This study aims to determine and analyze the safety culture (knowledge, attitude towards regulations, personality, availability of equipment, training, and motivation) that affect the compliance with the use of Personal Protective Equipment (PPE) of workers at the Water Laboratory of PT Unilab Perdana, South Jakarta. The research method used is quantitative with an explanatory format. The population of this study were 17 workers in the water laboratory of PT Unilab Perdana, South Jakarta. The sampling technique is a saturated sample, that is, all members of the population are used as samples. The research sample was 17 workers in the water laboratory of PT Unilab Perdana, South Jakarta. The research data collection technique used a questionnaire on compliance with the use of PPE on workers as the dependent variable and knowledge, attitude towards regulations, personality, availability of equipment, training, motivation as independent variables. Data analysis used simple correlation regression, t test, and coefficient of determination. The results showed that safety culture had a positive and significant effect on compliance with the use of PPE. The results of the t-test for tcount are greater than ttable, namely 3.493 > 2.109 at = 0.05 and 2.898 at = 0.01. This means that the correlation coefficient of safety culture on compliance with the use of PPE is significant. The coefficient of determination of the influence of safety culture on compliance with the use of PPE is obtained from the R square value of 0.449. So 44.9% of the variance in safety culture can be explained by the variable of compliance with the use of PPE. From the results of hypothesis testing, the findings show that safety culture has a positive and significant effect on compliance with the use of PPE. This means, the higher the safety culture, the higher the compliance with the use of PPE. Based on these findings, it can be concluded, if you want to improve compliance with the use of PPE, then the safety culture needs to be improved as well.
{"title":"ANALISIS PENGARUH BUDAYA KESELAMATAN KERJA TERHADAP KEPATUHAN PENGGUNAAN ALAT PELINDUNG DIRI (APD) PEKERJA DI BAGIAN LABORATORIUM AIR PT UNILAB PERDANA JAKARTA SELATAN","authors":"Ài Silmi, Deni Kurniawan","doi":"10.59134/jtnk.v7i01.321","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.321","url":null,"abstract":"This study aims to determine and analyze the safety culture (knowledge, attitude towards regulations, personality, availability of equipment, training, and motivation) that affect the compliance with the use of Personal Protective Equipment (PPE) of workers at the Water Laboratory of PT Unilab Perdana, South Jakarta. The research method used is quantitative with an explanatory format. The population of this study were 17 workers in the water laboratory of PT Unilab Perdana, South Jakarta. The sampling technique is a saturated sample, that is, all members of the population are used as samples. The research sample was 17 workers in the water laboratory of PT Unilab Perdana, South Jakarta. The research data collection technique used a questionnaire on compliance with the use of PPE on workers as the dependent variable and knowledge, attitude towards regulations, personality, availability of equipment, training, motivation as independent variables. Data analysis used simple correlation regression, t test, and coefficient of determination. The results showed that safety culture had a positive and significant effect on compliance with the use of PPE. The results of the t-test for tcount are greater than ttable, namely 3.493 > 2.109 at = 0.05 and 2.898 at = 0.01. This means that the correlation coefficient of safety culture on compliance with the use of PPE is significant. The coefficient of determination of the influence of safety culture on compliance with the use of PPE is obtained from the R square value of 0.449. So 44.9% of the variance in safety culture can be explained by the variable of compliance with the use of PPE. From the results of hypothesis testing, the findings show that safety culture has a positive and significant effect on compliance with the use of PPE. This means, the higher the safety culture, the higher the compliance with the use of PPE. Based on these findings, it can be concluded, if you want to improve compliance with the use of PPE, then the safety culture needs to be improved as well.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129921817","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 development of the clothes washing or laundry service industry continues to develop in residential areas increasing every year. This increases the amount of waste generated. So that it has a direct impact on the environment if it is not properly managed. Many contaminants are contained in laundry waste, including surfactants and phosphates which have the potential to have a damaging effect on aquatic ecosystems. In order to control pollution, waste water treatment is necessary. This study aims to eliminate the efficiency of the influence of variations in alum doses and variations in lime doses with the coagulation flocculation process in surfactant and phosphate levels only in washing waste.This study used coagulation and flocculation methods using 5% lime and 5% alum coagulants with alum doses of 5cc, 10cc, 15cc, 20cc and lime 2cc, 4cc, 6cc, 8cc. Fast stirring time of 1 minute at 100rpm, slow stirring 30 minutes at 20rpm with a settling time of 30 minutes. Based on the research analysis for the coagulation-flocculation treatment in laundry wastewater treatment using alum and lime coagulants is better at reducing the phosphate parameter having an efficiency value of 88.44% while the surfactant parameter has an efficiency value of 76.89%. Lime doses of 20cc alum and 8cc lime have a very significant effect on reducing surfactant and phosphate parameters below established quality standards and do not pollute the environment.
