Pub Date : 2019-10-30DOI: 10.25105/urbanenvirotech.v3i1.5798
M. Okeke, P. Eze, C. Eze
Aims: The purpose of this project is to find the concentration of heavy metals (Cu, Zn, Pb, As, Cr, Ni, Cd, Fe and Mn) in the top soil and the plant around the waste dumpsite from Enugu municipal solid waste disposal sites. Methodology and results: This was done through collection of soil samples from four designated public municipal solid waste dump sites (Ngwo Umueze, Presidential, New-market and Emene) in Enugu metropolis. The soil samples were collected at 10 metres intervals away from the centre location point of each dump site at constant depth (0 - 15 cm were mixed together and sample picked from it). The samples collection design are as follows: centre (0m) of the dump sites, 10 metres, 20 metres, 30 metres and the control sample which measured 65 metres away from the centre of dumpsites at the same depth. Plant samples were taken just at the centre (0m) and control measures which is at 65 meters distance away from each dump sites. The Goat grasses harvested were taken to the lab to check and analyse its heavy metals intake from the soil. These samples were analysed using atomic absorption spectrophotometer (AA320N) model. On the average, high concentrations of Zn, Fe, Mn, Cu, and Pb were found in the soil samples collected at the centre of the dump sites as 141.70, 121.5, 75.53, 70.33 and 64.53mg/kg respectively. The lower concentrations were obtained in the soil samples taken at the control site which 65 metres distance away from the centre of the four dump sites as 12.00, 81.55, 8.70, 9.56 and 6.51mg/kg for Zn, Fe, Mn, Cu, and Pb respectively. In the plant sample, concentration of Fe (98.00 mg/kg) was found to be the highest in the root at New market dumpsites, while Nil concentration of as (Nil mg/kg) was the least value at Emene from the control distance. Conclusion, significance and impact study: SPSS statistical package was used to find out the significant differences between the treatments mean (heavy metals). The result shows that the heavy metals analyses were within the acceptable or permissible limit by WHO/FAO.
{"title":"CONCENTRATION OF HEAVY METALS IN THE SOIL AND PLANTS AROUND WASTE DUMPSITES IN ENUGU METROPOLIS, NIGERIA","authors":"M. Okeke, P. Eze, C. Eze","doi":"10.25105/urbanenvirotech.v3i1.5798","DOIUrl":"https://doi.org/10.25105/urbanenvirotech.v3i1.5798","url":null,"abstract":"Aims: The purpose of this project is to find the concentration of heavy metals (Cu, Zn, Pb, As, Cr, Ni, Cd, Fe and Mn) in the top soil and the plant around the waste dumpsite from Enugu municipal solid waste disposal sites. Methodology and results: This was done through collection of soil samples from four designated public municipal solid waste dump sites (Ngwo Umueze, Presidential, New-market and Emene) in Enugu metropolis. The soil samples were collected at 10 metres intervals away from the centre location point of each dump site at constant depth (0 - 15 cm were mixed together and sample picked from it). The samples collection design are as follows: centre (0m) of the dump sites, 10 metres, 20 metres, 30 metres and the control sample which measured 65 metres away from the centre of dumpsites at the same depth. Plant samples were taken just at the centre (0m) and control measures which is at 65 meters distance away from each dump sites. The Goat grasses harvested were taken to the lab to check and analyse its heavy metals intake from the soil. These samples were analysed using atomic absorption spectrophotometer (AA320N) model. On the average, high concentrations of Zn, Fe, Mn, Cu, and Pb were found in the soil samples collected at the centre of the dump sites as 141.70, 121.5, 75.53, 70.33 and 64.53mg/kg respectively. The lower concentrations were obtained in the soil samples taken at the control site which 65 metres distance away from the centre of the four dump sites as 12.00, 81.55, 8.70, 9.56 and 6.51mg/kg for Zn, Fe, Mn, Cu, and Pb respectively. In the plant sample, concentration of Fe (98.00 mg/kg) was found to be the highest in the root at New market dumpsites, while Nil concentration of as (Nil mg/kg) was the least value at Emene from the control distance. Conclusion, significance and impact study: SPSS statistical package was used to find out the significant differences between the treatments mean (heavy metals). The result shows that the heavy metals analyses were within the acceptable or permissible limit by WHO/FAO.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116384941","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 : 2019-10-30DOI: 10.25105/urbanenvirotech.v3i1.5478
