scholarly journals Kajian Potensi Air Kali Bekasi untuk Penyediaan Air Baku

2020 ◽  
Vol 8 (2) ◽  
pp. 79-86
Author(s):  
Suhardi -
Keyword(s):  
Water Balance ◽  
River Water ◽  
Rapid Development ◽  
Water Reservoir ◽  
Secondary Data ◽  
Quality Analysis ◽  
Raw Water ◽  
Availability Analysis ◽  
Class 1 ◽  
City Water

Rapid development in Bekasi City, Indonesia, requires the support of adequate facilities and infrastructure, including the availability of raw water. Raw water potential for Bekasi City is very limited. Therefore, this study aims to examine the potential of Bekasi River as a source of raw water for Bekasi City. Therefore, this study aims to examine the potential of Bekasi River as a source of raw water for Bekasi City. Research methodologies include secondary data collection, water availability analysis using dependable flow (weibull method), water demand analysis, water balance analysis (water balance), storage capacity analysis, water quality analysis. Result showed that Bekasi River water is not enough in quantity to meet the raw water needs for Bekasi City. Water balance showed that in 2024 there will be a lack of water for the scenarios Q50, Q80, and especially in Q90. In order to meet the water need in Bekasi City, water reservoir engineering is needed with a storage volume of 176 million m3. Bekasi River water does not meet class 1 quality standards in terms of quality, so efforts are needed to control water pollution in the Bekasi River.

scholarly journals Alokasi Air dan Pengembangan Prasarana Penyediaan Air Baku di DAS Ciliman

2019 ◽  
Vol 17 (3) ◽  
pp. 465
Author(s):  
Isvan Taufik
Keyword(s):  
Water Balance ◽  
Secondary Data ◽  
Population Data ◽  
Raw Water ◽  
Domestic Water ◽  
Irrigation Area ◽  
Potential Availability ◽  
Approach Method ◽  
The Impact ◽  
Planting Season

WEAP is one of the hydrological software in evaluating and planning the water balance of a region. The WEAP approach method operates with the basic principle of water balance and allows the creation of scenarios based on existing conditions to investigate the impact of policies or alternative assumptions in the use and availability of water in the future.The purpose of this study includes; (1) Analyzing the potential availability of raw water in each Ciliman Sub-watershed, (2) Analyzing the raw water needs of the Ciliman watershed, (3). Analyzing water allocation for each raw water requirement in the Ciliman watershed to be fulfilled and (4). Analyzing the potential for developing raw water infrastructure in the Ciliman watershed. The types of data used in this study are secondary data including: (1) monthly rainfall data from the Ciliman reservoir rainfall observation station, Gunung Kencana, Bojong Manik and KP3 at year 1998 - 2015, (2 ) population data of Ciliman watershed region, (3) the amount of raw water needs data, (4) Irrigation networks around the Ciliman watershed data (5) maps of the Ciliman watershed, (6) Tools used in this study include computer units and WEAP software.The resultsof the analysis shows that the existing simulation for domestic water needs can be fully fulfilled (100%) until the simulation time in 2036 for all sub-districts around the Ciliman watershed, except in August, the following sub-districts are not 100% fulfilled: Cirinten Subdistrict water deficit and only fulfilled 0.04%, Gunung Kencana Subdistrict only fulfilled 99.93%, Sukaresmi Subdistrict only fulfilled 11.69% and Panimbang Subdistrict only fulfilled 84.36%. The water needs of the Munjul industry in September to July are 100% fulfilled, while August is fulfilled by 40.55%. The water needs of KEK Tanjung Lesung and South Banten Airport from October to July are 100% fulfilled, while August is fulfilled 5% and 0.01% and September 30.27% and 30.60%.Irrigation water needs in the small irrigation area are 100% fulfilled in Planting Season (Rice) (1st week of October - 1st week of February) and in planting season II (Rice) (2ndweek of February - 2nd week of June), except irrigation in the Cipanggelangan watershed on MT I (November) fulfilled 57.80% and in MT.II (May) fulfilled 98.29%. Kramatjaya pump irrigation in MT I (November) was fulfilled 93.56% while in planting season III (Crops) (1st week of June - 2nd week of September) could not be fulfilled. The water needs of the Ciliman Irrigation Area are 100% fulfilled in October to June except in November only 92.10% is fulfilled, while the July to September deficit is only fulfilled by 36.16%, 3.18% and 32.85%. With the scenario of dam development with 4 alternatives, it can reduce the number of water supply failures until year 2036, so that raw water needs for various purposes can be fulfilled.

