Pub Date : 2023-02-28DOI: 10.20961/equilibrium.v7i1.65677
B. Sugiarto, Adhi Setyawan, Octavia Nurmalitasari, RR Endang Sulistyowati
Porang tubers (Amorphophallus oncophyllus) contain very high rates of glucomannan and have many benefits in various fields of health, pharmaceutical, industrial, and food fields. Besides having great benefits, porang tubers contain calcium oxalate which causes itching if consumed directly, irritation and kidney stones. The purpose of this study was to make porang tubers free from oxalate content by using various concentrations and types of immersion media on porang. The types of immersion media are water, salt, alcohol, and vinegar. Oxalate rates were analyzed by permanganometric titration method. The results of the diced porang immersion in this study showed that water with a temperature of 70°C with an immersion time of 120 minutes, salt solution at a concentration of 14% with an immersion time of 90 minutes, alcohol with a concentration of 40% with a soaking time of 30 minutes, and vinegar with a concentration of 30% with an immersion time of 150 minutes is the optimal result. While the porang immersion with long slices obtained optimal results in water with a temperature of 50°C with an immersion time of 150 minutes, salt solution at a concentration of 14% with an immersion time of 150 minutes, alcohol with a concentration of 60% with an immersion time of 150 minutes, and vinegar acid with a concentration of 20% with an immersion time of 150 minutes. In the optimal results of the dice, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 68.4%, alcohol decreased by 24.6%, and vinegar decreased by 11.8%. In the optimal results of the spring roll filling, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 7.3%, alcohol decreased by 19.7%, and vinegar decreased by 11.8%. Keywords: Porang, Calcium oxalate,Permanganometric
{"title":"The Effect Of Concentration And Type Of Soaking Media (Water, Alcohol, Salt, And Vinegar) On Decreasing Oxalate Levels (Washability) In Porang","authors":"B. Sugiarto, Adhi Setyawan, Octavia Nurmalitasari, RR Endang Sulistyowati","doi":"10.20961/equilibrium.v7i1.65677","DOIUrl":"https://doi.org/10.20961/equilibrium.v7i1.65677","url":null,"abstract":"Porang tubers (Amorphophallus oncophyllus) contain very high rates of glucomannan and have many benefits in various fields of health, pharmaceutical, industrial, and food fields. Besides having great benefits, porang tubers contain calcium oxalate which causes itching if consumed directly, irritation and kidney stones. The purpose of this study was to make porang tubers free from oxalate content by using various concentrations and types of immersion media on porang. The types of immersion media are water, salt, alcohol, and vinegar. Oxalate rates were analyzed by permanganometric titration method. The results of the diced porang immersion in this study showed that water with a temperature of 70°C with an immersion time of 120 minutes, salt solution at a concentration of 14% with an immersion time of 90 minutes, alcohol with a concentration of 40% with a soaking time of 30 minutes, and vinegar with a concentration of 30% with an immersion time of 150 minutes is the optimal result. While the porang immersion with long slices obtained optimal results in water with a temperature of 50°C with an immersion time of 150 minutes, salt solution at a concentration of 14% with an immersion time of 150 minutes, alcohol with a concentration of 60% with an immersion time of 150 minutes, and vinegar acid with a concentration of 20% with an immersion time of 150 minutes. In the optimal results of the dice, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 68.4%, alcohol decreased by 24.6%, and vinegar decreased by 11.8%. In the optimal results of the spring roll filling, the oxalate content in water immersion decreased by 2.4 %, salt solution decreased by 7.3%, alcohol decreased by 19.7%, and vinegar decreased by 11.8%. Keywords: Porang, Calcium oxalate,Permanganometric","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73665476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-08DOI: 10.20961/equilibrium.v7i1.67919
S. Distantina, Ghea Safiraventa Anggreini, Fahrul An'nas Al Kamal, M. Kaavessina, Fadilah Fadilah
Musa paradisiaca var. raja peel waste contains cellulose which has the potential to be a raw material for synthesizing hydrogels. This research utilizes acrylamide monomer grafted onto banana peel cellulose backbone using the microwave grafting method to produce hydrogel. The banana peel waste was dried to a constant weight and then crushed into powder. Banana peel powder was through a delignification process with the addition of NaOH and bleached with NaClO to took only the cellulose of the banana peel. The mixture of banana peel cellulose-acrylamide-potassium peroxodisulfate powder through the grafting process was repeated with variations in KPS concentration and microwave power. The reaction was terminated with a hydroquinone solution, washed with acetone, and then precipitated. The precipitated solid was dried to a powder called cellulose-g-PAAM. A homogeneous solution of 2% carrageenan-cellulose-g-PAAM underwent a physical crosslinking process using KCl and CaCl2 solutions after passing through palm oil to form a bead gel. The purpose of this research was to determine the effect of potassium peroxodisulfate (KPS) initiator concentration and microwave power on the swelling capacity in water. The properties of obtained dried bead gels were characterized their functional groups using FTIR and swelling capacity test in water. From this research, it can be concluded that banana peel cellulose was successfully grafted onto acrylamide monomer as evidenced by the FTIR test results. The lower KPS concentration is the greater on the swelling capacity and the microwave power has no effect on the swelling capacity of bead gels.Keywords: Banana peel, Bead gel, Microwave, Swelling degree
