This study aims to determine the differences in carbon monoxide (CO) and hydrocarbon (HC) exhaustemissions on Honda Revo EFI system motorcycles using premium, pertalite and pertamax fuels. Thelocation of the study was conducted at PT Unilab Perdana, South Jakarta. Quantitative method withexplanatory format the results of the study showed that: The average test results obtained showed thatthe exhaust emissions released in the use of pertamax fuel (CO was 2.53%, and HC was 749 ppm). Theuse of pertalite fuel (CO is 2.62%, and HC is 837 ppm). The use of premium fuel (CO of 2.77%, andHC of 1233 ppm). Thus, within the permissible threshold of LH Decree No. 05 of 2006, namely for 4.5%CO gas and 2000 ppm HC gas with the test method at idle speed (normal engine rotation position whennot pressed by the gas). Chi square test calculation results show that, X2 count (18.95) > X2 table(5.591), so H0 is rejected. This means that there are differences in the proportions in the premium fuelgroup, pertalite and pertamax to the exhaust emissions of CO and HC. Thus, the proposed researchhypothesis has been answered, namely that there are differences in carbon monoxide (CO) and hydrocarbon (HC) exhaust emissions on Honda Revo EFI system motorcycles using premium, pertalite andpertamax fuels.
{"title":"PERBANDINGAN EMISI GAS BUANG ANTARA MOTOR BAHAN BAKAR EMPAT TAK BERBAHAN BAKAR PREMIUM, PERTALITE, DAN PERTAMAX","authors":"Syah Budin, Rofiq Sunaryanto, Charles Situmorang","doi":"10.59134/jtnk.v4i2.509","DOIUrl":"https://doi.org/10.59134/jtnk.v4i2.509","url":null,"abstract":"This study aims to determine the differences in carbon monoxide (CO) and hydrocarbon (HC) exhaustemissions on Honda Revo EFI system motorcycles using premium, pertalite and pertamax fuels. Thelocation of the study was conducted at PT Unilab Perdana, South Jakarta. Quantitative method withexplanatory format the results of the study showed that: The average test results obtained showed thatthe exhaust emissions released in the use of pertamax fuel (CO was 2.53%, and HC was 749 ppm). Theuse of pertalite fuel (CO is 2.62%, and HC is 837 ppm). The use of premium fuel (CO of 2.77%, andHC of 1233 ppm). Thus, within the permissible threshold of LH Decree No. 05 of 2006, namely for 4.5%CO gas and 2000 ppm HC gas with the test method at idle speed (normal engine rotation position whennot pressed by the gas). Chi square test calculation results show that, X2 count (18.95) > X2 table(5.591), so H0 is rejected. This means that there are differences in the proportions in the premium fuelgroup, pertalite and pertamax to the exhaust emissions of CO and HC. Thus, the proposed researchhypothesis has been answered, namely that there are differences in carbon monoxide (CO) and hydrocarbon (HC) exhaust emissions on Honda Revo EFI system motorcycles using premium, pertalite andpertamax fuels.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135834651","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}
Gusvadillah Syarifudin, Ai Silmi, Mohamad Abdul Aziz
The hospital in the Pulomas area has built 2 units of Waste Water Treatment Plant facilities with Anaerobic-Aerobic Biofilter and Extended Aeration systems. The performance of Waste Water Treatment Plants (IPAL) requires comprehensive maintenance and evaluation of Waste Water Treatment Plants (IPAL) so that the waste water treatment system works optimally and reaches the quality standards set by the Government. The results of measurements carried out in Oct-Nov 2021 at the old WWTP show that the pH complies with the quality standards of Minister of Environment and Forestry Regulation P.68 of 2016, namely between 6-9. Meanwhile, the discharge measurement results have exceeded the permitted limit in accordance with the Waste Water Disposal Permit set by DPMPTSP DKI Jakarta, namely 29 m3/day, but the IPAL capacity is still capable of processing the average discharge generated. At the new IPAL with the same testing time, the results of measurements carried out in October-November 2021 showed that the pH was in accordance with the quality standards of Minister of Environment and Forestry Regulation P.68 of 2016, namely between 6-9. Meanwhile, the discharge measurement results are still below the permitted limit in accordance with the Waste Water Disposal Permit set by DPMPTSP DKI Jakarta, namely 20 m3/day. In the Old IPAL the COD parameter exceeds the permitted limit in accordance with the Waste Water Disposal Permit set by the DPMPTSP DKI Jakarta, namely 2.90 kg/day, whereas in the new IPAL the evaluation results can be seen that there is no processing in the pramary treatment, namely a grease trap with processing efficiency. of 0%. From the results of the evaluation that has been carried out, it can be concluded that the average processing efficiency of the Old IPAL is 51.28%. When compared with the standard criteria for a WWTP with an Anaerobic-Aerobic Biofilter system with a processing efficiency level of 90-95%, the performance of the Old WWTP is less than optimal. Meanwhile, the average processing efficiency of the New IPAL is 46.74%. When compared with the standard criteria for a WWTP with an Extended Aeration system, the processing efficiency level is 85-87%, then the performance of the New WWTP is also less than optimal.