F. Dwirani, A. Ariesmayana, A. Sudrajad, I. Nurhakim, Deni Ihwanudin Firdaus
Aim: This study aims to determine the potency of horsetail plant to remove heavy metal concentration. Methodology and Results: There are 54 horsetail which are divided into three batches for experimental design by varying number of plants. The first batch used 12 plants, the second batch used 18 plants, and the third batch used 24 plants. The research furthermore used the experimental method with the subsurface flow system treatment. The sample was taken and observed for seven days, with two samplings daily. The results therefore showed that the first batch gave a 6.83% impact on reducing concentration Fe, a batch at 10.28%, and batch three at 16.26%. The average of reducing concentration Fe reached approximately 11%. Therefore, the detention of the process of leachate constructed wetland reactors could significantly reduce Fe contaminant in leachate. Conclusion, significance, and impact of study: This research provides a solution to mitigate the environment by adopting the accumulator of Horsetail plants (Equisetem hyemale) in the constructed wetlands reactor experiment. From the three reactors about 0.03 mg/L of heavy metal iron was removed after a seven day run. Therefore, aquatic plants showed a positive impact in reducing environmental pollution a trend that can be adopted in wastewater and leachate treatment technology in Indonesia.
{"title":"HORSETAIL PLANT PHYTOREMEDIATION POTENTIAL IN THE DECREASE OF HEAVY METAL IRON (Fe) IN LEACHATE AT CILOWONG’S LANDFILL AREA SERANG CITY","authors":"F. Dwirani, A. Ariesmayana, A. Sudrajad, I. Nurhakim, Deni Ihwanudin Firdaus","doi":"10.25105/urbanenvirotech.v3i1.5478","DOIUrl":"https://doi.org/10.25105/urbanenvirotech.v3i1.5478","url":null,"abstract":"Aim: This study aims to determine the potency of horsetail plant to remove heavy metal concentration. Methodology and Results: There are 54 horsetail which are divided into three batches for experimental design by varying number of plants. The first batch used 12 plants, the second batch used 18 plants, and the third batch used 24 plants. The research furthermore used the experimental method with the subsurface flow system treatment. The sample was taken and observed for seven days, with two samplings daily. The results therefore showed that the first batch gave a 6.83% impact on reducing concentration Fe, a batch at 10.28%, and batch three at 16.26%. The average of reducing concentration Fe reached approximately 11%. Therefore, the detention of the process of leachate constructed wetland reactors could significantly reduce Fe contaminant in leachate. Conclusion, significance, and impact of study: This research provides a solution to mitigate the environment by adopting the accumulator of Horsetail plants (Equisetem hyemale) in the constructed wetlands reactor experiment. From the three reactors about 0.03 mg/L of heavy metal iron was removed after a seven day run. Therefore, aquatic plants showed a positive impact in reducing environmental pollution a trend that can be adopted in wastewater and leachate treatment technology in Indonesia.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122338650","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 : 2019-10-30DOI: 10.25105/urbanenvirotech.v3i1.5095
I. W. Suryawan, Gita Prajati, A. Afifah, Muhammad Rizki Apritama, Y. Adicita
Aims: This study was aimed to determine the efficiency and characteristics of the pig wastewater treatment using ABR with the addition of effective microorganism4 (EM4) as bio-activator during the startup process (R1) and without EM4 (R2). Methodology and results: Piggery wastewater is poured into ABR with 12 hours HRT (hydraulic retention time) and reduced to 6 hours after the concentration in ABR is stable. COD removal efficiency when 12 hours HRT reach 60% (R1), and 51% (R2). The results did not change significantly, when 6 hours HRT COD efficiency were 57.8% (R1) and 51.3% (R2). The biomass growth rate at R1 is faster than R2 with Food to Microorganism ratio (F/M) 0.4-0.89 (R1) and 0.68-1.38 (R2). The yield value of methane gas formation in the study showed a value of 0.25-0.28 L-CH4/g-COD removed. Conclusion, significance and impact study: Advanced wastewater treatment is needed to improve effluent’s quality for water reuse from piggery wastewater. The addition of EM4 can improve the COD efficiency removal and biomass growth.