{"title":"Effect of Potassium Peroxodisulphate and Microwave Power on Hydrogel Character Based on Banana Peel Waste Using Microwave Grafting Method","authors":"S. Distantina, Ghea Safiraventa Anggreini, Fahrul An'nas Al Kamal, M. Kaavessina, Fadilah Fadilah","doi":"10.20961/equilibrium.v7i1.67919","DOIUrl":"https://doi.org/10.20961/equilibrium.v7i1.67919","url":null,"abstract":"Musa paradisiaca var. raja peel waste contains cellulose which has the potential to be a raw material for synthesizing hydrogels. This research utilizes acrylamide monomer grafted onto banana peel cellulose backbone using the microwave grafting method to produce hydrogel. The banana peel waste was dried to a constant weight and then crushed into powder. Banana peel powder was through a delignification process with the addition of NaOH and bleached with NaClO to took only the cellulose of the banana peel. The mixture of banana peel cellulose-acrylamide-potassium peroxodisulfate powder through the grafting process was repeated with variations in KPS concentration and microwave power. The reaction was terminated with a hydroquinone solution, washed with acetone, and then precipitated. The precipitated solid was dried to a powder called cellulose-g-PAAM. A homogeneous solution of 2% carrageenan-cellulose-g-PAAM underwent a physical crosslinking process using KCl and CaCl2 solutions after passing through palm oil to form a bead gel. The purpose of this research was to determine the effect of potassium peroxodisulfate (KPS) initiator concentration and microwave power on the swelling capacity in water. The properties of obtained dried bead gels were characterized their functional groups using FTIR and swelling capacity test in water. From this research, it can be concluded that banana peel cellulose was successfully grafted onto acrylamide monomer as evidenced by the FTIR test results. The lower KPS concentration is the greater on the swelling capacity and the microwave power has no effect on the swelling capacity of bead gels.Keywords: Banana peel, Bead gel, Microwave, Swelling degree ","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75947507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-12DOI: 10.20961/equilibrium.v6i2.66334
Tika Paramitha, E. R. Dyartanti, Arif Jumari, Agus Purwanto, A. Nur, Anatta Wahyu Budiman
Sekolah Menengah Kejuruan (SMK) Muhammadiyah 4 Surakarta memiliki jurusan Kimia Industri yang mempersiapkan tenaga terampil di industri kimia untuk mendukung dalam pengembangan teknologi. Salah satu Industri Kimia yang berkembang saat ini adalah Industri Baterai Lithium Ion (LIB). LIB saat ini digunakan tidak hanya pada perangkat elektronik portabel, seperti komputer dan telepon seluler, tetapi juga untuk kendaraan listrik atau kendaraan hybrid. Oleh karena itu, lulusan SMK dengan Program Keahlian Kimia Industri hendaknya menyiapkan lulusan yang mempunyai kompetensi di bidang teknologi baterai. Dengan kompetensi dosen dalam teknologi produksi material aktif baterai pada skala mini plant dan fasilitas yang mewadai di Pusat Unggulan IPTEK (PUI) PT Teknologi Penyimpanan Energi Listrik, maka sangat memungkinkan dosen untuk mengenalkannya kepada siswa SMK Muhammadiyah 4 Surakarta. Metode yang dilakukan dalam pelatihan ini adalah metode ceramah, diskusi dan praktik. Adapun materi yang disampaikan mengenai baterai lithium ion (aplikasi, jenis, tipe, struktur, proses pembuatan material aktif, dan fabrikasi). Kegiatan praktik yang dilakukan yaitu praktik pembuatan material aktif katoda dengan metode ko-presipitasi dan fabrikasi sel baterai. Hasil kegiatan ini adalah kompetensi siswa dan guru meningkat yang ditunjukkan dengan nilai Pre-Test yang lebih baik dibandingkan dengan Post-Test.
{"title":"Peningkatan Kompetensi Siswa SMK Muhammadiyah 4 Surakarta mengenai Industri Baterai Lithium Ion","authors":"Tika Paramitha, E. R. Dyartanti, Arif Jumari, Agus Purwanto, A. Nur, Anatta Wahyu Budiman","doi":"10.20961/equilibrium.v6i2.66334","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.66334","url":null,"abstract":"Sekolah Menengah Kejuruan (SMK) Muhammadiyah 4 Surakarta memiliki jurusan Kimia Industri yang mempersiapkan tenaga terampil di industri kimia untuk mendukung dalam pengembangan teknologi. Salah satu Industri Kimia yang berkembang saat ini adalah Industri Baterai Lithium Ion (LIB). LIB saat ini digunakan tidak hanya pada perangkat elektronik portabel, seperti komputer dan telepon seluler, tetapi juga untuk kendaraan listrik atau kendaraan hybrid. Oleh karena itu, lulusan SMK dengan Program Keahlian Kimia Industri hendaknya menyiapkan lulusan yang mempunyai kompetensi di bidang teknologi baterai. Dengan kompetensi dosen dalam teknologi produksi material aktif baterai pada skala mini plant dan fasilitas yang mewadai di Pusat Unggulan IPTEK (PUI) PT Teknologi Penyimpanan Energi Listrik, maka sangat memungkinkan dosen untuk mengenalkannya kepada siswa SMK Muhammadiyah 4 Surakarta. Metode yang dilakukan dalam pelatihan ini adalah metode ceramah, diskusi dan praktik. Adapun materi yang disampaikan mengenai baterai lithium ion (aplikasi, jenis, tipe, struktur, proses pembuatan material aktif, dan fabrikasi). Kegiatan praktik yang dilakukan yaitu praktik pembuatan material aktif katoda dengan metode ko-presipitasi dan fabrikasi sel baterai. Hasil kegiatan ini adalah kompetensi siswa dan guru meningkat yang ditunjukkan dengan nilai Pre-Test yang lebih baik dibandingkan dengan Post-Test.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85819669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-12DOI: 10.20961/equilibrium.v6i2.65518
A. B. Aritonang, Putry Parwaty, Muhammad Agus Wibowo, Puji Ardiningsih., Adhitiyawarman Adhitiyawarman
. Sintesis TiO2-rGO telah dilakukan dengan prekursor TiO2 dan rGO yang disintesis dari batang grafit menggunakan metode Hidrotermal. Fotokatalis TiO2-rGO hasil sintesis dikarakterisasi menggunakan X-ray diffractometer (XRD), Fourier-transform infrared spectroscopy (FT-IR) dan Diffuse Reflectance UV-VIS (DRUV). Sintesis rGO dengan metode elektrokimia menggunakan agen pereduksi Alumunium. Dilakukan uji aktivitas menggunakan metilen biru dengan bantuan sinar tampak. Berdasarkan data hasil perhitungan diperoleh nilai celah pita TiO2 sebesar 3,33 eV, TiO2-rGO sebesar 3,23 eV yang setara dengan panjang gelombang 378 nm dan 410 nm. Data tersebut menunjukkan bahwa material rGO memperkecil celah pita tetapi penurunan celah pita yang rendah dan aktivitas fotokatalitik TiO2 dibawah sinar tampak mengalami peningkatan setelah dikompositkan dengan rGO, dimana aktivitas fotokatalitik TiO2-rGO lebih efektif dibanding TiO2. Adapun nilai % degradasi TiO2 14,47% dan TiO2-rGO 67,39%.