{"title":"UJI KINERJA INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) RUMAH SAKIT DI KAYU PUTIH RAYA JAKARTA TIMUR","authors":"Gusvadillah Syarifudin, Ai Silmi, Mohamad Abdul Aziz","doi":"10.59134/jtnk.v6i1.530","DOIUrl":"https://doi.org/10.59134/jtnk.v6i1.530","url":null,"abstract":"The hospital in the Pulomas area has built 2 units of Waste Water Treatment Plant facilities with Anaerobic-Aerobic Biofilter and Extended Aeration systems. The performance of Waste Water Treatment Plants (IPAL) requires comprehensive maintenance and evaluation of Waste Water Treatment Plants (IPAL) so that the waste water treatment system works optimally and reaches the quality standards set by the Government. The results of measurements carried out in Oct-Nov 2021 at the old WWTP show that the pH complies with the quality standards of Minister of Environment and Forestry Regulation P.68 of 2016, namely between 6-9. Meanwhile, the discharge measurement results have exceeded the permitted limit in accordance with the Waste Water Disposal Permit set by DPMPTSP DKI Jakarta, namely 29 m3/day, but the IPAL capacity is still capable of processing the average discharge generated. At the new IPAL with the same testing time, the results of measurements carried out in October-November 2021 showed that the pH was in accordance with the quality standards of Minister of Environment and Forestry Regulation P.68 of 2016, namely between 6-9. Meanwhile, the discharge measurement results are still below the permitted limit in accordance with the Waste Water Disposal Permit set by DPMPTSP DKI Jakarta, namely 20 m3/day. In the Old IPAL the COD parameter exceeds the permitted limit in accordance with the Waste Water Disposal Permit set by the DPMPTSP DKI Jakarta, namely 2.90 kg/day, whereas in the new IPAL the evaluation results can be seen that there is no processing in the pramary treatment, namely a grease trap with processing efficiency. of 0%. From the results of the evaluation that has been carried out, it can be concluded that the average processing efficiency of the Old IPAL is 51.28%. When compared with the standard criteria for a WWTP with an Anaerobic-Aerobic Biofilter system with a processing efficiency level of 90-95%, the performance of the Old WWTP is less than optimal. Meanwhile, the average processing efficiency of the New IPAL is 46.74%. When compared with the standard criteria for a WWTP with an Extended Aeration system, the processing efficiency level is 85-87%, then the performance of the New WWTP is also less than optimal.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135835898","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}
This study aims to reduce organic waste that is still a problem today by making organic waste into liquid smoke as well as materials used using biomass from merbau wood so that it can be used as liquid fertilizer as well as organic pesticides. The parameters measured in this study were using C-Organic, Macro Nutrient (N,P,K), N-Organic and pH acidity levels produced by liquid smoke from merbau wood based on the decree of the Minister of Agriculture No. 261/KPTS/SR.310/M/4/2019. Based on the results of research liquid smoke from merbau wood produced within 5 hours has a different mass weight with a temperature ratio of 250oC and 450oC. The result of utilization of merbau wood waste into liquid smoke is the resulting content value has not been able to meet the standard quality standards that have been set.