PENGARUH KEBUTUHAN AIR BERSIH TERHADAP JUMLAH PENDUDUK PULAU KARIMUN BESAR (STUDI KASUS: PDAM TIRTA KARIMUN)

2021 ◽  
Vol 1 (2) ◽  
pp. 1-21
Author(s):  
Riko Rizal ◽  
Kiki Herliza
Keyword(s):  
Water Use ◽  
Spatial Planning ◽  
Water Reservoir ◽  
Secondary Data ◽  
Water Sources ◽  
Clean Water ◽  
Raw Water ◽  
Water Shortages ◽  
Alternative Sources

The problem of providing clean water is currently a very serious problem on Karimun Besar Island. The need for clean water has increased every year while the availability of clean water is increasingly limited, due to the narrowing of infiltration areas, exploitation of raw water sources that do not pay attention to the sustainability of water sources, and the amount of reservoir discharge which is influenced by the climate on Karimun Besar Island. In order to avoid water shortages, it is necessary to maintain and preserve existing water sources, efficiency in water use and the search for new alternative sources. The purpose of this study is to analyze whether there is an effect of clean water needs on the population and to find out whether the water reservoir of the Sei Bati reservoir is in accordance with the Spatial Planning of Karimun Regency by using secondary data as reference from PDAM Tirta Karimun

scholarly journals Neraca Air di Pulau Bali

2009 ◽  
Vol 23 (1) ◽  
pp. 57
Author(s):  
Setyawan Purnama
Keyword(s):  
Water Balance ◽  
Critical Point ◽  
River Water ◽  
Secondary Data ◽  
Research Area ◽  
Result Show ◽  
The Impact

As a main destination of tourism in Indonesia, Bali develops rapidly. The impact of this phenomena is the increasing of water need in some sectors, whereas the available of water is constant. There are two objectives of this research. First, to calculate water available and water need in the research area, and second to analysis the water balance. Water available cover groundwater, rivers water and springs water, whereas water need cover domestic usage, industrial and hotel usage, cattle, fishery and irrigation. Groundwater is estimated by water balance concept, river water and spring data is collected from BPSDA Bali Province, whereas the water need is counted base on secondary data that collected from some departments in Bali Province. As a result, show that the water available in Bali Island is 2.604.483.300 m³/year, which consist of groundwater 693.296.200 m³/year, rivers water 1.903.678.000 m³/year and springs 7.509.600 m³/year. The water needs reach 1.213.625.300 m³/year, which consist of domestic usage 121.276.260 m³/year, industrial and hotel usage 20.038.068 m³/year, cattle 31.272.435 m³/year, fishery 125.305.574 m³/year and irrigation 915.733.000 m³/year. Base on the water balance ratio, it is known that the number of ratio is 47% that it means almost in critical point.

The influence of city water consumption on the water balance and quality of drinking water supply with implications for altered operating rules

2010 ◽  
Vol 10 (3) ◽  
pp. 376-382
Author(s):  
T. Pedusaar ◽  
E. Loigu ◽  
A. Pyrh ◽  
M. Pihlak
Keyword(s):  
Drinking Water ◽  
Water Balance ◽  
Water Consumption ◽  
Water Reservoir ◽  
Drinking Water Reservoir ◽  
Operating Rules ◽  
Run Off ◽  
City Water

In the period 1990–2006, the decrease in water consumption of Tallinn, the capital of Estonia, determined both the input and output of the water balance of Lake Ülemiste, the drinking water reservoir of the city as well as its hydraulic retention time (HRT). In 2006, the city's water consumption accounted for only a quarter of that in 1990.The role of regulated inflow in the water balance decreased and that of catchment run-off increased. Lake HRT increased four-fold. Before the 1990s, Lake Ülemiste resembled a river, now it is more lake-like. Changes in the water regime were correlated with the decline in concentrations of organic matter and chloride suggesting a likely causal relationship between them. Managerial challenges turned on finding new functions for upstream reservoirs and on the opportunity to refill the lake with better quality raw water.

