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Preface Vol. 2 No. 2 April 2019 前言第二卷第2期2019年4月
Pub Date : 2019-04-01 DOI: 10.25105/urbanenvirotech.v2i2.4660
A. Rinanti
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引用次数: 0
Mathematical Model To Identify Heavy Metal In Irrigation Channel From Cicabe Final Disposal Site 水渠最终处理场重金属识别的数学模型
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3530
E. Sembiring, I. Kamil
Aim: This study has been done to investigate the contamination in the main open channel using mathematical modeling to describe the pollutant transport of groundwater around the Cicabe final disposal site, Mandalajati Village, Bandung (coordinate 6°53'50"S; 107°39'48"E). Methodology and Result: This research was conducted in the irrigation channel that crossed next to Cicabe former waste disposal site. Pollutant parameter studied was Chromium (Cr) in water and sediment. To determine the pollutant transport along flow was using the equation of 1-dimensional analytical model based on advection–dispersion phenomena. The sampling was done twice for model calibration and validation. The samples collected included sediment and water. Pollutant input generated from leachate, domestic waste, and the open channel. The Cr simulation for k = 3 x 10-4/sec resulted that the model concentration was quite valid to approach observed Cr in observation and calibration. Simulations also done each segment to approach Cr observation with k1 = 2.5x10-4/sec, k2 = 1.1 x 10-3/sec, and k3 = 0/sec. Conclusion, significance and impact study: Cr concentration in the water met the quality standard according to PP 82/2011, while the Cr concentrations in sediment were above the US-EPA standard (2004). The simulation result for calibration and validation with k=1.4x10-4 Cr/sec showed the model was sufficient approaching the observed Cr. The Cr simulation indicated that the Cr had decayed as evidenced by the quite high Cr concentration in sediment.
目的:利用数学模型对万隆Mandalajati村(坐标6°53′50”S;107年39°48”E)。方法与结果:本研究在Cicabe原废物处理场旁的灌溉渠中进行。研究的污染物参数为水体和沉积物中的铬(Cr)。采用基于平流-弥散现象的一维解析模型方程确定污染物沿流输运。采样两次,用于模型校正和验证。收集的样本包括沉积物和水。由渗滤液、生活废物及明渠所产生的污染物。对k = 3 × 10-4/sec的Cr模拟结果表明,模型浓度与观测和定标时的Cr相当接近。对每段进行模拟,接近Cr观测值,k1 = 2.5 × 10-4/sec, k2 = 1.1 × 10-3/sec, k3 = 0/sec。结论、意义及影响研究:水体中Cr浓度符合PP 82/2011质量标准,沉积物中Cr浓度高于US-EPA标准(2004)。对k=1.4 × 10-4 Cr/sec进行校正和验证的模拟结果表明,模型与观测值Cr足够接近。Cr模拟表明,沉积物中Cr浓度较高,表明Cr已发生衰减。
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引用次数: 1
Management Optimization of Cipanunjang-Cileunca Reservoir in Bandung Regency Using Discrete Markov Methods 基于离散马尔可夫方法的万隆县慈坪庄-慈林加水库管理优化
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3555
M. Marselina, A. Sabar, Iin Pratama Sari
This research discusses about intake Cikalong as water resource infrastructure supplying water for PDAM Bandung City and PDAM Bandung Regency that depend on the operational of Cipanunjang Dam-Cileunca Dam, Plengan Hydropower, Lamajan Hydropower, Cikalong Hydropower and water from Cisangkuy River. Nowdays, capacity of PDAM Bandung city is 1800 L/sec and capacity of PDAM Bandung Regency is 500 L/sec. However, the amount of water that could be provided by PDAM Bandung City is 1400 L/sec while PDAM Bandung Regency is 200 L/sec. Aim: Optimization on upstream infrastructure is needed to make sure the quantity of water being supplied sufficient. Methodology and Result: There are some methods that can be used to fulfill that aim, on this research use Stochastic Markov Method. The optimization of the reservoir is achieved by the condition of the guideline track and the actual trajectory approaching 1, which means the absence of wasted water through the spillway but through the reservoir utility function for turbine demand, irrigation raw water and raw drinking water in the downstream. The comparison between trajectory and actual trajectory of Cipanunjang Reservoir is 0.861 while for optimization of Cileunca Reservoir is 0.827. Conclusion, significance and impact study: The correlation between the actual (historical) discharge and the Markov estimation discharge on the Cipanunjang-Cileunca Reservoir is closed to 1, so it can be show that the discharge estimation is conceptual because it corresponds to the actual condition (actual discharge).
