scholarly journals A study of the clean water supply system in Pemalang regency water supply company

2021 ◽  
Vol 896 (1) ◽  
pp. 012016
Author(s):  
I D Komalasari ◽  
B P Samadikun ◽  
A Sarminingsih

Abstract The Regional Public Company for drinking water in Pemalang Regency is an official agency given the authority to provide and serve water needs in the Pemalang Regency area. Based on the 2020 BPKP, service coverage is still low. Namely, administrative service coverage of 12.74% and technical service coverage of 18.50%, so the service coverage still does not meet the target and achievement of access to decent drinking water. Based on the BPKP 2020-2024, it is necessary to evaluate the management of the clean water supply system, which aims to improve clean water services in the Pemalang City area. Data analysis was done descriptively. The analysis results will describe the clean water supply system management and evaluation based on appropriate standards, regulations, and literature studies. In addition, analysis using the EPANET program is used for SPAM improvement plans. The same is done for the study of raw water availability and water demand until 2030. The evaluation results found that the existing condition of Pemalang City SPAM is still able to supply clean water needs in the Pemalang City area until 2022, and Perumda must have started looking for supplements or additional discharge to meet drinking water needs up to 2030.

2021 ◽  
Vol 930 (1) ◽  
pp. 012005
Author(s):  
P Aryastana ◽  
N Sukaada ◽  
A A S D Rahadiani ◽  
C A Yujana

Abstract The rising population and economic activity have induced an increase in the demand for clean water in Buleleng Regency, especially in Sawan, Kubutambahan, and Tejakula District, respectively. The distribution of clean water supply is carried out through house connections and public hydrant by the Water Supply Company of Buleleng Regency with service coverage only reaching 40.09% in 2018. So it is necessary to evaluate and develop plans for the existing clean water supply system to increase service coverage. The evaluation of the water supply system includes an analysis of the availability and demand of clean water based on the population, with a projection for the next 25 years. Analysis of the clean water supply system development plan considers the availability of water resources potential. The evaluation results show that the existing system has not met the water demands in the service area. The development plan carried out to fulfill the demand for clean water is by optimizing the discharge of the Sanih Fountain by 125 liters/second and the construction of the Bungkulan 2 well.


2018 ◽  
Vol 28 (4) ◽  
pp. 1259-1264
Author(s):  
Kiril Lisichkov ◽  
Katerina Atkovska ◽  
Neven Trajchevski ◽  
Orce Popovski ◽  
Nadica Todorovska

The presence of some chemical compounds at higher levels than maximum permissible concentrations (MPC) in the drinking water, suggests of water resources pollution. In this paper the following elements were analyzed: total arsenic, cadmium, lead, cooper and zinc. Twelve samples of water from the water supply system from the city of Skopje were examined during one year from three different springs. Also, ten samples of bottled water from three producers from the Macedonian market were tested.The determined average mass concentrations of total As, Cd(II), Pb(II), Cu(II) and Zn(II) in the analyzed water samples from the water supply system are 1.35 μg/l, 0.06 μg/l, 0.6 μg/l, 0.9 μg/l and 1,12 μg/l, respectively, and for the tested bottled water, the mean values ranges from 0.56 - 0.83 μg total As / l, 0.053 - 0.056 μg Cd(II)/l, 0.51 - 0.54 μg Pb(II)/l , 0.6 - 0.87 μg Cu(II)/l and 0.68 - 0.8 μg Zn(II)/l water.The following instrumental analytical methods and techniques were used for the analysis of the tested samples of drinking water: flame atomic absorption spectroscopy (AAS), atomic absorption spectroscopy with hydride cеll, electrothermal atomic absorption spectroscopy.The obtained results are shown in tables and graphic form. According to the obtained results a comparative analysis was carried out indicate that it is a water of good quality that can be used in different branches of the process industry.The obtained results in this paper do not exceed the values of the MPC of the Republic of Macedonia prescribed by the legal regulations for the drinking water, which confirm the health safety of the drinking water from the water supply system in the city of Skopje and the packed waters from the Macedonian market in relation to the tested elements.