{"title":"Sintesis TiO2-rGO Dengan Pereduksi Alumunium untuk Fotokatalisis Degradasi Metilen Biru dibawah Irradiasi Sinar Tampak","authors":"A. B. Aritonang, Putry Parwaty, Muhammad Agus Wibowo, Puji Ardiningsih., Adhitiyawarman Adhitiyawarman","doi":"10.20961/equilibrium.v6i2.65518","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.65518","url":null,"abstract":"<strong>.</strong> Sintesis TiO<sub>2</sub>-rGO telah dilakukan dengan prekursor TiO<sub>2</sub> dan rGO yang disintesis dari batang grafit menggunakan metode Hidrotermal. Fotokatalis TiO<sub>2</sub>-rGO hasil sintesis dikarakterisasi menggunakan <em>X-ray diffractometer</em> (XRD), <em>Fourier-transform infrared spectroscopy</em> (FT-IR) dan <em>Diffuse Reflectance</em> UV-VIS (DRUV). Sintesis rGO dengan metode elektrokimia menggunakan agen pereduksi Alumunium. Dilakukan uji aktivitas menggunakan metilen biru dengan bantuan sinar tampak. Berdasarkan data hasil perhitungan diperoleh nilai celah pita TiO<sub>2</sub> sebesar 3,33 eV, TiO<sub>2</sub>-rGO sebesar 3,23 eV yang setara dengan panjang gelombang 378 nm dan 410 nm. Data tersebut menunjukkan bahwa material rGO memperkecil celah pita tetapi penurunan celah pita yang rendah dan aktivitas fotokatalitik TiO<sub>2</sub> dibawah sinar tampak mengalami peningkatan setelah dikompositkan dengan rGO, dimana aktivitas fotokatalitik TiO2-rGO lebih efektif dibanding TiO<sub>2</sub>. Adapun nilai % degradasi TiO<sub>2</sub> 14,47% dan TiO<sub>2</sub>-rGO 67,39%.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77111015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-05DOI: 10.20961/equilibrium.v6i2.65939
Himmah Sekar Eka Ayu Gustiana, Ayub Mahmudi, Syahrul Aji Jayani, Cornelius Satria Yudha, Esa Nur Shohih, Firman Asto Putro, Muh Iqbal Al Fuady, Paryanto Paryanto, Windhu Griyasti Suci
ABSTRAK. Kewirausahaan merupakan salah satu tuntutan kompetensi lulusan siswa di SMK Negeri 1 Mojosongo. Kompetensi tersebut menjadi salah satu indikator kualitas sumber daya manusia lulusan SMK. Tim Manajemen sekolah selalu berusaha meningkatkan kualitas sumber daya siswa dan tenaga pengajarnya. Salah satu terobosan yang dilakukan adalah bekerjasama dengan Prodi D3 Teknik Kimia Universitas Sebelas Maret untuk meningkatkan wawasan siswanya. Konsep kerjasama ini berupa transfer keilmuan yang dikemas dalam kegiatan pengabdian masyarakat. Kegiatan ini memiliki beberapa tahapan dimulai dari identifikasi masalah mitra yaitu perlunya pemahaman konsep kewirausahaan, business plan, pemodalan dana hibah, konsep desain dan inovasi produk dan pemasaran usaha. Pada tahap awal kegiatan siswa diminta mengikuti pretest untuk mengetahui tingkat mula pemahaman. Tahap kedua paparan materi kewirausahaan dan diskusi, tahap ketiga demo sekaligus praktik langsung pembuatan inovasi produk pangan dari buah nipah. Kegiatan diakhiri dengan post test dan testimoni hasil kegiatan. Dari kegiatan yang telah dilakukan, menunjukkan hasil bahwa terdapat peningkatan pemahaman peserta tentang kewirausahaan dan inovasi produk menggunakan teknologi sederhana. ABSTRACT. Entrepreneurship is one of the required competencies for students' graduation at SMK Negeri 1 Mojosongo. Thus, this competency is one of the indicators to determine the quality of graduates from SMK N 1 Mojosongo. The School management has been trying to improve the quality of students and teaching staff. Collaboration between SMK N 1 Mojosongo and Diploma 3 of the Chemical Engineering Study Program of Universitas Sebelas Maret is one of the breakthroughs to increase students' insight. The concept of this collaboration is in the form of knowledge transfer which is packaged in community service activities. This activity begins with identifying the problems experienced by partners such as the need to understand the concept of entrepreneurship, business plans, grant funding, design concepts, product innovation, and business marketing. Before the main agenda begins, students are asked to take a pretest to determine their initial level of understanding. After a presentation on entrepreneurship, the students practice making food product innovations from Nypa fruticans. Finally, the students took the post-test and gave testimonials on the results of the activities. The results of this activity indicate that there is an increase in participants' understanding of entrepreneurship and product innovation with simple technology.