{"title":"CONTINUOUS PIGGERY WASTEWATER TREATMENT WITH ANAEROBIC BAFFLED REACTOR (ABR) BY BIO-ACTIVATOR EFFECTIVE MICROORGANISMS (EM4)","authors":"I. W. Suryawan, Gita Prajati, A. Afifah, Muhammad Rizki Apritama, Y. Adicita","doi":"10.25105/urbanenvirotech.v3i1.5095","DOIUrl":"https://doi.org/10.25105/urbanenvirotech.v3i1.5095","url":null,"abstract":"Aims: This study was aimed to determine the efficiency and characteristics of the pig wastewater treatment using ABR with the addition of effective microorganism4 (EM4) as bio-activator during the startup process (R1) and without EM4 (R2). Methodology and results: Piggery wastewater is poured into ABR with 12 hours HRT (hydraulic retention time) and reduced to 6 hours after the concentration in ABR is stable. COD removal efficiency when 12 hours HRT reach 60% (R1), and 51% (R2). The results did not change significantly, when 6 hours HRT COD efficiency were 57.8% (R1) and 51.3% (R2). The biomass growth rate at R1 is faster than R2 with Food to Microorganism ratio (F/M) 0.4-0.89 (R1) and 0.68-1.38 (R2). The yield value of methane gas formation in the study showed a value of 0.25-0.28 L-CH4/g-COD removed. Conclusion, significance and impact study: Advanced wastewater treatment is needed to improve effluent’s quality for water reuse from piggery wastewater. The addition of EM4 can improve the COD efficiency removal and biomass growth.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134521791","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4365
I. M. W. Widyarsana, Kania Salmaa
Aim: This study aims to evaluate the practice of waste management system conducted by community and business units in one traditional village in Bali and to discover the contributing factors to the success of the practice. Methodology and Results: A set of waste sampling method, observation, and interview were conducted to collect the basis data for the data calculation and analysis. The results show that the waste generation in Padangtegal Village currently reaches 38.18 m3/day or 1145.41 m3/month, with the largest weight composition from leaves and twigs waste (39.87%), food waste (29.07 %), and plastic (13.11%). With 100% of waste handling service, the processing of waste carried out in the area only reached 5.06% of 3R behavior (reduce, reuse, and recycle) at the source, and 1.10% composting at the composting house (Rumah Kompos). Conclusion, significance and impact study: Most of the processing carried out at Temesi Recycling is through composting (33.98%) and recovery of recycled material (33.68%), resulting in a residue (26.19%) which is transported to the Suwung Landfill. It could be concluded that organic waste processing through composting and recycling non-organic waste could reduce waste volume transported to the landfill about 67%.
{"title":"EVALUATION OF WASTE MANAGEMENT ACHIEVEMENT IN PADANGTEGAL PEKRAMAN VILLAGE, UBUD SUB DISTRICT, GIANYAR DISTRICT, BALI","authors":"I. M. W. Widyarsana, Kania Salmaa","doi":"10.25105/URBANENVIROTECH.V0I0.4365","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4365","url":null,"abstract":"Aim: This study aims to evaluate the practice of waste management system conducted by community and business units in one traditional village in Bali and to discover the contributing factors to the success of the practice. Methodology and Results: A set of waste sampling method, observation, and interview were conducted to collect the basis data for the data calculation and analysis. The results show that the waste generation in Padangtegal Village currently reaches 38.18 m3/day or 1145.41 m3/month, with the largest weight composition from leaves and twigs waste (39.87%), food waste (29.07 %), and plastic (13.11%). With 100% of waste handling service, the processing of waste carried out in the area only reached 5.06% of 3R behavior (reduce, reuse, and recycle) at the source, and 1.10% composting at the composting house (Rumah Kompos). Conclusion, significance and impact study: Most of the processing carried out at Temesi Recycling is through composting (33.98%) and recovery of recycled material (33.68%), resulting in a residue (26.19%) which is transported to the Suwung Landfill. It could be concluded that organic waste processing through composting and recycling non-organic waste could reduce waste volume transported to the landfill about 67%.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122154680","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4363
S. Madonna, S. Fairus, Nadya Nurul Amelinda
Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: Results showed that Alum with a concentration of 200 mg/L was the most effective coagulant, with removal efficiency for each parameter is as follows TDS = 82.17%, TSS = 67.69%, BOD = 60.16%, and COD = 59.76%.