{"title":"PEMANFAATAN ASAP CAIR (LIQUID SMOKE) DARI HASIL PEMBAKARAN KAYU MERBAU (Intsia bijuga) SEBAGAI MEDIA PUPUK CAIR","authors":"Errin Aldian","doi":"10.59134/jtnk.v5i1.517","DOIUrl":"https://doi.org/10.59134/jtnk.v5i1.517","url":null,"abstract":"This study aims to reduce organic waste that is still a problem today by making organic waste into liquid smoke as well as materials used using biomass from merbau wood so that it can be used as liquid fertilizer as well as organic pesticides. The parameters measured in this study were using C-Organic, Macro Nutrient (N,P,K), N-Organic and pH acidity levels produced by liquid smoke from merbau wood based on the decree of the Minister of Agriculture No. 261/KPTS/SR.310/M/4/2019. Based on the results of research liquid smoke from merbau wood produced within 5 hours has a different mass weight with a temperature ratio of 250oC and 450oC. The result of utilization of merbau wood waste into liquid smoke is the resulting content value has not been able to meet the standard quality standards that have been set.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830387","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}
Environmental sanitation greatly affects human health if an environment has good sanitation, the health status will increase and vice versa if an environment has poor sanitation, it will cause illness. The purpose of this study was to determine the relationship between personality (Personality) and environmental sanitation facilities, with respondents as many as 97 people of RW 02 slipi. From this survey, it is found that there is a positive and significant relationship between personality and means of environmental sanitation. Based on these findings, it can be concluded, if environmental sanitation facilities are improved, then personality needs to be improved even better.
{"title":"HUBUNGAN ANTARA KEPRIBADIAN (PERSONALITY) DENGAN SARANA SANITASI LINGKUNGAN (Survey pada Masyarakat di Kelurahan Slipi, Kecamatan Palmerah, Jakarta Barat)","authors":"Rohma Isti Fu'adiyah, Yusriani Sapta Dewi","doi":"10.59134/jtnk.v3i2.503","DOIUrl":"https://doi.org/10.59134/jtnk.v3i2.503","url":null,"abstract":"Environmental sanitation greatly affects human health if an environment has good sanitation, the health status will increase and vice versa if an environment has poor sanitation, it will cause illness. The purpose of this study was to determine the relationship between personality (Personality) and environmental sanitation facilities, with respondents as many as 97 people of RW 02 slipi. From this survey, it is found that there is a positive and significant relationship between personality and means of environmental sanitation. Based on these findings, it can be concluded, if environmental sanitation facilities are improved, then personality needs to be improved even better.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833160","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}
One way of managing inorganic waste is to make a waste bank. In principle, a waste bank is a place to save waste that has been sorted according to the type of waste. The purpose of this research is to find out information and an in-depth description of the management of waste bank in West Jakarta Administration City which includes operational technical aspects, financing aspects and aspects of community participation. The method used is qualitative method with descriptive research type. Data analysis using qualitative analysis. The results obtained are waste management by making a waste bank is an effective way to reduce waste generation and make the environment clean especially for densely populated areas.
{"title":"PENGELOLAAN BANK SAMPAH DI KOTA ADMINISTRASI JAKARTA BARAT TAHUN 2018 (Studi Kasus: Kota Administrasi Jakarta Barat, DKI Jakarta)","authors":"Hana Nova Yanti, Hening Darpito, Deni Kurniawan","doi":"10.59134/jtnk.v3i2.499","DOIUrl":"https://doi.org/10.59134/jtnk.v3i2.499","url":null,"abstract":"One way of managing inorganic waste is to make a waste bank. In principle, a waste bank is a place to save waste that has been sorted according to the type of waste. The purpose of this research is to find out information and an in-depth description of the management of waste bank in West Jakarta Administration City which includes operational technical aspects, financing aspects and aspects of community participation. The method used is qualitative method with descriptive research type. Data analysis using qualitative analysis. The results obtained are waste management by making a waste bank is an effective way to reduce waste generation and make the environment clean especially for densely populated areas.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833332","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}
The majority of RW 07 residents use groundwater daily. While flood and still water often happens and the inadequately of wastewater management are one of many problems RW 07 residents faced. The purpose of this research are to be able to identify sanitation condition in residential area and identify the bacteriological quality of groundwater in West Tebet Urban Village, and analyze the relationship between those variable. Total coliform test of groundwater procured from the local well using Most Probable Number (MPN) method. This research showed that the amount of total Coliform ranging from 3/ 100 ml to >240.000/ 100 ml and as much as 83% of groundwater in local wells have surpassed the amount Total Coliform standard which Indonesian Health Ministry regulated in No. 416/ Menkes/ IX/ 1990. Other than that, the result showed that there is no relation between septic tank and drainage distance also well depth to the amount of Total Coliform.