STRATEGI PRODUK BORDIR DI KAPALO KOTO, KOTO TANGAH SIMALANGGANG, KOTA PAYAKUMBUH (Studi Kasus di Usaha Bordir Limpapeh”s Kebaya)

2019 ◽  
Vol 8 (1) ◽  
pp. 111
Author(s):  
Riris Susiani ◽  
Ernawati Ernawati
Keyword(s):  
Rapid Development ◽  
Secondary Data ◽  
Export Market ◽  
Product Strategy ◽  
Analysis Techniques ◽  
Product Service ◽  
Qualitative Descriptive ◽  
The Subject ◽  
The Times ◽  
Descriptive Method

AbstrakMasalah dalam penelitian ini yaitu pentingnya strategi produk dalam menjalankan sebuah usaha agar mampu bertahan dan bersaing  dengan perusahaan lain yang sejenis dalam kondisi persaingan yang ketat dan perkembangan zaman yang sangat cepat. Strategi produk sangat diperlukan dalam mememenuhi tuntutan konsumen seperti meningkatkan kualitas, menciptakan merek, pelayanan serta jaminan terhadap produk yang ditawarkan agar usaha mampu berkembang. Limpapeh”s Kebaya adalah usaha yang sedang berkembang dan telah mampu memasarkan produk bordirnya hingga menembus pasar ekspor. Penelitian ini bertujuan untuk mendeskripsikan strategi produk bordir di Limpapeh”s Kebaya, Kapalo Koto, Koto Tangah Simalanggang, Kota Payakumbuh. Metode penelitian menggunakan metode deskriftif kualitatif, jenis data berupa data primer dan  sekunder. Teknik pengumpulan data melalui observasi, wawancara dan dokumentasi. Teknik analisis data dilakukan dengan teknik analisa model interaktif yang berkaitan dengan pokok permasalahan yaitu dengan model reduksi data, penyajian data dan pengambilan kesimpulan. Hasil penelitian yaitu strategi produk yang dilakukan di Limpapeh”s Kebaya adalah dimulai dari menciptakan produk bordir yang berkualitas, desain motif bordir yang up to date dan kreatif, menyediakan ukuran yang special, memberi merek pada produk bordir, memberi kemasan yang menarik (paperbag) dan serbaguna, pelayanan yang cepat, tepat dan ramah serta pemberian jaminan terhadap produk border.Kata Kunci: strategi produk, pelayanan, bordir. AbstractThe problem in this study is the importance of product strategy in running a business in order to be able to survive and compete with other similar companies in conditions of intense competition and very rapid development of the times. Product strategy is very necessary in fulfilling consumer demands such as improving quality, creating brands, services and guarantees for products offered so that businesses are able to grow. Limpapeh's Kebaya is a growing business and has been able to market its embroidery products to penetrate the export market. This study aims to describe the strategy of embroidery products in Limpapeh's Kebaya, Kapalo Koto, Koto Tangah Simalanggang, Payakumbuh City. The research method uses qualitative descriptive method, the type of data in the form of primary and secondary data. The technique of collecting data through observation, interviews and documentation. Data analysis techniques are carried out with interactive model analysis techniques that are related to the subject matter, namely with a model of data reduction, data presentation and conclusion. The results of the research, namely the product strategy carried out at Limpapeh's Kebaya, are started from creating quality embroidery products, up-to-date and creative embroidery motifs, providing special sizes, giving brands to embroidery products, giving attractive packaging (paperbag) and versatile, fast, precise and friendly service and guarantee of embroidery products. Keywords: product, service, embroidery strategy.