抽象。创业精神是SMK国家1 Mojosongo学生成绩的要求之一。这些能力成为人力资源职业高中毕业生质量指标之一。学校一直在努力提高质量管理团队教师学生资源和人力。做的突破之一是合作大学的生物化学工程Prodi D3十一3提高学生的见解。科学转移的这个合作概念包装的外联活动。这些活动有一些问题合作伙伴标识的开始阶段可能就是创业概念的理解,商业计划的必要性,pemodalan补助金,努力和创新的产品设计和营销概念。要求学生参加活动的早期阶段,前测水平起源的理解。第二阶段创业和讨论,第三阶段的演示材料接触第一手nipah果实的粮食生产创新产品。活动以post)测试结果证明。从已经完成的活动,结果表明,有增加了参与者对创业和创新产品使用简单的技术。抽象。企业家精神是一号所需之competencies for学生“毕业at SMK国家1 Mojosongo。因此,这competency indicators一号》到个重大graduates从SMK N 1 Mojosongo之品质。《学校管理已经试图improve优质学生和教书的工作人员。Collaboration之间SMK N 1 Mojosongo和文凭3大学化学工程研究项目》的3月11日breakthroughs一号》是为了增加学生”的实施。这个collaboration is in The form of之理念知识转移,这是packaged在社区服务活动。这个活动始于identifying the problems经历由partners这样的美国《企业家精神的理念,需要理解商业计划,格兰特funding concepts,广告营销创新,还有商业模式设计。《议程开始玩之前,学生是问带百万级前测到个重大的最初的谅解。a presentation之后,《学生实践创造食品广告创新的企业家精神上从Nypa fruticans。终于,《post-test和给学生图克斯testimonials on the results of the活动。这个活动之results participants indicate that那里是一个增加的谅解和广告创新和企业家精神的简单技术。
{"title":"Meningkatkan Potensi Kewirausahaan dan Inovasi Produk di SMK N 1 Mojosongo","authors":"Himmah Sekar Eka Ayu Gustiana, Ayub Mahmudi, Syahrul Aji Jayani, Cornelius Satria Yudha, Esa Nur Shohih, Firman Asto Putro, Muh Iqbal Al Fuady, Paryanto Paryanto, Windhu Griyasti Suci","doi":"10.20961/equilibrium.v6i2.65939","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.65939","url":null,"abstract":"ABSTRAK. Kewirausahaan merupakan salah satu tuntutan kompetensi lulusan siswa di SMK Negeri 1 Mojosongo. Kompetensi tersebut menjadi salah satu indikator kualitas sumber daya manusia lulusan SMK. Tim Manajemen sekolah selalu berusaha meningkatkan kualitas sumber daya siswa dan tenaga pengajarnya. Salah satu terobosan yang dilakukan adalah bekerjasama dengan Prodi D3 Teknik Kimia Universitas Sebelas Maret untuk meningkatkan wawasan siswanya. Konsep kerjasama ini berupa transfer keilmuan yang dikemas dalam kegiatan pengabdian masyarakat. Kegiatan ini memiliki beberapa tahapan dimulai dari identifikasi masalah mitra yaitu perlunya pemahaman konsep kewirausahaan, business plan, pemodalan dana hibah, konsep desain dan inovasi produk dan pemasaran usaha. Pada tahap awal kegiatan siswa diminta mengikuti pretest untuk mengetahui tingkat mula pemahaman. Tahap kedua paparan materi kewirausahaan dan diskusi, tahap ketiga demo sekaligus praktik langsung pembuatan inovasi produk pangan dari buah nipah. Kegiatan diakhiri dengan post test dan testimoni hasil kegiatan. Dari kegiatan yang telah dilakukan, menunjukkan hasil bahwa terdapat peningkatan pemahaman peserta tentang kewirausahaan dan inovasi produk menggunakan teknologi sederhana. ABSTRACT. Entrepreneurship is one of the required competencies for students' graduation at SMK Negeri 1 Mojosongo. Thus, this competency is one of the indicators to determine the quality of graduates from SMK N 1 Mojosongo. The School management has been trying to improve the quality of students and teaching staff. Collaboration between SMK N 1 Mojosongo and Diploma 3 of the Chemical Engineering Study Program of Universitas Sebelas Maret is one of the breakthroughs to increase students' insight. The concept of this collaboration is in the form of knowledge transfer which is packaged in community service activities. This activity begins with identifying the problems experienced by partners such as the need to understand the concept of entrepreneurship, business plans, grant funding, design concepts, product innovation, and business marketing. Before the main agenda begins, students are asked to take a pretest to determine their initial level of understanding. After a presentation on entrepreneurship, the students practice making food product innovations from Nypa fruticans. Finally, the students took the post-test and gave testimonials on the results of the activities. The results of this activity indicate that there is an increase in participants' understanding of entrepreneurship and product innovation with simple technology.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72565793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-05DOI: 10.20961/equilibrium.v6i2.66463
Dwi Ardiana Setyawardhani, Mujtahid Kaavessina, Fadilah Fadilah, S. Distantina, Endang Kwartiningsih, Y. C. Danarto, Aida Nur Ramadhani