本研究讨论了入口慈卡龙作为水资源基础设施,为PDAM万隆市和PDAM万隆县供水,这依赖于慈朗江-慈林卡大坝、普连干水电、拉玛坚水电、慈卡龙水电和慈桑圭河水的运行。目前,万隆市PDAM容量为1800升/秒,万隆县PDAM容量为500升/秒。但是,万隆市的供水能力为1400升/秒,万隆县的供水能力为200升/秒。目的:对上游基础设施进行优化,保证供水量充足。方法和结果:有一些方法可以用来实现这一目标,在本研究中使用随机马尔可夫方法。水库的优化是在指导轨迹和实际轨迹趋近于1的条件下实现的,即溢洪道没有浪费水,而是通过水库对下游水轮机需求、灌溉原水和饮用原水的效用函数实现的。三番江水库的轨迹与实际轨迹的对比值为0.861,七番卡水库的优化轨迹值为0.827。结论、意义及影响研究:三番戎—芝伦卡水库的实际(历史)流量与马尔可夫估算流量的相关性接近于1,表明该流量估算与实际情况(实际流量)相对应,是概念上的。
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引用次数: 2
Adsorption for Lead Removal by Chitosan from Shrimp Shells 壳聚糖吸附去除虾壳中的铅
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3554
Ratih Pratiwi, Ps. Dyah Prinajati
Aim: The objective of this study is to obtain the optimum efficiency of Lead (Pb) removal by adsorption using shrimp shells chitosan. Adsorption is one of the alternative ways to treat heavy metal. Various substances can be used as adsorbents for the adsorption process. One of the natural adsorbents that can be utilized is shrimp shells. Methodology and Results: In general, the process of making chitin into chitosan includes demineralization with dilute HCl, deproteinization with dilute NaOH, then deacetylation of chitin using concentrated NaOH. This study would demonstrate the adsorption on artificial waste containing 100 mg/L of Pb using 1 gram of chitosan with variations in pH (4, 5, 6) and time (30, 60, 90 minutes) to determine the effectiveness of chitosan made of shrimp shells in reducing Pb concentration. The results show that the highest removal efficiency of lead was achieved at pH 4 and 90 minutes duration with a removal percentage of 99.88%. Conclusion, significance, and impact study: Chitosan compounds as the results of shrimp shells processing have amine groups (NH2) which are nucleophiles (rich in electrons). It is favorable to be used as biocoagulants or bioadsorbents of lead heavy metal with a removal efficiency of above 90%.