{"title":"EFEKTIVITAS PENGGUNAAN KOAGULAN TAWAS DAN KAPUR DALAM MEREDUKSI SURFAKTAN DAN FOSFAT PADA LIMBAH LAUNDRY","authors":"Yusriani Sapta dewi","doi":"10.59134/jtnk.v7i01.316","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.316","url":null,"abstract":"The development of the clothes washing or laundry service industry continues to develop in residential areas increasing every year. This increases the amount of waste generated. So that it has a direct impact on the environment if it is not properly managed. Many contaminants are contained in laundry waste, including surfactants and phosphates which have the potential to have a damaging effect on aquatic ecosystems. In order to control pollution, waste water treatment is necessary. This study aims to eliminate the efficiency of the influence of variations in alum doses and variations in lime doses with the coagulation flocculation process in surfactant and phosphate levels only in washing waste.This study used coagulation and flocculation methods using 5% lime and 5% alum coagulants with alum doses of 5cc, 10cc, 15cc, 20cc and lime 2cc, 4cc, 6cc, 8cc. Fast stirring time of 1 minute at 100rpm, slow stirring 30 minutes at 20rpm with a settling time of 30 minutes. Based on the research analysis for the coagulation-flocculation treatment in laundry wastewater treatment using alum and lime coagulants is better at reducing the phosphate parameter having an efficiency value of 88.44% while the surfactant parameter has an efficiency value of 76.89%. Lime doses of 20cc alum and 8cc lime have a very significant effect on reducing surfactant and phosphate parameters below established quality standards and do not pollute the environment.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131685225","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 liquid waste in liquid form resulting from tempe production can pollute the environment which is detrimental to the surrounding community. According to the World Health Organization (WHO), waste is the result of human activities that are useless, not used or something that is thrown into the environment. Tempe industrial wastewater is very disturbing to waters if it is not managed properly before being discharged into water bodies because this waste causes an unpleasant odor and triggers the growth of various pathogenic bacteria. If the waste is directly disposed of into the waters, in a relatively short time it will cause a foul odor from H2S gas or ammonia as a result of the crying of the organic waste. The existence of a decomposition process will cause an unpleasant odor (Wiryani Erry, 2012). The process of making tempeh in each of its stages uses an average of water for washing, soaking, and boiling the soybeans. This means that quite a lot of liquid waste is produced. This study aims to analyze the content of soybean liquid waste to reduce BOD levels to make it more environmentally friendly. With the aim of reducing BOD levels, this study will use the Pseudomonas Putida bacterium as a waste decomposer, bioreceptors and microelectrodes as practical BOD measuring devices. The sample used is boiled liquid waste from soybean skin in the process of making tempe at one of the tempe entrepreneurs near the Satya Negara University of Indonesia. The sample was then tested to see the content of DO, BOD, temperature, pH, TDS, and total bacteria. The results of research on soybean liquid waste showed that the content of BOD and TDS exceeded the quality standards set by the Regulation of the State Minister for the Environment 03 of 2010 concerning the Environment.