ABSTRAK. CV Plantanesia merupakan industri penghasil minyak dari biji nyamplung (Calophyllum inophyllum) yang dikenal sebagai Tamanu oil. Minyak tersebut dijual sebagai bahan baku kosmetik untuk produk skin care dan obat tradisional seperti luka, penyakit kulit, rematik, minyak untuk urut maupun obat gatal. Produksi Tamanu oil menghasilkan limbah hasil pengepresan minyak dari bijinya yang berupa bungkil/ampas biji dan cangkang/kulit buah nyamplung. Limbah tersebut dihasilkan dalam jumlah besar dan belum dimanfaatkan sehingga hanya dibuang sebagai sampah dan dibakar. Cangkang biji nyamplung mengandung resin senyawa fenolik yang memiliki sifat antioksidan, anti inflamasi, anti kanker, dan anti mikroba sehingga dapat dimanfaatkan untuk pengobatan Tujuan pengabdian pada masyarakat ini adalah memberikan pelatihan pengolahan limbah pengepresan minyak biji nyamplung, khususnya cangkang biji dan pengolahannya untuk menjadi resin. Kegiatan ini dilakukan di CV. Plantanesia yang berlokasi di Tasikmadu, Kecamatan Jaten, Kabupaten Karanganyar. Pelatihan diberikan dalam bentuk penyuluhan, diskusi dan pelatihan pengambilan (ekstraksi) resin dari cangkang nyamplung. Proses ekstraksi resin dari cangkang nyamplung dan pengaturan kondisi optimal ekstraksi dilakukan terlebih dahulu melalui percobaan pendahuluan di Laboratorium Program Studi Teknik Kimia FT UNS. Hasil percobaan tersebut digunakan sebagai materi pelatihan. Penyampaian materi dilakukan melalui kunjungan, penyuluhan dan pelatihan pada pelaku usaha khususnya CV Plantanesia. Materi penyuluhan dikemas dalam modul dan dipraktekkan secara langsung di lokasi CV. Dari kegiatan ini, mitra memperoleh peningkatan wawasan akan pemanfaatan cangkang biji nyamplung. Produk resin yang dihasilkan diharapkan dapat bermanfaat sebagai produk samping yang bernilai jual tinggi untuk meningkatkan pendapatan bagi pelaku usaha, sekaligus dapat mengatasi masalah limbahnya. ABSTRACT. CV Plantanesia is a home industry that produces nyamplung (Calophyllum inophyllum) seed oil known as Tamanu oil. The oil is usually used for skin care products and traditional medicines such as wounds, skin diseases, rheumatism, massage oil and itching medicine. Tamanu oil production leaves solid waste from the pressing process, which is cake/seed dregs and shells/skin of nyamplung fruit. This waste is generated in large quantities and has not been utilized, so it is only disposed of as garbage or just burned. Nyamplung seed shells contain resin phenolic compounds which is used as antioxidant, anti-inflammatory, anti-cancer and anti-microbial properties. It can be used for medical treatment. This project aims to provide training on processing waste nyamplung seed oil, especially the seed shells and their processing to become resin. This activity is carried out at CV. Plantanesia which is located in Tasikmadu, Jaten, Karanganyar. The project was implemented in various activities, such as counseling, focus group discussions and workshop for extracting
抽象。Plantanesia是一种叫做Tamanu oil的油库。它作为化妆品的原料用于皮肤护理产品和传统药物，如伤口、皮肤疾病、风湿病、按摩油和瘙痒。Tamanu油的生产产生了从种子中提取的油渣，其种子的外壳和果壳。这些废物产生大量未开发的废物，只作为废物处理并焚烧。nyamplung的壳含有一种叫做树脂的化合物，它具有抗氧化剂、消炎药、抗癌和抗菌素的特性，因此它可以被用来治疗社区奉献的目的，即对废液进行处理，对稀释它的果子油进行培训，尤其是对它的籽壳和用于树脂的加工。这些活动在简历中进行。Plantanesia位于karaan区Jaten street, tasepmadu。培训以辅导、讨论和提取蛋壳树脂的形式进行。在FT UNS化学工程项目的一个实验室里，先从外壳中提取树脂，并设定最佳的提取条件。实验的结果被用作训练材料。资料是通过对经营者的访问、教育和培训来完成的，尤其是Plantanesia的CV。推广材料被打包在模块中，并在CV现场进行现场实践。从这些活动中，合作伙伴对自己的内壳的使用增加了认识。生产的树脂产品被认为是具有高度销售价值的副产品，可以提高企业的收入，同时解决废品问题。抽象。Plantanesia是一个家产，叫做Calophyllum inophyllum，种子油就是Tamanu oil。石油通常用于皮肤护理产品和传统药物，如伤口、皮肤疾病、恒河、大规模石油和替代药物。Tamanu石油生产的固体浪费在压力过程中，这是蛋糕/种子和片状果实。这种浪费在巨大的质量上，并没有被过度利用，所以它只是被过度利用了。提供种子壳粘附苯酚树脂，抗氧、抗炎、抗癌症和抗微生物特性。可以用于医疗治疗。这个项目提供了浪费种子油的培训，特别是种子壳和它们的加工变成树脂。这一行动令人担忧。Plantanesia是tacymadu, Jaten, karjajaran。该项目是在不同的活动中实现的，such as counseling, focus group discustion和工作坊从剪接外壳中提取树脂。3月11日被批准的实验正在工业车间进行。从这个活动中，伙伴们又增加了对nyamplung种子壳的有用洞察。树脂产品预计会像高产量产品一样有用，增加工业的好处，从而增加浪费问题。
{"title":"Pemanfaatan Cangkang Biji Nyamplung sebagai Penghasil Resin untuk Mengatasi Permasalahan Limbah Padat di CV Plantanesia","authors":"Dwi Ardiana Setyawardhani, Mujtahid Kaavessina, Fadilah Fadilah, S. Distantina, Endang Kwartiningsih, Y. C. Danarto, Aida Nur Ramadhani","doi":"10.20961/equilibrium.v6i2.66463","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.66463","url":null,"abstract":"ABSTRAK. CV Plantanesia merupakan industri penghasil minyak dari biji nyamplung (Calophyllum inophyllum) yang dikenal sebagai Tamanu oil. Minyak tersebut dijual sebagai bahan baku kosmetik untuk produk skin care dan obat tradisional seperti luka, penyakit kulit, rematik, minyak untuk urut maupun obat gatal. Produksi Tamanu oil menghasilkan