目的:研究虾壳壳聚糖吸附除铅的最佳效果。吸附法是处理重金属的替代方法之一。在吸附过程中,可以使用各种物质作为吸附剂。虾壳是一种可以利用的天然吸附剂。方法与结果:甲壳素制壳聚糖的工艺流程一般为:稀盐酸脱矿,稀氢氧化钠脱蛋白,浓氢氧化钠脱乙酰。研究了1克壳聚糖在pH(4、5、6)和时间(30、60、90分钟)变化条件下对含100 mg/L铅的人工废水的吸附效果,以确定壳聚糖对铅的吸附效果。结果表明,在pH为4、处理时间为90 min时,铅的去除率最高,达到99.88%。结论、意义及影响研究:壳聚糖化合物作为虾壳加工的产物,其氨基(NH2)是亲核试剂(富含电子)。可作为铅重金属的生物混凝剂或生物吸附剂,去除率达90%以上。
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引用次数: 5
Multi-Criteria Analysis for Selecting Solid Waste Management Concept Case Study: Rural Areas in Sentani Lake Region, Jayapura 固体废物管理概念选择的多标准分析——以查亚普拉森塔尼湖地区农村为例
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3557
Alfred Benjamin Alfons, Tri Padmi
Aim: This study aims to identify, develop, and determine the most suitable concept of solid waste management to be applied in Ifale Village, Yobeh Village, Putali Village, Atamali Village, and Asei Besar Village. Until now, the application of solid waste management system in Jayapura is still far from what people expected since it has been unable to serve the communities who live in rural areas on the islands around Sentani Lake. As a result, 12,554.38 liters/day of solid waste generated by the community in these regions is left untreated. Methodology and Results: The study is using the Analytic Hierarchy Process (AHP) method. The AHP calculations show that the idea of handling solid waste in an integrated treatment facility—following the initial sorting on the household scale—has the highest priority weight (2.05) compared to the other alternatives. Hence, it has been chosen as the best solid waste management concept that can be applied to the study sites. Based on the results as well, the main criteria to be considered include the environmental aspects, social aspects, and technical aspects with each weighing value of 0.534, 0.186, and 0.147, respectively. Conclution, significans and impact study:  The sub-criteria with the highest priorities to be considered in making the decision are the soil pollution (due to produced leachate), air pollution (potentially in the form of stench and gas emissions), the transmission of disease vectors, public participation, and the operational convenience.
目的:本研究旨在确定、发展和确定最适合在Ifale村、Yobeh村、Putali村、Atamali村和Asei Besar村应用的固体废物管理概念。到目前为止,固体废物管理系统在Jayapura的应用还远远没有达到人们的期望,因为它无法服务于Sentani湖周围岛屿上农村地区的社区。结果,这些地区的社区每天产生的12554.38升固体废物没有得到处理。方法与结果:本研究采用层次分析法(AHP)。AHP计算表明,在家庭规模的初始分类之后,在综合处理设施中处理固体废物的想法与其他替代方案相比具有最高的优先权重(2.05)。因此,它被选为可应用于研究地点的最佳固体废物管理概念。根据结果,需要考虑的主要标准包括环境方面、社会方面和技术方面,每个权重值分别为0.534、0.186和0.147。结论、意义和影响研究:在作出决定时应优先考虑的子标准是土壤污染(由于产生的渗滤液)、空气污染(可能以恶臭和气体排放的形式)、病媒传播、公众参与和操作便利性。
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引用次数: 2
Heat Transfer Analysis and Water Quality in Saline Water Desalination Using Solar Energy in Vacuum Condition 真空条件下太阳能海水淡化的传热分析及水质
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3556
R. A. Kusumadewi, S. Notodarmodjo, Q. Helmy.
The continues deficiency of consumable water is a significant issue in developing countries, and contaminated water can result in various diseases, which are often lethal. Solar desalination seems to be a promising method and alternative way for supplying fresh water. Aim: The aim of this research is to study heat transfer in desalination system and the quality of feed water, distilled water and brine compared to the quality standard. Feed water consists of salinity 12‰ and 38‰ salinity. Methodology and Result: At first, initial characterization of feed water was conducted, then temperature on fourteen points was measured using thermocouples and thermometer so heat transfer rate can be calculated. After that, the final characterization of water production was conducted. From the  observation, it was found that evaporative heat transfer for vacuum pressure of -0.05, -0.1, -0.15, -0.2, -0.25, and -0.3 bar respectively were 173.77, 180.07, 190.79, 481.66, 242.57, and 246.24 W/m2. The result of water quality test of distilled water produced from saline water desalination for some parameters respectively were pH 7.4; turbidity 2.73 NTU; TDS 27.45 mg/L; chloride 84.98 mg/L; Fe 2.13 mg/L; total hardness 0.1698 mg/L; and Escherichia coli 12 cell/mL . Conclusion, significance and impact study: It can be concluded that distilled water produced by desalination system was met drinking water quality standard according to Minister of Health Regulation No. 492 of 2010.