{"title":"LABORATORY STUDY ON THE OPTIMIZATION OF IPLT SUMUR BATU DEWATERING UNIT USING DIFFERENT COAGULANTS","authors":"S. Madonna, S. Fairus, Nadya Nurul Amelinda","doi":"10.25105/URBANENVIROTECH.V0I0.4363","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4363","url":null,"abstract":"Aim: The aim of this study is to determine the most effective type and concentration of coagulant to reduce TDS, TSS, BOD and COD Sumur Batu Fecal Treatment Plant or Instalasi Pengolahan Lumpur Tinja (IPLT) Sumur Batu. Methodology and Results: Using the jar test method at a laboratory scale, the types of coagulants of PAC, Alum and FeSO4 with varied concentration of 70 mg/L, 137.5 mg/L and 200 mg/L were used. Additionally, Polyacrylamide was also used in the study with concentration varied between 0.1 mg/L, 0.6 mg/L, and 1.1 mg/L adjusted to the concentration in the field. Conclusion, significance and impact study: Results showed that Alum with a concentration of 200 mg/L was the most effective coagulant, with removal efficiency for each parameter is as follows TDS = 82.17%, TSS = 67.69%, BOD = 60.16%, and COD = 59.76%.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124375150","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4361
B. Suharto, Liliya Dewi, A. N. Mustaqiman, Tyas Roro Anggraini Kyai Marjo
Aim: The purpose of this study was to determine the status of water quality in a river by using the Pollution Index method as stated in the Decree of the Minister of Environment No. 115/2003 regarding Guidelines for Determining the Status of Water Quality and to determine the effect of quality status on development efforts towards ecotourism. Methodology and Results: The measurement of water quality was carried out at two points, namely T1 (upstream) and T2 (downstream) points. The parameters included BOD, COD, DO, TSS, Temperature, pH, Zn, S, P, No3, and No2. From the test results for class I, II, and III criteria, almost all parameters exceeded the quality standard. The status of the river water quality, according to the Pollution Index, has increased from moderate polluted upstream and heavily polluted to certain parameters downstream. Conclusion, significance and impact study: The quality standards that are met for the river are criteria for class IV. The increase in pollution is indicated by human activity around the river which is characterized by increasing population and land use in agriculture and plantations. The increasing pollution reduces the quality of the river if it is developed into an ecotourism area due to its low water quality status.
{"title":"THE STUDY OF WATER QUALITY STATUS IN THE NGEBRONG RIVER WITH PHYSICAL AND CHEMICAL PARAMETERS IN THE TAWANGSARI BARAT REGION, PUJON DISTRICT, MALANG REGENCY","authors":"B. Suharto, Liliya Dewi, A. N. Mustaqiman, Tyas Roro Anggraini Kyai Marjo","doi":"10.25105/URBANENVIROTECH.V0I0.4361","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4361","url":null,"abstract":"Aim: The purpose of this study was to determine the status of water quality in a river by using the Pollution Index method as stated in the Decree of the Minister of Environment No. 115/2003 regarding Guidelines for Determining the Status of Water Quality and to determine the effect of quality status on development efforts towards ecotourism. Methodology and Results: The measurement of water quality was carried out at two points, namely T1 (upstream) and T2 (downstream) points. The parameters included BOD, COD, DO, TSS, Temperature, pH, Zn, S, P, No3, and No2. From the test results for class I, II, and III criteria, almost all parameters exceeded the quality standard. The status of the river water quality, according to the Pollution Index, has increased from moderate polluted upstream and heavily polluted to certain parameters downstream. Conclusion, significance and impact study: The quality standards that are met for the river are criteria for class IV. The increase in pollution is indicated by human activity around the river which is characterized by increasing population and land use in agriculture and plantations. The increasing pollution reduces the quality of the river if it is developed into an ecotourism area due to its low water quality status.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129019579","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4362
R. Hakiki, T. Wikaningrum
Aim: This study aims to observe the potential implementation of analytical methods based on digital image processing as an alternative method of colorimetric analysis that can be implemented in site. Methodology and Results: Pt-Co standard series solutions at concentrations of 5, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 concentration units (CU) were measured by spectrophotometric method and digitally enhanced colorimetric (DEC) method to obtain a response in the form of absorbance (Abs) and area under curve (AUC) value. Absorbance measurement was carried out at 317.5 nm (λ max). The AUC value was obtained from the 3-point RGB value measurements, made average so that a color band is produced, then quantified by translating the color band intensity into the response curve in ImageJ software. The Abs and AUC values of artificial samples are processed into CU values with linear equations resulting from linear regression test. The results of the calculation of CU values from the two measurement methods were tested using independent t test method to examine significant differences between the two measurement methods. Conclusion, significance and impact study: Coefficient of determination (R2) plot CU VS AUC = 0.8638, in independent t test was obtained p-value = 0.4246 at the 95% confidence level. Therefore, it can be concluded that digitally enhanced colorimetric could be used to determine water quality, especially color parameter in site measurement.