在tempe生产中产生的液态工业废液会污染环境，对周围社区有害。根据世界卫生组织(世卫组织)的说法，废物是人类活动产生的无用的、未使用的或被扔进环境中的东西。坦佩市的工业废水如果在排入水体之前处理不当，会对水体造成很大的干扰，因为这种废水会产生难闻的气味，并引发各种致病菌的生长。如果直接将废物排入水中，在较短的时间内，由于有机废物的哭泣，会产生H2S气体或氨的恶臭。分解过程的存在会引起难闻的气味(Wiryani Erry, 2012)。豆豉的制作过程在每个阶段都要使用平均的水来清洗、浸泡和煮沸大豆。这意味着会产生相当多的废液。本研究旨在分析大豆废液的含量，以降低BOD水平，使其更加环保。以降低BOD水平为目标，本研究将利用恶臭假单胞菌作为废物分解者，利用生物受体和微电极作为实际的BOD测量装置。所使用的样品是在印尼萨提亚内加拉大学(Satya Negara University of Indonesia)附近的一家豆皮企业制作豆皮过程中煮出的废液。然后对样品进行测试，以查看DO, BOD，温度，pH, TDS和总细菌的含量。对大豆废液的研究结果表明，废液中BOD和TDS的含量均超过了国家环境部2010年第03号《环境条例》规定的质量标准。
{"title":"PENGARUH WAKTU AERASI TERHADAP LIMBAH KEDELAI MENGGUNAKAN BAKTERI Pseudomonas Putida","authors":"Rofiq Sunaryanto, N. Hayati","doi":"10.59134/jtnk.v7i01.319","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.319","url":null,"abstract":"Industrial liquid waste in liquid form resulting from tempe production can pollute the environment which is detrimental to the surrounding community. According to the World Health Organization (WHO), waste is the result of human activities that are useless, not used or something that is thrown into the environment. Tempe industrial wastewater is very disturbing to waters if it is not managed properly before being discharged into water bodies because this waste causes an unpleasant odor and triggers the growth of various pathogenic bacteria. If the waste is directly disposed of into the waters, in a relatively short time it will cause a foul odor from H2S gas or ammonia as a result of the crying of the organic waste. The existence of a decomposition process will cause an unpleasant odor (Wiryani Erry, 2012). The process of making tempeh in each of its stages uses an average of water for washing, soaking, and boiling the soybeans. This means that quite a lot of liquid waste is produced. This study aims to analyze the content of soybean liquid waste to reduce BOD levels to make it more environmentally friendly. With the aim of reducing BOD levels, this study will use the Pseudomonas Putida bacterium as a waste decomposer, bioreceptors and microelectrodes as practical BOD measuring devices. The sample used is boiled liquid waste from soybean skin in the process of making tempe at one of the tempe entrepreneurs near the Satya Negara University of Indonesia. The sample was then tested to see the content of DO, BOD, temperature, pH, TDS, and total bacteria. The results of research on soybean liquid waste showed that the content of BOD and TDS exceeded the quality standards set by the Regulation of the State Minister for the Environment 03 of 2010 concerning the Environment.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133481936","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 research in this thesis is motivated by the large amount of domestic solid waste at PT. X, especially in the warehouse and office areas, there is also some solid waste at PT. X has not been managed effectively is the reason PT. X implements green house and office programs as an effort to minimize existing domestic solid waste. The formulation of the problem in this study is how the effect of implementing green warehouse and office programs in minimizing domestic solid waste (garbage). While the purpose of this study is to determine the application of the werehouse and office programs to minimize domestic solid waste (garbage generation) and to find out the responses of employees and janitors regarding green warehouse and office program activities in minimizing domestic solid waste (garbage) at PT. X.The research approach used in this study is a quantitative and qualitative approach. Data collection techniques using primary data and secondary data. While the population used is all solid waste generated in the warehouse area and office space of PT. X every day then in taking samples using stratified sample techniques and simple random sampling. The results of the study show that the application of minimization of domestic solid waste (garbage generation) is carried out by PT. X with green warehouse and office programs starting from different containers with the provisions of SNI 19-3983-1995, solid waste collection is carried out routinely, namely in the afternoon, solid waste transfers from 15.00 to 17.00 and solid waste treatment is disposed of to the area. Area by carrying out waste bank activities. The application of domestic solid waste minimization at PT. X is already running but not in accordance with existing regulations. Green warehouse and office programs in the minimization of domestic solid waste (garbage) starting from storage in the office space area according to employees and cleaning staff produce organic solid waste and paper. In the office space area, which is in room 2 by 40%, in room 3 by 20% and in room 4 by 60%, while in the warehouse area, which is in the admin room by 20%, the relocation has been implemented well by the cleaners.