limbah hasil pengepresan minyak dari bijinya yang berupa bungkil/ampas biji dan cangkang/kulit buah nyamplung. Limbah tersebut dihasilkan dalam jumlah besar dan belum dimanfaatkan sehingga hanya dibuang sebagai sampah dan dibakar. Cangkang biji nyamplung mengandung resin senyawa fenolik yang memiliki sifat antioksidan, anti inflamasi, anti kanker, dan anti mikroba sehingga dapat dimanfaatkan untuk pengobatan Tujuan pengabdian pada masyarakat ini adalah memberikan pelatihan pengolahan limbah pengepresan minyak biji nyamplung, khususnya cangkang biji dan pengolahannya untuk menjadi resin. Kegiatan ini dilakukan di CV. Plantanesia yang berlokasi di Tasikmadu, Kecamatan Jaten, Kabupaten Karanganyar. Pelatihan diberikan dalam bentuk penyuluhan, diskusi dan pelatihan pengambilan (ekstraksi) resin dari cangkang nyamplung. Proses ekstraksi resin dari cangkang nyamplung dan pengaturan kondisi optimal ekstraksi dilakukan terlebih dahulu melalui percobaan pendahuluan di Laboratorium Program Studi Teknik Kimia FT UNS. Hasil percobaan tersebut digunakan sebagai materi pelatihan. Penyampaian materi dilakukan melalui kunjungan, penyuluhan dan pelatihan pada pelaku usaha khususnya CV Plantanesia. Materi penyuluhan dikemas dalam modul dan dipraktekkan secara langsung di lokasi CV. Dari kegiatan ini, mitra memperoleh peningkatan wawasan akan pemanfaatan cangkang biji nyamplung. Produk resin yang dihasilkan diharapkan dapat bermanfaat sebagai produk samping yang bernilai jual tinggi untuk meningkatkan pendapatan bagi pelaku usaha, sekaligus dapat mengatasi masalah limbahnya. ABSTRACT. CV Plantanesia is a home industry that produces nyamplung (Calophyllum inophyllum) seed oil known as Tamanu oil. The oil is usually used for skin care products and traditional medicines such as wounds, skin diseases, rheumatism, massage oil and itching medicine. Tamanu oil production leaves solid waste from the pressing process, which is cake/seed dregs and shells/skin of nyamplung fruit. This waste is generated in large quantities and has not been utilized, so it is only disposed of as garbage or just burned. Nyamplung seed shells contain resin phenolic compounds which is used as antioxidant, anti-inflammatory, anti-cancer and anti-microbial properties. It can be used for medical treatment. This project aims to provide training on processing waste nyamplung seed oil, especially the seed shells and their processing to become resin. This activity is carried out at CV. Plantanesia which is located in Tasikmadu, Jaten, Karanganyar. The project was implemented in various activities, such as counseling, focus group discussions and workshop for extracting","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86999011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-04DOI: 10.20961/equilibrium.v6i2.68130
S. Distantina, N. Hidayatun, Shifa Annisa Nabila, M. Kaavessina, Fadilah Fadilah
Hydrogels are widely used for drug delivery systems, immuno-chemotherapy applications, efficient use of water, preventing dry soil, and increasing soil infiltration. Generally, hydrogels are derived from synthetic polymers which is non-biodegradable and toxic. Cassava bagasse is an alternative cellulose to make hydrogels. The purpose of this research was to determine the effect of the amount of acrylamide and potassium peroxodisulphate (KPS) initiator on the quality of bead gel based on cassava bagasse-carrageenan. Chemical structure of the hydrogel was studied using FTIR spectroscopy. Cassava bagasse was immersed in a solution of n-hexane to separate the fat. Then, fat-free cassava bagasse was grafted with mass ratios of cassava and acrylamide 1:5, 1:10, and 1:15 in 110 mL water. The solution was added with a KPS initiator with weight variations (g) 0.04; 0.08; 0.12 then stirred 15 min. The solution was put in the microwave with 630 watts of irradiation for 450 s with the cooling cycle temperature maintained at 65-70oC. The aqueous of grafted polymer and carrageenan was injected into beaker glass that contained 1 cm of palm oil and mixture of 0.2 M CaCl2 and 0.2 M KCl in an ice bath. Results showed that the highest average swelling capacity was found in the bead gel variation 1:15 with the number of initiators 0.04 g of 1797.95% at a time of 210 minutes of immersion. From FTIR spectrum, it was found that there was a success in grafting acrylamide into bagasse’s backbone using the microwave grafting method with KPS as initiator.