{"title":"ANALISIS KONDISI SANITASI LINGKUNGAN TERKAIT PENCEMARAN TOTAL COLIFORM TERHADAP AIR TANAH DI KELURAHAN TEBET BARAT","authors":"Endah Yunari N, Soleha Ismi Azhom","doi":"10.59134/jtnk.v2i2.493","DOIUrl":"https://doi.org/10.59134/jtnk.v2i2.493","url":null,"abstract":"The majority of RW 07 residents use groundwater daily. While flood and still water often happens and the inadequately of wastewater management are one of many problems RW 07 residents faced. The purpose of this research are to be able to identify sanitation condition in residential area and identify the bacteriological quality of groundwater in West Tebet Urban Village, and analyze the relationship between those variable. Total coliform test of groundwater procured from the local well using Most Probable Number (MPN) method. This research showed that the amount of total Coliform ranging from 3/ 100 ml to >240.000/ 100 ml and as much as 83% of groundwater in local wells have surpassed the amount Total Coliform standard which Indonesian Health Ministry regulated in No. 416/ Menkes/ IX/ 1990. Other than that, the result showed that there is no relation between septic tank and drainage distance also well depth to the amount of Total Coliform.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135791665","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}
PT. Berca Buana Sakti Indonesia is a multidisciplinary contractor with experience and resources who provide the best service in the field of engineering and construction diversity. The purpose of this study is to analyze potential hazards, assess risks, control risks in the Java One Power Cilamaya Hydropower Project. The development process carried out by PT. Berca Buana Sakti has the possibility of high hazards and risks in the project area that causes work accidents. Therefore, the potential danger should be analyzed with one of the risk analysis methods, namely HIRADC (Hazard Identification Risk Assessment and Determining Control). The HIRADC method is used to analyze existing hazards, determine risk assessments and group each hazard based on the level of risk. From the analysis of assessment of K3 risk known risk rank, there are 44 types of low risk risk, 21 types of medium risk risk and 0 types of high risk. HIRADC method can reduce the potential for work accidents by conducting management of a series of activities carried out. PT. Berca Buana Sakti implements elimination control, engineering modification, and personal protective equipment (PPE) to reduce accidents and risk management and also has excellent results in knowledge and behavior related to occupational safety and health and good on knowledge of HIRADC.
PT. Berca Buana Sakti Indonesia是一家拥有丰富经验和资源的多学科承包商，在工程和建筑多样性领域提供最佳服务。本研究的目的是分析爪哇一动力奇拉玛亚水电项目的潜在危害，评估风险，控制风险。PT. Berca Buana Sakti进行的开发过程在项目区域有可能发生高危害和风险，导致工作事故。因此，应采用风险分析方法之一HIRADC (Hazard Identification risk Assessment and determination Control)对潜在危险进行分析。HIRADC方法用于分析现有的危害，确定风险评估，并根据风险水平对每种危害进行分组。从K3风险已知风险等级评价分析，低风险44种，中等风险21种，高风险0种。HIRADC方法通过对一系列活动进行管理，可以减少发生工作事故的可能性。PT. Berca Buana Sakti实施消除控制、工程改造和个人防护装备(PPE)，以减少事故和风险管理，在职业安全与健康相关的知识和行为方面也取得了优异的成绩，并对HIRADC有良好的了解。
{"title":"MANAJEMEN RISIKO BEKERJA DI KETINGGIAN PROYEK PLTGU JAWA SATU POWER CILAMAYA DENGAN METODE HIRADC (HAZARD IDENTIFICATION RISK ASSESSMENT AND DETERMINING CONTROL)","authors":"Fauzan Fawwazillah","doi":"10.59134/jtnk.v5i1.513","DOIUrl":"https://doi.org/10.59134/jtnk.v5i1.513","url":null,"abstract":"PT. Berca Buana Sakti Indonesia is a multidisciplinary contractor with experience and resources who provide the best service in the field of engineering and construction diversity. The purpose of this study is to analyze potential hazards, assess risks, control risks in the Java One Power Cilamaya Hydropower Project. The development process carried out by PT. Berca Buana Sakti has the possibility of high hazards and risks in the project area that causes work accidents. Therefore, the potential danger should be analyzed with one of the risk analysis methods, namely HIRADC (Hazard Identification Risk Assessment and Determining Control). The HIRADC method is used to analyze existing hazards, determine risk assessments and group each hazard based on the level of risk. From the analysis of assessment of K3 risk known risk rank, there are 44 types of low risk risk, 21 types of medium risk risk and 0 types of high risk. HIRADC method can reduce the potential for work accidents by conducting management of a series of activities carried out. PT. Berca Buana Sakti implements elimination control, engineering modification, and personal protective equipment (PPE) to reduce accidents and risk management and also has excellent results in knowledge and behavior related to occupational safety and health and good on knowledge of HIRADC.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830243","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}