{"title":"ANALISIS MINIMALISASI LIMBAH PADAT DOMESTIK DENGAN PENERAPAN PROGRAM GREEN WAREHOUSE DAN OFFICE","authors":"Nur Hayari","doi":"10.59134/jtnk.v7i01.317","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.317","url":null,"abstract":"The research in this thesis is motivated by the large amount of domestic solid waste at PT. X, especially in the warehouse and office areas, there is also some solid waste at PT. X has not been managed effectively is the reason PT. X implements green house and office programs as an effort to minimize existing domestic solid waste. The formulation of the problem in this study is how the effect of implementing green warehouse and office programs in minimizing domestic solid waste (garbage). While the purpose of this study is to determine the application of the werehouse and office programs to minimize domestic solid waste (garbage generation) and to find out the responses of employees and janitors regarding green warehouse and office program activities in minimizing domestic solid waste (garbage) at PT. X.The research approach used in this study is a quantitative and qualitative approach. Data collection techniques using primary data and secondary data. While the population used is all solid waste generated in the warehouse area and office space of PT. X every day then in taking samples using stratified sample techniques and simple random sampling. The results of the study show that the application of minimization of domestic solid waste (garbage generation) is carried out by PT. X with green warehouse and office programs starting from different containers with the provisions of SNI 19-3983-1995, solid waste collection is carried out routinely, namely in the afternoon, solid waste transfers from 15.00 to 17.00 and solid waste treatment is disposed of to the area. Area by carrying out waste bank activities. The application of domestic solid waste minimization at PT. X is already running but not in accordance with existing regulations. Green warehouse and office programs in the minimization of domestic solid waste (garbage) starting from storage in the office space area according to employees and cleaning staff produce organic solid waste and paper. In the office space area, which is in room 2 by 40%, in room 3 by 20% and in room 4 by 60%, while in the warehouse area, which is in the admin room by 20%, the relocation has been implemented well by the cleaners.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123149333","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}
Clean water is a basic need for humans. Clean water that meets health requirement and is suitable for use as clean water can be determined by physical, chemical and biological water quality requirement determined by Minister of Health Regulation Number 32 of 2017 concering Environmental Health Quality Standards and Water Health Requirement for Sanitation, Swimming Pools, Solus Per Aqua and public baths which say the level of iron (Fe) in clean water is 1 mg/l. Rice husk is a by-product of the rice milling process which has been a waste that is rarely used and has the potential as an adsorbent for iron (Fe) levels. Ini this study, rice husks were prepared with two treaments without activation and with 30% NaOH activation after baing heated in a furnace at 400oC for 1 hour. The adsorbent was then tasted with groundwater containing high levels of iron (Fe) with an adsorbent weight of 5 grams, where the adsoption process was carried ot with contact time, namely 2 hours and 4 hours. The optimum adsorption process was obtained at contact time of 4 hours and with an activation treatment with average percentage of 70,644%.
{"title":"EFEKTIVITAS PENGGUNAAN ABU SEKAM PADI (Oryza sativa) SEBAGAI ADSORBEN TERHADAP KADAR BESI ( Fe ) PADA PENGOLAHAN AIR BAKU","authors":"Yusriani Sapta Dewi, Ai Silmi","doi":"10.59134/jtnk.v7i01.320","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.320","url":null,"abstract":"Clean water is a basic need for humans. Clean water that meets health requirement and is suitable for use as clean water can be determined by physical, chemical and biological water quality requirement determined by Minister of Health Regulation Number 32 of 2017 concering Environmental Health Quality Standards and Water Health Requirement for Sanitation, Swimming Pools, Solus Per Aqua and public baths which say the level of iron (Fe) in clean water is 1 mg/l. Rice husk is a by-product of the rice milling process which has been a waste that is rarely used and has the potential as an adsorbent for iron (Fe) levels. Ini this study, rice husks were prepared with two treaments without activation and with 30% NaOH activation after baing heated in a furnace at 400oC for 1 hour. The adsorbent was then tasted with groundwater containing high levels of iron (Fe) with an adsorbent weight of 5 grams, where the adsoption process was carried ot with contact time, namely 2 hours and 4 hours. The optimum adsorption process was obtained at contact time of 4 hours and with an activation treatment with average percentage of 70,644%.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131696713","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}
Today liquid waste is very worrying because it easily mixes with moving water, for example in rivers. The use of detergents on a large scale is a form of environmental pollution originating from residential areas. The level of pollution will be even more dangerous if left too long. The impact that will be felt is the occurrence of pollution which is difficult to overcome and the disruption of the biota ecosystem in the waters and its surroundings. Therefore it is necessary to manage liquid waste, one of which is the phytoremediation system using the water hyacinth plant (Eichhornia crassipes). The purpose of this study was to determine the effect of water hyacinth with a phytoremediation system to reduce levels of phosphate compounds in laundry waste. The method applied is laboratory experimental which is an experiment conducted to be able to see the effect of the variables that are the object of research with a completely randomized design (CRD) for the experiment. The results obtained in this study were a decrease in phosphate levels of 0.607 mg/L (37.7%) at an interval of 12 days. Data analysis used a test of variance (ANOVA) with a significance value of 0.000, which means it is less than the sig value. < α = 0.05 that there is an influence on the variation in treatment time on the phosphate levels contained in household laundry waste.