饮用水的持续短缺是发展中国家的一个重大问题,受污染的水可导致各种疾病,这些疾病往往是致命的。太阳能海水淡化似乎是一种很有前途的方法和供应淡水的替代方法。目的:本研究的目的是研究海水淡化系统的传热情况,并将给水、蒸馏水和盐水的质量与质量标准进行比较。给水盐度为12‰和38‰。方法与结果:首先对给水进行初步表征,然后使用热电偶和温度计测量14个点的温度,从而计算传热率。在此之后,进行了最终的产水表征。通过观察发现,在-0.05、-0.1、-0.15、-0.2、-0.25和-0.3 bar的真空压力下,蒸发换热量分别为173.77、180.07、190.79、481.66、242.57和246.24 W/m2。对咸水脱盐生产的蒸馏水进行了水质测试,其中一些参数分别为pH 7.4;浊度2.73 NTU;TDS 27.45 mg/L;氯84.98 mg/L;铁2.13 mg/L;总硬度0.1698 mg/L;大肠杆菌12个细胞/mL。结论、意义及影响研究:根据2010年卫生部第492号条例,海水淡化系统生产的蒸馏水符合饮用水质量标准。
{"title":"Heat Transfer Analysis and Water Quality in Saline Water Desalination Using Solar Energy in Vacuum Condition","authors":"R. A. Kusumadewi, S. Notodarmodjo, Q. Helmy.","doi":"10.25105/URBANENVIROTECH.V2I1.3556","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V2I1.3556","url":null,"abstract":"The continues deficiency of consumable water is a significant issue in developing countries, and contaminated water can result in various diseases, which are often lethal. Solar desalination seems to be a promising method and alternative way for supplying fresh water. Aim: The aim of this research is to study heat transfer in desalination system and the quality of feed water, distilled water and brine compared to the quality standard. Feed water consists of salinity 12‰ and 38‰ salinity. Methodology and Result: At first, initial characterization of feed water was conducted, then temperature on fourteen points was measured using thermocouples and thermometer so heat transfer rate can be calculated. After that, the final characterization of water production was conducted. From the  observation, it was found that evaporative heat transfer for vacuum pressure of -0.05, -0.1, -0.15, -0.2, -0.25, and -0.3 bar respectively were 173.77, 180.07, 190.79, 481.66, 242.57, and 246.24 W/m2. The result of water quality test of distilled water produced from saline water desalination for some parameters respectively were pH 7.4; turbidity 2.73 NTU; TDS 27.45 mg/L; chloride 84.98 mg/L; Fe 2.13 mg/L; total hardness 0.1698 mg/L; and Escherichia coli 12 cell/mL . Conclusion, significance and impact study: It can be concluded that distilled water produced by desalination system was met drinking water quality standard according to Minister of Health Regulation No. 492 of 2010.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114330631","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}
引用次数: 3
The Pollution Profile of Citarik, Cimande, and Cikijing Rivers in Rancaekek District, West Java, Indonesia 印尼西爪哇rancekek地区Citarik河、Cimande河和Cikijing河的污染概况
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3551
Refnilda Fadhilah, K. Oginawati, Nur Aisyah Yuniar Romantis
Aim: The objective of this study was to determine the heavy metals pollution profile of Citarik, Cimande, and Cikijing Rivers. Methodology and Result: The method of this research to measured heavy metals was cadmium, chromium, copper and zinc. Determination of sampling point refers to SNI 03-7016-2004. The river water sampling procedure refers to SNI 6989.57-2008 on Water and Wastewater - Section 57. The water sample extraction method refers to Standard Method for the Examination of Water and Wastewater. Sediment sample extraction method refers to EPA Method 200.2-1994. The water sample extraction method refers to Standard Method for the Examination of Water and Wastewater. Sediment sample extraction method refers to EPA Method 200.2-1994. Based on test result and comparison to quality standard of Indonesian Government Regulation No. 82of 2001 on Water Quality Management and Water Pollution Control. The metal concentrations in the sediments were much higher than the concentrations of metals contained in water. This is due to the accumulation of metals in sediments that occur continuously. Conclusion, significance and impact study: The concentrations of four metals in water and sediments after river points higher than before passing the industrial area, it indicates that anthropogenic arising from agricultural activities and textile industry near the rivers of Citarik, Cikijing, and Cimande rivers. The degree of contamination and seasonal variation of heavy metals were high in water and sediment.