2018 ◽  
Vol 16 (2) ◽  
pp. 84
Author(s):  
G A Blagodatsky ◽  
A A Bass ◽  
M M Gorokhov ◽  
D S Ponomarev

Работа посвящена системному анализу данных показателей исходной воды при производстве питьевой воды в системе центрального водоснабжения крупного населенного пункта. На сегодняшний день на фоне увеличивающегося негативного антропогенного воздействия на окружающую среду наблюдается ухудшение состояния многих источников питьевого водоснабжения в широком спектре показателей, в частности, таких как органолептические свойства воды. Как следствие, возникает проблема и для питьевой воды. В работе приводится процесс подготовки данных о параметрах исходной воды, забираемой из водохранилища, которые ежемесячно (с 2002 по 2014 год) учитывались на предприятии при дезодорации воды. Приведенные параметры оказывают существенное влияние на органолептические свойства конечной воды. Подготовка данных для анализа проводится методом главных компонент К. Пирсона. Данные, полученные в пространстве R9, переводятся в пространство меньшей размерности R3. Понижение размерности позволяет снизить автокорреляцию между компонентами. Отбор компонент в пространство R3 проводится по правилу Парето. В пространстве R3 методом сферической кластеризации данных «Форель» с постоянным радиусом группировки проводится кластеризация. Приводится пошаговое визуальное представление алгоритма кластеризации в пространстве R3. В работе показано, что в данных показателях качества исходной воды имеются кластеры. Проводится корреляционно-регрессионный анализ данных, представленных в главных компонентах. Строятся регрессионные зависимости показателей органолептических свойств от главных компонент из пространства R3.


2020 ◽  
Vol 19 (10) ◽  
pp. 1813-1822
Author(s):  
Cecilia Caretti ◽  
Roberta Muoio ◽  
Leonardo Rossi ◽  
Daniela Santianni ◽  
Claudio Lubello ◽  
...  

2020 ◽  
Vol 202 ◽  
pp. 05015
Author(s):  
Budiyono Budiyono ◽  
Citrandy Pamungkas ◽  
Yusniar Hanani Darundiati

The water supply system is vital for inhabitants living in the coastal area. The water supply system in the coastal of Semarang 60% served by private. There is no information related to the private service of deep groundwater supply and customer satisfaction. This was an observational research with a cross-sectional. The samples were 40 of the service providers of deep groundwater and 40 customers obtained by accidental sampling. Data were collected by observation and interviewed by using questionnaires. Statistical analysis used the Chi-Square test with an estimated error of 5%. The results showed that the overall aspects of the service of deep groundwater supply in the good category were 22.5%. The overall perception of customer satisfaction showed in the satisfied category was 55 %. There was a significant association between the less good service of deep groundwater supply and the less satisfaction of the customer under the aspect of quality (p=0.006), quantity (p=0.001), continuity (p<0.001), and the overall of the service aspects (p=0.027). There was no significant association between affordability and the poor perception of customer satisfaction (p=0.736). The research concluded the less good service of deep groundwater supply and less satisfied with the customer in the coastal of Semarang. The quality, quantity, and continuity of drinking water may risk in health customers.


2020 ◽  
Author(s):  
Jolijn van Engelenburg ◽  
Erik van Slobbe ◽  
Adriaan J. Teuling ◽  
Remko Uijlenhoet ◽  
Petra Hellegers

Abstract. Developments such as climate change and growing demand for drinking water threaten the sustainability of drinking water supply worldwide. To deal with this threat, adaptation of drinking water supply systems is imperative, not only on a global and national scale, but particularly on a local scale. This investigation sought to establish characteristics that describe the sustainability of local drinking water supply. We use an integrated systems approach, describing the local drinking water supply system in terms of hydrological, technical and socio-economic characteristics that determine the sustainability of a local drinking water supply system. Three cases on drinking water supply in the Netherlands are analysed. One case relates to a short-term development, that is the 2018 summer drought, and two concern long-term phenomena, that is, changes in water quality and growth in drinking water demand. The approach taken recognises that next to extreme weather events, socio-economic developments will be among the main drivers of changes in drinking water supply. Effects of pressures associated with, for example, population growth, industrial developments and land use changes, could result in limited water resource availability, deteriorated groundwater quality and growing water demand. To gain a perspective on the case study findings broader than the Dutch context, the sustainability issues identified were paired with global issues concerning sustainable drinking water supply. This resulted in a proposed set of generally applicable sustainability characteristics, each divided into five criteria describing the hydrological, technical and socio-economic sustainability of a local drinking water supply system. Elaboration of these sustainability characteristics and criteria into a sustainability assessment can provide information on the challenges and trade-offs inherent in the sustainable development and management of a local drinking water supply system.


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