{"title":"FITOREMEDIASI TANAMAN ECENG GONDOK (Eichhornia crassipes) PADA VARIASI PARAMETER FOSFAT PADA LIMBAH LAUNDRY","authors":"Ai Silmi, Yusriani Sapta Dewi","doi":"10.59134/jtnk.v7i01.318","DOIUrl":"https://doi.org/10.59134/jtnk.v7i01.318","url":null,"abstract":"Today liquid waste is very worrying because it easily mixes with moving water, for example in rivers. The use of detergents on a large scale is a form of environmental pollution originating from residential areas. The level of pollution will be even more dangerous if left too long. The impact that will be felt is the occurrence of pollution which is difficult to overcome and the disruption of the biota ecosystem in the waters and its surroundings. Therefore it is necessary to manage liquid waste, one of which is the phytoremediation system using the water hyacinth plant (Eichhornia crassipes). The purpose of this study was to determine the effect of water hyacinth with a phytoremediation system to reduce levels of phosphate compounds in laundry waste. The method applied is laboratory experimental which is an experiment conducted to be able to see the effect of the variables that are the object of research with a completely randomized design (CRD) for the experiment. The results obtained in this study were a decrease in phosphate levels of 0.607 mg/L (37.7%) at an interval of 12 days. Data analysis used a test of variance (ANOVA) with a significance value of 0.000, which means it is less than the sig value. < α = 0.05 that there is an influence on the variation in treatment time on the phosphate levels contained in household laundry waste.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"264 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133679117","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 research was conducted to determine the characteristics of good activated carbon from the shell of a walnut (Kanarium ovatum). The purpose of this study was to treat tempe industrial wastewater using activated carbon from walnut shells (canarium ovatum). Tempe industrial wastewater treatment discharge 60 minutes and a dose of 14.4mg PH measurement results after processing from acid to neutral as well as in the BOD and TSS testing after processing using activated carbon with a dose of 14.4mg with a discharge of 30 minutes the test results decreased. The results showed that activated carbon from walnut shells (canarium ovatum) can be used in treating tempeh industrial wastewater. Activated carbon from walnut shells (canarium ovatum) can be used to treat tempe industrial wastewater.
{"title":"EFEKTIVITAS CANGKANG BUAH KENARI (Kanarium ovatum) SEBAGAI KARBON AKTIF DALAM MENGOLAH AIR LIMBAH INDUSTRI TEMPE UNTUK MENURUNKAN BOD, TSS DAN MENETRALKAN pH","authors":"Elvianto Zagoto, Charles Situmorang","doi":"10.59134/jtnk.v6i02.172","DOIUrl":"https://doi.org/10.59134/jtnk.v6i02.172","url":null,"abstract":"This research was conducted to determine the characteristics of good activated carbon from the shell of a walnut (Kanarium ovatum). The purpose of this study was to treat tempe industrial wastewater using activated carbon from walnut shells (canarium ovatum). Tempe industrial wastewater treatment discharge 60 minutes and a dose of 14.4mg PH measurement results after processing from acid to neutral as well as in the BOD and TSS testing after processing using activated carbon with a dose of 14.4mg with a discharge of 30 minutes the test results decreased. The results showed that activated carbon from walnut shells (canarium ovatum) can be used in treating tempeh industrial wastewater. Activated carbon from walnut shells (canarium ovatum) can be used to treat tempe industrial wastewater.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126203005","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}
Calvin Ronaldo Lekatompessy, Rofiq Sunaryanto, Nurhayati
Activated carbon is a material that contains high carbon elements and has a porous solid. The material used in this research is a nutmeg shell. The purpose of this study was to determine the effectiveness of activated charcoal from the shell of nutmeg (Myristica fragrans) as activated carbon in treating domestic wastewater. The variables studied to compare the effect of the wastewater absorption process are the concentration of the chemical NaOH 15% with temperature variations of 400ºC, 450ºC, and 500ºC. The best activation results were obtained at a temperature of 450ºC with a water content of 4.22%, an ash content of 10.24%, and iodinecontent of 577,395 mg/g. Activated charcoal parameters refer to SNI 06-3730-1995 regarding the quality standard requirements for activated charcoal. Wastewater management by activated charcoal from the shell of nutmeg (Myristica fragrans) with a concentration of 10, 15, 20 grams of activated charcoal. The best results were obtained by the concentration of activated charcoal 20 grams with a pH value of 9.0, TSS 0.663 mg/L, BOD 7.3 mg/L. For pH parameters, the effectiveness of activated charcoal is less than the maximum, and it does not meet quality standards.