Muhamad Ridwan, Charles Situmorang, Hening Darpito
One of the programs of the Padang city government in reducing air pollution is with Car FreeDay program which is held every Sunday which is carried out in front of Mesjid Raya Sumatera Barang,Jalan Khatib Sulaiman, Padang City. In this research was intended to determine the effect of the CarFree Day program on ambient air quality with the parameters: NO2 and SO2. The methodology of thisresearch is to carry out direct measurements using an impinger to measure NO2 and SO2.Measurements were carried out for 2 weeks (Non Car Free Day and Car Free Day), then air qualityclassification was carried out using the Air Pollution Standard Index approach (Pendekatan IndeksStandar Pencemraran Udara, ISPU). The results showed that on Car Free Day (Sunday) for parametersof NO2 reduced NO2 values in the air from 43.25 μg/Nm3 to 7.5 μg/Nm3 and for parameters of SO2 onCar Free Day (Sunday) reduced SO2 values from 47,916 μg/Nm3 to 25.5 μg/Nm3 and for theclassification of air quality using Air Pollution Standard Index approach (Pendekatan Indeks StandarPencemraran Udara, ISPU) shows the air quality in front of the Masjid Raya Sumatera Barat, JalanKhatib Sulaiman, Padang City is good.
{"title":"PENGARUH CAR FREE DAY TERHADAP PENGGOLONGAN KUALITAS UDARA PARAMETER SO2 DAN NO2 DI DEPAN MESJID RAYA SUMATERA BARAT KOTA PADANG","authors":"Muhamad Ridwan, Charles Situmorang, Hening Darpito","doi":"10.59134/jtnk.v4i2.505","DOIUrl":"https://doi.org/10.59134/jtnk.v4i2.505","url":null,"abstract":"One of the programs of the Padang city government in reducing air pollution is with Car FreeDay program which is held every Sunday which is carried out in front of Mesjid Raya Sumatera Barang,Jalan Khatib Sulaiman, Padang City. In this research was intended to determine the effect of the CarFree Day program on ambient air quality with the parameters: NO2 and SO2. The methodology of thisresearch is to carry out direct measurements using an impinger to measure NO2 and SO2.Measurements were carried out for 2 weeks (Non Car Free Day and Car Free Day), then air qualityclassification was carried out using the Air Pollution Standard Index approach (Pendekatan IndeksStandar Pencemraran Udara, ISPU). The results showed that on Car Free Day (Sunday) for parametersof NO2 reduced NO2 values in the air from 43.25 μg/Nm3 to 7.5 μg/Nm3 and for parameters of SO2 onCar Free Day (Sunday) reduced SO2 values from 47,916 μg/Nm3 to 25.5 μg/Nm3 and for theclassification of air quality using Air Pollution Standard Index approach (Pendekatan Indeks StandarPencemraran Udara, ISPU) shows the air quality in front of the Masjid Raya Sumatera Barat, JalanKhatib Sulaiman, Padang City is good.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833197","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}
Industrial development increases pollution in the environment, while the results of industrial wastedisposal generally produce waste containing heavy metals, one of which is mercury (Hg). Eggshell iswaste originating from households and the food industry which is made from eggs and has the potentialas an adsorbent to absorb mercury ions (Hg2 +). In this study, egg shells were prepared with twotreatments: egg shell adsorbent and with eggshells activated by 30% NaOH after heating in a furnaceat 600 oC for 2 hours then mashed with a particle size of 200 mesh. The adsorbent is then used toabsorb Hg2 + ions from the Hg (NO3) 2 compound. H2O as much as 0.01 ppm with the activatedeggshell and eggshell adsorbent weight of 2 grams each, where the adsorption process is carried outwith 2 contact times, namely 60 minutes and 120 minutes and tested with a Mercury Analyzer. Theadsorption process obtained, the optimum at the contact time of 120 minutes and the eggshell adsorbenttreatment with an average percentage of 93.931%.