目的:本研究旨在观察基于数字图像处理的分析方法的潜在实施，作为可在现场实施的比色分析的替代方法。方法与结果:采用分光光度法和数字增强比色法分别测定浓度为5、10、20、30、40、50、60、70、80、90和100个浓度单位(CU)的Pt-Co标准系列溶液的吸光度(Abs)和曲线下面积(AUC)值。在317.5 nm (λ max)处进行吸光度测量。AUC值由3点RGB值测量得到，取平均值，形成一个色带，然后在ImageJ软件中将色带强度转化为响应曲线进行量化。人工样品的Abs和AUC值通过线性回归检验得到线性方程，处理成CU值。采用独立t检验方法对两种测量方法计算CU值的结果进行检验，以检验两种测量方法之间的显著性差异。结论，显著性及影响研究:决定系数(R2)图CU VS AUC = 0.8638，独立t检验在95%置信水平下得到p值= 0.4246。因此，数字增强比色法可以用于现场测量水质，特别是颜色参数的确定。
{"title":"THE PROSPECT OF DIGITALLY ENHANCED COLORIMETRY AS AN ANALYTICAL METHOD FOR WATER QUALITY DETERMINATION","authors":"R. Hakiki, T. Wikaningrum","doi":"10.25105/URBANENVIROTECH.V0I0.4362","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4362","url":null,"abstract":"Aim: This study aims to observe the potential implementation of analytical methods based on digital image processing as an alternative method of colorimetric analysis that can be implemented in site. Methodology and Results: Pt-Co standard series solutions at concentrations of 5, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 concentration units (CU) were measured by spectrophotometric method and digitally enhanced colorimetric (DEC) method to obtain a response in the form of absorbance (Abs) and area under curve (AUC) value. Absorbance measurement was carried out at 317.5 nm (λ max). The AUC value was obtained from the 3-point RGB value measurements, made average so that a color band is produced, then quantified by translating the color band intensity into the response curve in ImageJ software. The Abs and AUC values of artificial samples are processed into CU values with linear equations resulting from linear regression test. The results of the calculation of CU values from the two measurement methods were tested using independent t test method to examine significant differences between the two measurement methods. Conclusion, significance and impact study: Coefficient of determination (R2) plot CU VS AUC = 0.8638, in independent t test was obtained p-value = 0.4246 at the 95% confidence level. Therefore, it can be concluded that digitally enhanced colorimetric could be used to determine water quality, especially color parameter in site measurement.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"14 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133651105","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4359
L. Siami, Titien Sotiyorini, N. Janah
Aim: This study aims to identify the characteristics and generation of municipal solid waste (MSW) in Banyuwangi. Methodology and Results: The solid waste characterization was carried out in two areas in Banyuwangi, referring to the Indonesian National Standard (Standar Nasional Indonesia/SNI) 19-3964-1995. The results show that the highest composition is organics of 36% (39% from households/HSW and 35.35% from Non-HSW). The highest solid waste (SW) generation from industrial areas and train station are 0.61 and 1.38 kg/population.day, respectively, while the SW density from the bus station is 375.46 kg/m3. The weight, volume, and density of household solid waste (HSW) are 0.17 kg/population.day, 2.02 L/population.day, and 81.07 kg/m3, respectively. The population of Zone 1 and Zone 2 is 142.054 in 2016, generating 8,814 tons of HSW per year (tpy). Conclusion, significance and impact study: The main MSW compositions in Banyuwangi are organics (36%), plastics (17.20%), and papers (15.78%). Household solid waste generation in Banyuwangi reaches 8.8 tons per year with the primary compositions of 39% organics, 18.92% residues, 18.4% papers, and 14.4% plastics. The highest number of residue defines that 81% of solid waste can be recycled.