{"title":"EFEKTIVITAS CANGKANG BUAH PALA (Myristica fragrans) SEBAGAI KARBON AKTIF DALAM PENGOLAHAN AIR LIMBAH DOMESTIK","authors":"Calvin Ronaldo Lekatompessy, Rofiq Sunaryanto, Nurhayati","doi":"10.59134/jtnk.v6i02.173","DOIUrl":"https://doi.org/10.59134/jtnk.v6i02.173","url":null,"abstract":"Activated carbon is a material that contains high carbon elements and has a porous solid. The material used in this research is a nutmeg shell. The purpose of this study was to determine the effectiveness of activated charcoal from the shell of nutmeg (Myristica fragrans) as activated carbon in treating domestic wastewater. The variables studied to compare the effect of the wastewater absorption process are the concentration of the chemical NaOH 15% with temperature variations of 400ºC, 450ºC, and 500ºC. The best activation results were obtained at a temperature of 450ºC with a water content of 4.22%, an ash content of 10.24%, and iodinecontent of 577,395 mg/g. Activated charcoal parameters refer to SNI 06-3730-1995 regarding the quality standard requirements for activated charcoal. Wastewater management by activated charcoal from the shell of nutmeg (Myristica fragrans) with a concentration of 10, 15, 20 grams of activated charcoal. The best results were obtained by the concentration of activated charcoal 20 grams with a pH value of 9.0, TSS 0.663 mg/L, BOD 7.3 mg/L. For pH parameters, the effectiveness of activated charcoal is less than the maximum, and it does not meet quality standards.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133862585","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 this day and age that waste is a problem serious enough, so many efforts to reduce poverty by means of reducing, recycling and destroy it. The producing a great variety of waste in the form of of liquids, solid and gas. Is not a good medical management waste could cause problem with health care and the environment. The purpose of this study was to determine the relationship of knowledgeand attitudes of health workers with medical waste management at community health centerSelayo. The research is of research the quantitative cross sectional. The population in this research is all health workers of community health center Selayo totaled 60 people. The sample technique used is the total sampling. The sample in this research is all health workers medical waste of 60 people.The analysis used in this research use software IBM SPSS Statistics Version 26. The result showed a value of knowledge of health workers (X1) -value =0,000 < significance (Y)= 0,05 which means there is a relationship between knowledge of health workers with medical waste management at community health center Selayo an d a value of attitudes of health workers (X2) -value =0,003
{"title":"HUBUNGAN ANTARA PENGETAHUAN DAN SIKAP TENAGA KESEHATAN TERHADAP PENGELOLAAN LIMBAH MEDIS DI PUSKESMAS SELAYO, SUMATERA BARAT","authors":"Kartika Wulandari, Yusriani Sapta Dewi","doi":"10.59134/jtnk.v6i02.170","DOIUrl":"https://doi.org/10.59134/jtnk.v6i02.170","url":null,"abstract":"In this day and age that waste is a problem serious enough, so many efforts to reduce poverty by means of reducing, recycling and destroy it. The producing a great variety of waste in the form of of liquids, solid and gas. Is not a good medical management waste could cause problem with health care and the environment. The purpose of this study was to determine the relationship of knowledgeand attitudes of health workers with medical waste management at community health centerSelayo. The research is of research the quantitative cross sectional. The population in this research is all health workers of community health center Selayo totaled 60 people. The sample technique used is the total sampling. The sample in this research is all health workers medical waste of 60 people.The analysis used in this research use software IBM SPSS Statistics Version 26. The result showed a value of knowledge of health workers (X1) -value =0,000 < significance (Y)= 0,05 which means there is a relationship between knowledge of health workers with medical waste management at community health center Selayo an d a value of attitudes of health workers (X2) -value =0,003 <significance (Y)= 0,05 which means there is a relationship between attitude of health workers with medical waste management at community health center Selayo. A value of ( X1) and value (X2) value=0,000< significance (Y)=0,05 which means there is a relationship between knowledge and attitudes of health workers with medical waste management at community health center Selayo.The existence