{"title":"EFEKTIVITAS CANGKANG TELUR AYAM NEGERI (Gallus gallus domesticus) SEBAGAI ADSORBEN TERHADAP DAYA JERAP LOGAM BERAT MERKURI (Hg2+)","authors":"Fajar Muhammad, Yusriani Sapta dewi","doi":"10.59134/jtnk.v4i2.507","DOIUrl":"https://doi.org/10.59134/jtnk.v4i2.507","url":null,"abstract":"Industrial development increases pollution in the environment, while the results of industrial wastedisposal generally produce waste containing heavy metals, one of which is mercury (Hg). Eggshell iswaste originating from households and the food industry which is made from eggs and has the potentialas an adsorbent to absorb mercury ions (Hg2 +). In this study, egg shells were prepared with twotreatments: egg shell adsorbent and with eggshells activated by 30% NaOH after heating in a furnaceat 600 oC for 2 hours then mashed with a particle size of 200 mesh. The adsorbent is then used toabsorb Hg2 + ions from the Hg (NO3) 2 compound. H2O as much as 0.01 ppm with the activatedeggshell and eggshell adsorbent weight of 2 grams each, where the adsorption process is carried outwith 2 contact times, namely 60 minutes and 120 minutes and tested with a Mercury Analyzer. Theadsorption process obtained, the optimum at the contact time of 120 minutes and the eggshell adsorbenttreatment with an average percentage of 93.931%.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833551","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}
Waste water containing lead (Pb) is very dangerous for the survival of humans and other living things. The researchers' goal in this case is to reduce the metal content of lead (Pb) contained in the water. The method used is the immersion system using banana peels kapok. The results obtained banana skin can absorb Pb content of waste water with the level of effectiveness of 75.64% at 5 grams a day to three, the effectiveness of 82.28% on addition of 10 grams of a banana skin for 3 days and the effectiveness of Pb 85.66% decline in the addition of 15 grams of a banana skin for 3 days. It is the addition of a banana skin kapok provide significant influence on the effectiveness of a decrease in metal content of lead (Pb) in water.
含铅废水对人类和其他生物的生存是非常危险的。在这种情况下，研究人员的目标是减少水中铅(Pb)的金属含量。使用的方法是用香蕉皮木棉浸泡系统。结果表明，在每天5 g ~ 3 g时，香蕉皮对废水中Pb的吸收率为75.64%，添加10 g香蕉皮3 d时，吸收率为82.28%，添加15 g香蕉皮3 d时，Pb的吸收率下降85.66%。结果表明，香蕉皮木棉的添加对降低水中铅(Pb)金属含量的有效性有显著影响。
{"title":"EFEKTIVITAS KULIT PISANG KEPOK (Musa acuminat a balbisiana Colla) DALAM MENGUBAH KADAR LOGAM TIMBAL (Pb)","authors":"Nugroho Dwi Kuncoro","doi":"10.59134/jtnk.v3i2.501","DOIUrl":"https://doi.org/10.59134/jtnk.v3i2.501","url":null,"abstract":"Waste water containing lead (Pb) is very dangerous for the survival of humans and other living things. The researchers' goal in this case is to reduce the metal content of lead (Pb) contained in the water. The method used is the immersion system using banana peels kapok. The results obtained banana skin can absorb Pb content of waste water with the level of effectiveness of 75.64% at 5 grams a day to three, the effectiveness of 82.28% on addition of 10 grams of a banana skin for 3 days and the effectiveness of Pb 85.66% decline in the addition of 15 grams of a banana skin for 3 days. It is the addition of a banana skin kapok provide significant influence on the effectiveness of a decrease in metal content of lead (Pb) in water.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833741","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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