目的:了解半玉旺基城市生活垃圾的特征及其产生规律。方法与结果:参照印尼国家标准(Standar Nasional Indonesia/SNI) 19-3964-1995在Banyuwangi的两个地区进行固体废物表征。结果表明，有机成分最高，占36%(39%来自家庭/HSW, 35.35%来自非HSW)。工业区和火车站的固体废物产生量最高，分别为每人口0.61公斤和1.38公斤。公交车站的SW密度为375.46 kg/m3。生活固体废物(HSW)的重量、体积和密度为0.17 kg/人口。日，2.02 L/人口。日，81.07 kg/m3。2016年1区和2区人口为142.054人，年产生高温水8814吨(tpy)。结论、意义及影响研究:半渔望基城市生活垃圾主要成分为有机物(36%)、塑料(17.20%)和纸张(15.78%)。Banyuwangi的家庭固体废物产生量达到每年8.8吨，主要成分为39%的有机物，18.92%的残留物，18.4%的纸张和14.4%的塑料。最高残留量说明81%的固体废物可回收利用。
{"title":"MUNICIPAL SOLID WASTE QUANTIFICATION AND CHARACTERIZATION IN BANYUWANGI, INDONESIA","authors":"L. Siami, Titien Sotiyorini, N. Janah","doi":"10.25105/URBANENVIROTECH.V0I0.4359","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4359","url":null,"abstract":"Aim: This study aims to identify the characteristics and generation of municipal solid waste (MSW) in Banyuwangi. Methodology and Results: The solid waste characterization was carried out in two areas in Banyuwangi, referring to the Indonesian National Standard (Standar Nasional Indonesia/SNI) 19-3964-1995. The results show that the highest composition is organics of 36% (39% from households/HSW and 35.35% from Non-HSW). The highest solid waste (SW) generation from industrial areas and train station are 0.61 and 1.38 kg/population.day, respectively, while the SW density from the bus station is 375.46 kg/m3. The weight, volume, and density of household solid waste (HSW) are 0.17 kg/population.day, 2.02 L/population.day, and 81.07 kg/m3, respectively. The population of Zone 1 and Zone 2 is 142.054 in 2016, generating 8,814 tons of HSW per year (tpy). Conclusion, significance and impact study: The main MSW compositions in Banyuwangi are organics (36%), plastics (17.20%), and papers (15.78%). Household solid waste generation in Banyuwangi reaches 8.8 tons per year with the primary compositions of 39% organics, 18.92% residues, 18.4% papers, and 14.4% plastics. The highest number of residue defines that 81% of solid waste can be recycled.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123092665","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4360
Aulia Ramandha, Wisnu Eka Yulyanto, S. Madonna
Aim: The aim of this study is to design noise barrier shapes and to investigate its effectiveness in reducing traffic noise at one public school in Indonesia. Methodology and Results: Two types of barriers were designed on a laboratory scale using plywood materials and the noise level was measured using Noise Analyzer Briiel and Kjaer Type 2250. Noise reduction was analyzed by using the Insertion Loss method based on the difference of the noise level before and after implementing the barrier. The results show that the barrier Type II with a length of 200 cm, a receiver height of 30 cm, and a curved shape of 45° angle (Type L) is more effective in reducing the noise than the other variation of barrier shape and length. Barrier Type L (Type II) can reduce the noise at high frequency between 1–8 kHz with an Insertion Loss value of 6.9–27.9 dB. Conclusion, significance and impact study: The noise barrier Type II, with specifications of 20 m length, 3 m height, and barrier material of reinforced concrete, is recommended to be used at the high school to reduce the road traffic noise.