水凝胶广泛应用于药物输送系统，免疫化疗应用，有效利用水，防止土壤干燥，增加土壤渗透。一般来说，水凝胶是由合成的聚合物制成的，这些聚合物是不可生物降解的，而且是有毒的。木薯甘蔗渣是制造水凝胶的另一种纤维素。研究了丙烯酰胺用量和过氧化二硫酸钾(KPS)引发剂用量对木薯甘蔗渣-卡拉胶珠凝胶质量的影响。利用傅里叶红外光谱研究了水凝胶的化学结构。将木薯甘蔗渣浸在正己烷溶液中分离脂肪。然后将脱脂木薯甘蔗渣按木薯与丙烯酰胺的质量比1:5、1:10、1:15接枝于110 mL水中。溶液中加入质量变化(g) 0.04的KPS引发剂;0.08;0.12，搅拌15 min。将溶液置于630瓦的微波中辐照450 s，冷却循环温度为65-70℃。接枝聚合物和卡拉胶的水溶液在冰浴中注入含有1 cm棕榈油和0.2 M CaCl2和0.2 M KCl混合物的烧杯玻璃中。结果表明，在浸泡210 min时，微球凝胶浓度变化为1:15，引发剂数量为0.04 g，平均溶胀量为1797.95%，溶胀量最高。通过红外光谱分析发现，以KPS为引发剂的微波接枝方法成功地将丙烯酰胺接枝到甘蔗渣骨架上。
{"title":"Effect of Acrylamide And Potassium Peroxodisulphate on The Quality of Bead Gel Based on Cassava Bagasse-Carrageenan Using Microwave Grafting Method","authors":"S. Distantina, N. Hidayatun, Shifa Annisa Nabila, M. Kaavessina, Fadilah Fadilah","doi":"10.20961/equilibrium.v6i2.68130","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.68130","url":null,"abstract":"Hydrogels are widely used for drug delivery systems, immuno-chemotherapy applications, efficient use of water, preventing dry soil, and increasing soil infiltration. Generally, hydrogels are derived from synthetic polymers which is non-biodegradable and toxic. Cassava bagasse is an alternative cellulose to make hydrogels. The purpose of this research was to determine the effect of the amount of acrylamide and potassium peroxodisulphate (KPS) initiator on the quality of bead gel based on cassava bagasse-carrageenan. Chemical structure of the hydrogel was studied using FTIR spectroscopy. Cassava bagasse was immersed in a solution of n-hexane to separate the fat. Then, fat-free cassava bagasse was grafted with mass ratios of cassava and acrylamide 1:5, 1:10, and 1:15 in 110 mL water. The solution was added with a KPS initiator with weight variations (g) 0.04; 0.08; 0.12 then stirred 15 min. The solution was put in the microwave with 630 watts of irradiation for 450 s with the cooling cycle temperature maintained at 65-70oC. The aqueous of grafted polymer and carrageenan was injected into beaker glass that contained 1 cm of palm oil and mixture of 0.2 M CaCl2 and 0.2 M KCl in an ice bath. Results showed that the highest average swelling capacity was found in the bead gel variation 1:15 with the number of initiators 0.04 g of 1797.95% at a time of 210 minutes of immersion. From FTIR spectrum, it was found that there was a success in grafting acrylamide into bagasse’s backbone using the microwave grafting method with KPS as initiator.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88998394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-03DOI: 10.20961/equilibrium.v6i2.62623
A. Susanti, Diaz Dzulriyana Jalesaputri, F. Hasanah, Achmad Tegar Romadhoni, Alvin Petrus Gultom
The growth of the packaged beverages market in Indonesia is overgrowing. One sector of packaged beverages is carbonated beverages and bottled water. The main problem with packaged beverages containing dissolved gases is maintaining product quality during shelf life. Packaging materials and packaging lids cause a decrease in dissolved gas levels in beverages. Therefore, this study aims to analyze leaks in polyethylene terephthalate and glass bottles so that can use them to estimate the shelf life of the product. This study uses water, 3 types of glass bottles, and 1 type of plastic bottle. Bottles filled with water with various filling volumes of 40%v/v, 60%v/v, and 80%v/v were then analyzed for bottle leakage for 8 days. The results showed that effectively used a glass bottle with a volume of 250mL filled with more than 80%v/v, this was because it had the least leakage rate compared to others. In addition, this bottle has an attractive visual, easy labeling, and the size is not too large (ergonomic).
{"title":"The Study of Selection Bottle Packaging for Carbonated Beverages","authors":"A. Susanti, Diaz Dzulriyana Jalesaputri, F. Hasanah, Achmad Tegar Romadhoni, Alvin Petrus Gultom","doi":"10.20961/equilibrium.v6i2.62623","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.62623","url":null,"abstract":"The growth of the packaged beverages market in Indonesia is overgrowing. One sector of packaged beverages is carbonated beverages and bottled water. The main problem with packaged beverages containing dissolved gases is maintaining product quality during shelf life. Packaging materials and packaging lids cause a decrease in dissolved gas levels in beverages. Therefore, this study aims to analyze leaks in polyethylene terephthalate and glass bottles so that can use them to estimate the shelf life of the product. This study uses water, 3 types of glass bottles, and 1 type of plastic bottle. Bottles filled with water with various filling volumes of 40%v/v, 60%v/v, and 80%v/v were then analyzed for bottle leakage for 8 days. The results showed that effectively used a glass bottle with a volume of 250mL filled with more than 80%v/v, this was because it had the least leakage rate compared to others. In addition, this bottle has an attractive visual, easy labeling, and the size is not too large (ergonomic).","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80927733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.20961/equilibrium.v6i2.64147
M. Margono, Eudia Novianty Putri, E. Gumilar
The O/W emulsion of sunflower seed oil base cream has the advantage of maintaining skin moisture, anti-inflammatory, easy to apply, not sticky, and easily washed off with water. A Formula has an important role in a base cream manufacturing due to improper formula causing drastic changes in the properties and characteristics. These experiments were studied to investigate the effects of fraction of natural emulsifier, fraction of sunflower seed oil, and impeller speed on the base cream characteristics. The characteristics observed were spreadability, globule diameter, and stability of the base cream. The base cream was prepared in some formulas and various of impeller speeds when the oil phase was poured into the water phase gradually. The working temperature was kept between 60-70oC for 30 minutes of mixing. Observations of the spreadability and the globule diameter were conducted every 5 minutes, while the stability just observed at the end of process. The treatment of 2000 rpm of impeller speed on 4% of emulsifier and 10% of sunflower seed oil resulted in the base cream with spreadability of 7.1 + 0.68 cm and globule diameter of 12.7 + 1.62 µm, while all of the formulas and impeller speeds resulted in O/W base cream having good stability.
