{"title":"PERFORMANCE AND MECHANISMS OF MALACHITE GREEN DYE ADSORPTION USING INDUSTRIAL SOLID WASTE AS ADSORBENT","authors":"S. Savcı, Serhat Donmez, M. A. Mazmancı","doi":"10.30638/eemj.2023.009","DOIUrl":"https://doi.org/10.30638/eemj.2023.009","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69519647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ECOSYSTEM SERVICES AND ENVIRONMENTAL BENEFIT VALUES ON KOMODO ISLAND AND PADAR ISLAND IN KOMODO NATIONAL PARK, INDONESIA","authors":"Irman Firmansyah, Wayan Budiasa, Chaterina Agusta Paulus, Dede Aulia Rahman, Tatan Sukwika, Erwin Hermawan, Nama Casnan","doi":"10.30638/eemj.2023.103","DOIUrl":"https://doi.org/10.30638/eemj.2023.103","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135009126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ENHANCED COPPER REMOVAL AND BIOGAS PRODUCTION THROUGH INTERMITTENT OPERATION OF COUPLED MODIFIED UPFLOW WITH STATIC GRANULAR BED REACTOR TREATING COPPER-CONTAINING WASTEWATER","authors":"Mariraj Mohan Sundararajan, Swathi Thirunavukkarasan","doi":"10.30638/eemj.2023.102","DOIUrl":"https://doi.org/10.30638/eemj.2023.102","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135009845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RESEARCH ON REGIONAL ECOLOGICAL COMPENSATION IN CHINA: A FOCUS ON CARBON EQUALITY","authors":"Yuxin Xie, Junwen Cao","doi":"10.30638/eemj.2023.106","DOIUrl":"https://doi.org/10.30638/eemj.2023.106","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135010067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AN EMPIRICAL STUDY OF INDUSTRIAL SOLID WASTE COLLECTION IN SHWE PYI THAR INDUSTRIAL ZONE, YANGON","authors":"H. Park, Myint Zaw Oo","doi":"10.30638/eemj.2023.003","DOIUrl":"https://doi.org/10.30638/eemj.2023.003","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69518940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BIOLOGICAL ASSESSMENT OF WATER QUALITY IN A MOSAIC OF RIVERINE, ESTUARINE AND COASTAL ECOSYSTEMS","authors":"Atefeh Chamani, A. Yousefi, M. A. Nadoushan","doi":"10.30638/eemj.2023.004","DOIUrl":"https://doi.org/10.30638/eemj.2023.004","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69518988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"HOW WIDTH AND COLOR VARIABLES OF GREENWAYS AFFECT USER SATISFACTION","authors":"Huixing Song, Jialu Song, Lan Luo, Yixuan Wu, Qin Zeng, Yanzuo Zhou","doi":"10.30638/eemj.2023.006","DOIUrl":"https://doi.org/10.30638/eemj.2023.006","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69519897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AN EMPRICAL STUDY ON THE ROLE OF NEW ENERGY TRANSFORMATION AND UPGRADING IN PROMOTING CHINA'S ECONOMY","authors":"Jian Yang, Yanan Wu","doi":"10.30638/eemj.2023.014","DOIUrl":"https://doi.org/10.30638/eemj.2023.014","url":null,"abstract":"","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69520413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Steel industries generate wastewater laden with toxic metals such as Chromium VI(Cr6+) which are classified as carcinogenic and toxic to aquatic life. There is need to meet standards for effluent discharge in order to comply with local and international standards. Chemical precipitation is a commonly applied low-cost technology, but has proven to be unsustainable due to sludge disposal that creates secondary pollution. Devki steel factory located in Ruiru municipality, Kiambu County is a factory that process steel products. Chemical precipitation is applied in Cr6+ treatment at effluent discharged at the factory which exceed international and local effluent discharge standard limits. There is thus need to develop innovative yet affordable technologies for Cr6+. The potential of carbonized macadamia nutshell (CMN) in Cr6+ adsorption as an alternative and eco-friendly technology was evaluated. Carbonization process modified the adsorbent surface properties by increasing the surface area, pore size, carbon content, and Cr6+ removal rate from 40.21-380.64 m2/g, 1.63-8.78 Å, 47.01-57.2% and 71-97% respectively. Maximum Cr6+ adsorption was obtained at a metal concentration 50mg/L, pH 4, contact time of 2 hours, 0.2g dose, and at 30°C. The equilibrium data were well depicted by Langmuir and Freundlich isotherm. Experimental data were well fitted with Pseudo second-order kinetics. Maximum adsorption capacity of 24.3 mg/g and removal efficiency at 97.2% was attained by CMN compared to raw macadamia nutshell (RMN) 17.95 mg/g and 71.6% respectively. The desorption results revealed that the spent adsorbent could be reused for three adsorption cycles, which makes the process eco-friendly.
{"title":"POTENTIAL REMOVAL OF CHROMIUM (VI) IONS BY MACADAMIA NUTSHELL FROM STEEL INDUSTRY WASTEWATER","authors":"Josephine Tinega, I. Omosa, S. Letema","doi":"10.30638/eemj.2023.032","DOIUrl":"https://doi.org/10.30638/eemj.2023.032","url":null,"abstract":"Steel industries generate wastewater laden with toxic metals such as Chromium VI(Cr6+) which are classified as carcinogenic and toxic to aquatic life. There is need to meet standards for effluent discharge in order to comply with local and international standards. Chemical precipitation is a commonly applied low-cost technology, but has proven to be unsustainable due to sludge disposal that creates secondary pollution. Devki steel factory located in Ruiru municipality, Kiambu County is a factory that process steel products. Chemical precipitation is applied in Cr6+ treatment at effluent discharged at the factory which exceed international and local effluent discharge standard limits. There is thus need to develop innovative yet affordable technologies for Cr6+. The potential of carbonized macadamia nutshell (CMN) in Cr6+ adsorption as an alternative and eco-friendly technology was evaluated. Carbonization process modified the adsorbent surface properties by increasing the surface area, pore size, carbon content, and Cr6+ removal rate from 40.21-380.64 m2/g, 1.63-8.78 Å, 47.01-57.2% and 71-97% respectively. Maximum Cr6+ adsorption was obtained at a metal concentration 50mg/L, pH 4, contact time of 2 hours, 0.2g dose, and at 30°C. The equilibrium data were well depicted by Langmuir and Freundlich isotherm. Experimental data were well fitted with Pseudo second-order kinetics. Maximum adsorption capacity of 24.3 mg/g and removal efficiency at 97.2% was attained by CMN compared to raw macadamia nutshell (RMN) 17.95 mg/g and 71.6% respectively. The desorption results revealed that the spent adsorbent could be reused for three adsorption cycles, which makes the process eco-friendly.","PeriodicalId":11685,"journal":{"name":"Environmental Engineering and Management Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69520988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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