目的:研究西达里克河、西曼德河和茨基金河的重金属污染特征。方法与结果:本研究测定重金属的方法为镉、铬、铜和锌。采样点的确定参照SNI 03-7016-2004。河水取样程序参照SNI 6989.57-2008《水和废水》第57节。水样提取方法参照《水和废水检验标准方法》。沉积物样品提取方法参照EPA方法200.2-1994。水样提取方法参照《水和废水检验标准方法》。沉积物样品提取方法参照EPA方法200.2-1994。根据测试结果并与印度尼西亚政府2001年第82号水质管理和水污染控制法规的质量标准进行比较。沉积物中的金属含量远高于水中的金属含量。这是由于金属在沉积物中不断积累造成的。结论、意义及影响研究:河后水体及沉积物中4种金属的浓度均高于通过工业区前,表明Citarik河、Cikijing河和Cimande河附近的农业活动和纺织工业造成了人为污染。水体和底泥重金属污染程度和季节变化较大。
{"title":"The Pollution Profile of Citarik, Cimande, and Cikijing Rivers in Rancaekek District, West Java, Indonesia","authors":"Refnilda Fadhilah, K. Oginawati, Nur Aisyah Yuniar Romantis","doi":"10.25105/URBANENVIROTECH.V2I1.3551","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V2I1.3551","url":null,"abstract":"Aim: The objective of this study was to determine the heavy metals pollution profile of Citarik, Cimande, and Cikijing Rivers. Methodology and Result: The method of this research to measured heavy metals was cadmium, chromium, copper and zinc. Determination of sampling point refers to SNI 03-7016-2004. The river water sampling procedure refers to SNI 6989.57-2008 on Water and Wastewater - Section 57. The water sample extraction method refers to Standard Method for the Examination of Water and Wastewater. Sediment sample extraction method refers to EPA Method 200.2-1994. The water sample extraction method refers to Standard Method for the Examination of Water and Wastewater. Sediment sample extraction method refers to EPA Method 200.2-1994. Based on test result and comparison to quality standard of Indonesian Government Regulation No. 82of 2001 on Water Quality Management and Water Pollution Control. The metal concentrations in the sediments were much higher than the concentrations of metals contained in water. This is due to the accumulation of metals in sediments that occur continuously. Conclusion, significance and impact study: The concentrations of four metals in water and sediments after river points higher than before passing the industrial area, it indicates that anthropogenic arising from agricultural activities and textile industry near the rivers of Citarik, Cikijing, and Cimande rivers. The degree of contamination and seasonal variation of heavy metals were high in water and sediment.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128031335","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}
引用次数: 7
Helminth Eggs Parameter of Water Spinach Agriculture Field in Bandung 万隆市水菠菜田虫卵参数研究
Pub Date : 2018-10-30 DOI: 10.25105/URBANENVIROTECH.V2I1.3553
M. Firdayati, Peni Astrini Notodarmojo, B. Muntalif, Didit Trihartomo, I. S. Fathuna, K. Somantri
The high prevalence of helminth infection in Indonesia had encouraged the government to issue the Regulation of the Minister of Health concerning the Prevention of Soil-transmitted Helminths in 2017. Researches on the presence of helminth eggs in the environment, in soil and water as a media for transmitting the disease, are very few. Aim: The aim was conducted to investigate the potential presence of helminth eggs causing STH infections in two urban agricultural areas in northern and southern part of Bandung City. Methodology and results: Samples of water from the inlet and plantation area, as well as soil and water spinach produced by both regions, were collected and analyzed for the presence of helminth eggs using modified Bailinger methods. The number of helminth eggs of 1–119 eggs/L in water, soil, and vegetable samples. Conclusion, significance, and impact study: The results confirmed that the irrigation water used in both areas has been contaminated by feces. The average number of fecal coli exceeds the allowable value for the irrigation water source based on the Grade 4 of water quality criteria in Indonesia. Variations in the number of helminth eggs found in the samples can be caused by environmental conditions such as temperature, humidity, and soil types. The presence of helminth eggs in irrigation water and land samples exceeds the value recommended by WHO (2006) in the guidelines for the safe use of wastewater for agriculture. It can lead to an increased risk of helminth infection to consumers, agricultural workers, as well as residents around the farmland.