{"title":"STUDY ON EFFECTIVE NOISE BARRIER AT SENIOR HIGH SCHOOL (SMAN 02) CIBINONG","authors":"Aulia Ramandha, Wisnu Eka Yulyanto, S. Madonna","doi":"10.25105/URBANENVIROTECH.V0I0.4360","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4360","url":null,"abstract":"Aim: The aim of this study is to design noise barrier shapes and to investigate its effectiveness in reducing traffic noise at one public school in Indonesia. Methodology and Results: Two types of barriers were designed on a laboratory scale using plywood materials and the noise level was measured using Noise Analyzer Briiel and Kjaer Type 2250. Noise reduction was analyzed by using the Insertion Loss method based on the difference of the noise level before and after implementing the barrier. The results show that the barrier Type II with a length of 200 cm, a receiver height of 30 cm, and a curved shape of 45° angle (Type L) is more effective in reducing the noise than the other variation of barrier shape and length. Barrier Type L (Type II) can reduce the noise at high frequency between 1–8 kHz with an Insertion Loss value of 6.9–27.9 dB. Conclusion, significance and impact study: The noise barrier Type II, with specifications of 20 m length, 3 m height, and barrier material of reinforced concrete, is recommended to be used at the high school to reduce the road traffic noise.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130039739","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 : 2019-04-29DOI: 10.25105/URBANENVIROTECH.V0I0.4364
Nishi Verma, M. Anda, Y. Wijayanti
Aim: This study investigates the development of a sustainable groundwater management strategy in Yogyakarta province through groundwater recharge technologies. This study also compares technologies used in the province and the one already implemented in Perth due to its similar nature in site geology and hydrogeology. Methodology and Results: Primary and secondary data were collected and analyzed. Water depth and hydraulic conductivity data were analyzed using permeameter and GIS program. GIS image analysis of water depth and hydraulic conductivity suggested that the placement of potential aquifer recharge sites would be best suited in the north-east part of the province, slightly outside the study area, to provide water for all. Two recharge schemes of an infiltration basin and an injection well with storm water detention tank were proposed. The injection well was decided upon, despite its higher cost, due to the impermeability of soils in Yogyakarta and possible water seepage to the environment. Similar to Perth’s Hartfield park scheme, an injection well would directly bypass these soil layers to recharge the aquifers with rainwater and storm water. Hartfield Park injects 4400 kL of water/year. Conclusion, significance and impact study: The findings of this study indicate aquifer recharge is a possible solution to overcome Yogyakarta’s high abstraction. Further studies recommend that injection well trials are further developed in terms of location, depth and sizing.
{"title":"ARTIFICIAL RECHARGE FOR SUSTAINABLE GROUNDWATER MANAGEMENT PLAN IN YOGYAKARTA","authors":"Nishi Verma, M. Anda, Y. Wijayanti","doi":"10.25105/URBANENVIROTECH.V0I0.4364","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V0I0.4364","url":null,"abstract":"Aim: This study investigates the development of a sustainable groundwater management strategy in Yogyakarta province through groundwater recharge technologies. This study also compares technologies used in the province and the one already implemented in Perth due to its similar nature in site geology and hydrogeology. Methodology and Results: Primary and secondary data were collected and analyzed. Water depth and hydraulic conductivity data were analyzed using permeameter and GIS program. GIS image analysis of water depth and hydraulic conductivity suggested that the placement of potential aquifer recharge sites would be best suited in the north-east part of the province, slightly outside the study area, to provide water for all. Two recharge schemes of an infiltration basin and an injection well with storm water detention tank were proposed. The injection well was decided upon, despite its higher cost, due to the impermeability of soils in Yogyakarta and possible water seepage to the environment. Similar to Perth’s Hartfield park scheme, an injection well would directly bypass these soil layers to recharge the aquifers with rainwater and storm water. Hartfield Park injects 4400 kL of water/year. Conclusion, significance and impact study: The findings of this study indicate aquifer recharge is a possible solution to overcome Yogyakarta’s high abstraction. Further studies recommend that injection well trials are further developed in terms of location, depth and sizing.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"2009 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127335712","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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