{"title":"Pengaruh Fraksi Minyak dan Emulsifier serta Kecepatan Pengadukan terhadap Karakteristik Emulsi Minyak Biji Bunga Matahari (Helianthus annuus L.) dalam Air (M/A)","authors":"M. Margono, Eudia Novianty Putri, E. Gumilar","doi":"10.20961/equilibrium.v6i2.64147","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.64147","url":null,"abstract":"The O/W emulsion of sunflower seed oil base cream has the advantage of maintaining skin moisture, anti-inflammatory, easy to apply, not sticky, and easily washed off with water. A Formula has an important role in a base cream manufacturing due to improper formula causing drastic changes in the properties and characteristics. These experiments were studied to investigate the effects of fraction of natural emulsifier, fraction of sunflower seed oil, and impeller speed on the base cream characteristics. The characteristics observed were spreadability, globule diameter, and stability of the base cream. The base cream was prepared in some formulas and various of impeller speeds when the oil phase was poured into the water phase gradually. The working temperature was kept between 60-70oC for 30 minutes of mixing. Observations of the spreadability and the globule diameter were conducted every 5 minutes, while the stability just observed at the end of process. The treatment of 2000 rpm of impeller speed on 4% of emulsifier and 10% of sunflower seed oil resulted in the base cream with spreadability of 7.1 + 0.68 cm and globule diameter of 12.7 + 1.62 µm, while all of the formulas and impeller speeds resulted in O/W base cream having good stability.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81297312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In water scarce countries such as Eritrea, maintaining brewery industry remain ever challenging task. Currently, Asmara breweries is the only beer producing factory consuming 8.46 L of water per every L of beer produced which is notably higher than Brewer’s Association (BA) benchmark and consequently generates 7.53 L of wastewater/L of beer. Bottle cleaning and brewery activities ascertain ample effluent bases. Wastewater from bottle cleaning (BCWW), brewery (BWW) and mixed (MWW) have attributed a wide spectrum of 3500-160000 mg/L of COD and 327-26667 mg/L of BOD5, which are significantly overtops other reported brewery effluents. Physicochemical treatments including coagulation with conventional (alum) and natural (MO seed) flocculants have tested to remove higher COD and BOD5 concentrations of brewery effluents. Optimal coagulant dosage determined by accounting turbidity as a key performance indicator. Alum treatment of BCWW and MO seed flocculation of MWW have resulted in lower turbidity levels of 0.49 and 6.17 NTU at 60 mg/L of dosages respectively. The optimal quantities of 92.2 % and 86.6% (by weight) of water recovered from alum treatment of BCWW and MO seed coagulation of MWW respectively. Higher sludge volumes recorded as a major disadvantage in alum coagulation whereas natural coagulant, MO seed manifested competitive results in removal of COD, BOD5, Chlorine, Nitrogen, Sulphate, Sodium, TDS and TSS along with PH stabilization. In addition, 97.2% of influent turbidity removed through MO seed coagulation treatment, an equipollent to alum despite of four fold increment in potassium levels.
{"title":"Brewery Effluent Treatment with Conventional and Natural Coagulants","authors":"Ramesh Babu Aremanda, Filmon Berhane, Heaven Daniel, A. Mehari, Arsiema Tekle","doi":"10.20961/equilibrium.v6i2.66528","DOIUrl":"https://doi.org/10.20961/equilibrium.v6i2.66528","url":null,"abstract":"In water scarce countries such as Eritrea, maintaining brewery industry remain ever challenging task. Currently, Asmara breweries is the only beer producing factory consuming 8.46 L of water per every L of beer produced which is notably higher than Brewer’s Association (BA) benchmark and consequently generates 7.53 L of wastewater/L of beer. Bottle cleaning and brewery activities ascertain ample effluent bases. Wastewater from bottle cleaning (BCWW), brewery (BWW) and mixed (MWW) have attributed a wide spectrum of 3500-160000 mg/L of COD and 327-26667 mg/L of BOD5, which are significantly overtops other reported brewery effluents. Physicochemical treatments including coagulation with conventional (alum) and natural (MO seed) flocculants have tested to remove higher COD and BOD5 concentrations of brewery effluents. Optimal coagulant dosage determined by accounting turbidity as a key performance indicator. Alum treatment of BCWW and MO seed flocculation of MWW have resulted in lower turbidity levels of 0.49 and 6.17 NTU at 60 mg/L of dosages respectively. The optimal quantities of 92.2 % and 86.6% (by weight) of water recovered from alum treatment of BCWW and MO seed coagulation of MWW respectively. Higher sludge volumes recorded as a major disadvantage in alum coagulation whereas natural coagulant, MO seed manifested competitive results in removal of COD, BOD5, Chlorine, Nitrogen, Sulphate, Sodium, TDS and TSS along with PH stabilization. In addition, 97.2% of influent turbidity removed through MO seed coagulation treatment, an equipollent to alum despite of four fold increment in potassium levels.","PeriodicalId":11866,"journal":{"name":"Equilibrium Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78450308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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