印度尼西亚的蠕虫感染率很高,促使政府于2017年颁布了《卫生部长关于预防土壤传播蠕虫的条例》。关于环境、土壤和水中存在的蠕虫卵作为传播疾病的媒介的研究很少。目的:调查万隆市北部和南部两个城市农业区是否存在引起STH感染的寄生虫卵。方法与结果:采用改良的白令格法对进口和种植区的水、土壤和水菠菜进行取样,分析是否存在蠕虫卵。水、土壤、蔬菜样品中蛆卵数为1 ~ 119个/L。结论、意义及影响研究:结果证实两个地区使用的灌溉水已被粪便污染。根据印尼4级水质标准,该灌溉水源平均大肠杆菌数超过允许值。在样本中发现的蠕虫卵数量的变化可能是由环境条件引起的,如温度、湿度和土壤类型。灌溉水和土地样本中存在的蠕虫卵超过了世卫组织(2006年)在《农业废水安全使用准则》中建议的值。这可能导致消费者、农业工人以及农田周围居民感染寄生虫的风险增加。
{"title":"Helminth Eggs Parameter of Water Spinach Agriculture Field in Bandung","authors":"M. Firdayati, Peni Astrini Notodarmojo, B. Muntalif, Didit Trihartomo, I. S. Fathuna, K. Somantri","doi":"10.25105/URBANENVIROTECH.V2I1.3553","DOIUrl":"https://doi.org/10.25105/URBANENVIROTECH.V2I1.3553","url":null,"abstract":"The high prevalence of helminth infection in Indonesia had encouraged the government to issue the Regulation of the Minister of Health concerning the Prevention of Soil-transmitted Helminths in 2017. Researches on the presence of helminth eggs in the environment, in soil and water as a media for transmitting the disease, are very few. Aim: The aim was conducted to investigate the potential presence of helminth eggs causing STH infections in two urban agricultural areas in northern and southern part of Bandung City. Methodology and results: Samples of water from the inlet and plantation area, as well as soil and water spinach produced by both regions, were collected and analyzed for the presence of helminth eggs using modified Bailinger methods. The number of helminth eggs of 1–119 eggs/L in water, soil, and vegetable samples. Conclusion, significance, and impact study: The results confirmed that the irrigation water used in both areas has been contaminated by feces. The average number of fecal coli exceeds the allowable value for the irrigation water source based on the Grade 4 of water quality criteria in Indonesia. Variations in the number of helminth eggs found in the samples can be caused by environmental conditions such as temperature, humidity, and soil types. The presence of helminth eggs in irrigation water and land samples exceeds the value recommended by WHO (2006) in the guidelines for the safe use of wastewater for agriculture. It can lead to an increased risk of helminth infection to consumers, agricultural workers, as well as residents around the farmland.","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124409548","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}
引用次数: 5
Front Cover Vol. 2 No. 2 April 2019 封面第二卷第2期2019年4月
Pub Date : 2009-04-01 DOI: 10.25105/urbanenvirotech.v2i2.4659
A. Rinanti
{"title":"Front Cover Vol. 2 No. 2 April 2019","authors":"A. Rinanti","doi":"10.25105/urbanenvirotech.v2i2.4659","DOIUrl":"https://doi.org/10.25105/urbanenvirotech.v2i2.4659","url":null,"abstract":"","PeriodicalId":329428,"journal":{"name":"INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133857039","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}
引用次数: 0
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INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
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