of a relationship between knowledge and attitudes of health workers with medical waste management, then to expect every health workershould have a good knowledge of and attitudes towards the medical waste management in community health center so that actions taken in the handle and manage medical waste can be run correctly","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129802192","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 determine the effect of giving candlenut shell activated charcoal using the parameters BOD (Biochemical Oxygen Demand), TSS (Total Suspended Solid), and pH (power of hydrogen) in tempe waste. The research uses quantitative methods, the type of research is experimental and laboratory observation. The research sample consisted of tempe waste and candlenut shell activatedcharcoal. The data analysis technique consisted of calculating the effectiveness and efficiency of removal, as well as the Kruskal-Wallis statistical test. The results showed that activated charcoal of candlenut shells could reduce BOD and TSS levels in tempe waste. In addition, it can increase the pH of tempe wastewater to normal (pH = 7). Overall, the BOD parameters are still in normal conditionsand have not passed the predetermined threshold. The removal efficiency of activated charcoal from candlenut shells on BOD, TSS, and pH levels in tempe waste as a whole increased. The results of the Kruskal-Wallis H test for the BOD parameter obtained a significant value (Asymp. Sig.) of 0.083 > 0.05. TSS obtained a significant value (Asymp. Sig.) of 0.881 > 0.05. pH obtained a significant value (Asymp. Sig.) of 0.351 > 0.05. Thus, H0 is accepted or there is no significant (significant) difference in the ability of candlenut shell activated charcoal to BOD, TSS, and pH levels in tempe waste. This is because the samples used in laboratory tests on tempeh waste are still small, only repeated twice, the weight of the candlenut shell activated charcoal is only 5 grams and 10 grams, respectively.The conclusion shows that there is a decrease caused by giving candlenut shell activated charcoal using BOD (Biochemical Oxygen Demand) and TSS (Total Suspended Solid) parameters, as well as making the pH (power of hydrogen) neutral (pH 7) in tempe waste.
{"title":"EFEKTIVITAS ARANG AKTIF CANGKANG KEMIRI (Aleuritas molaccanu) UNTUK PENGOLAHAN LIMBAH TEMPE","authors":"Bryan Fery, Charles Situmorang, Ai Silmi","doi":"10.59134/jtnk.v6i02.169","DOIUrl":"https://doi.org/10.59134/jtnk.v6i02.169","url":null,"abstract":"This study aims to determine the effect of giving candlenut shell activated charcoal using the parameters BOD (Biochemical Oxygen Demand), TSS (Total Suspended Solid), and pH (power of hydrogen) in tempe waste. The research uses quantitative methods, the type of research is experimental and laboratory observation. The research sample consisted of tempe waste and candlenut shell activatedcharcoal. The data analysis technique consisted of calculating the effectiveness and efficiency of removal, as well as the Kruskal-Wallis statistical test. The results showed that activated charcoal of candlenut shells could reduce BOD and TSS levels in tempe waste. In addition, it can increase the pH of tempe wastewater to normal (pH = 7). Overall, the BOD parameters are still in normal conditionsand have not passed the predetermined threshold. The removal efficiency of activated charcoal from candlenut shells on BOD, TSS, and pH levels in tempe waste as a whole increased. The results of the Kruskal-Wallis H test for the BOD parameter obtained a significant value (Asymp. Sig.) of 0.083 > 0.05. TSS obtained a significant value (Asymp. Sig.) of 0.881 > 0.05. pH obtained a significant value (Asymp. Sig.) of 0.351 > 0.05. Thus, H0 is accepted or there is no significant (significant) difference in the ability of candlenut shell activated charcoal to BOD, TSS, and pH levels in tempe waste. This is because the samples used in laboratory tests on tempeh waste are still small, only repeated twice, the weight of the candlenut shell activated charcoal is only 5 grams and 10 grams, respectively.The conclusion shows that there is a decrease caused by giving candlenut shell activated charcoal using BOD (Biochemical Oxygen Demand) and TSS (Total Suspended Solid) parameters, as well as making the pH (power of hydrogen) neutral (pH 7) in tempe waste.","PeriodicalId":127483,"journal":{"name":"JURNAL TECHLINK","volume":"386 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121599070","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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