PENDUGAAN EROSI DAN NERACA AIR EMBUNG DI WILAYAH PERBATASAN KABUPATEN BELU NUSA TENGGARA TIMUR

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Wahyu Widiyono
Keyword(s):  
Water Balance ◽  
Water Resource ◽  
Water Depth ◽  
Rainy Season ◽  
Water Reservoir ◽  
Water Shortage ◽  
Regional Government ◽  
Environment Management ◽  
Individual Number ◽  
Rainfall Volume

Embung as a man made water reservoir is one of methods to overcome the water shortage in the border area, Belu District, East Nusa Tenggara Province. A number of 27 embungs were built by Regional Government in this area. Embung water and environment management is the main problem to sustain water resource. The research to inventory and identify of vegetation, to predict erosion, to monitor water balance, and to optimize water utilization were conducted, in 2005-2008. The research was undertaken in Embung Leosama. Methods were survey, observation, monitoring and analysis. Results were: (1). There were 7 species and 90 individual number of tree; (2). Prediction of erosion was 97.383 ton/ha/year; (3). Water depth as indicator of embung water balance was decrease due to a little rainfall volume in rainy season 2006/2007; but it was increase in 2007/2008; (4). Embung water can be optimized for drinking cattle, horticulture, nursery and regreening irrigation.Key Words: embung, erosion, water balance.

Swing Operation Envelope of River-Sourced Water Treatment Facility for Water Injection Purpose in Banyu Urip Field

2021 ◽  
Author(s):  
Muhammad Amin Rois ◽  
Willy Dharmawan
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Rainy Season ◽  
Treatment Cost ◽  
Water Injection ◽  
Injection Rate ◽  
Raw Water ◽  
Treatment Facility ◽  
Water Parameters ◽  
Water Basin

Abstract Banyu Urip reservoir management heavily rely on river-sourced water as water injection to meet Voidage Replacement Ratio target of 1. The treatment facility which consist of Raw Water Basin, Clarifiers, Multi Media Fine (MMF) Filters and Cartridge Filters, is sensitive to seasonal transition and river condition. This paper shares lesson learnt in operating such facility and troubleshooting guidance to overcome challenges of high turbidity during rainy season and lack of river water volume during drought season. To maintain the design intent of Banyu Urip (BU) water treatment facility in achieving water injection quality and quantity at reasonable cost, following activities were undertaken: [1] Critical water parameters data gathering & analysis across each unit; [2] Clarifier Chemical injection dosage verification based on laboratory test; [3] MMF Media coring inspection to assess the filtering media condition; [4] MMF Filters backwash parameters optimization; [5] MMF Filter on-off valve sequencing optimization to address water hammering issue; [6] Water injection rate management to deal with river water source availability along the year. Critical water parameters analysis revealed that chemical dosages were in-adequate to treat the five times higher turbidity coming into Clarifiers during early rain 2019. On top of this, low Raw Water Basin level at the end of long drought further contributed to jeopardize Clarifier's operation. Although in-adequate chemicals injection was resolved at early 2020, the treatment cost remained high, especially on filtration section. Media coring result on MMF Filters confirmed that the filtering media have been poisoned by carried-over mud from Clarifiers during upset. The operation of MMF Filters required extensive optimization on backwash parameters to successfully recover the MMF Filters performance without media replacement. Latest media coring on the worst MMF Filter showed that there was no more top mud layer and the amount of trapped mud had been decreased significantly. Cartridge Filter replacement interval was improved from 38 hours to 186 hours, therefore water treatment cost dropped with quite significant margin. Additionally, the availability of each MMF Filters was also improved. At the same time, the high water injection rate during 2020 rainy season, had successfully increased reservoir pressure buffer up to its maximum point as the anticipation of prolonged drought season. This paper provides the troubleshooting guidance for MMF Filter application in season-prone water treatment facility including insights on interpretation of media coring result and linking it back to optimization strategy on the MMF Filters drain down time for effective backwash process without having excessive media loss.

scholarly journals Effectiveness of caporite to reduce concentration of iron and mangan in Ciliwung river water as raw water PDAM

2021 ◽  
Vol 11 (1) ◽  
pp. 30
Author(s):  
Nadhila Aulia Dwiputri ◽  
Mia Azizah ◽  
Nurlela Nurlela
Keyword(s):  
River Water ◽  
Government Regulation ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Quality Standard ◽  
Raw Water ◽  
Jar Test ◽  
Iron Manganese ◽  
Manganese Level ◽  
Iron And Manganese

The water of the Ciliwung river used as raw water for PDAM Depok contains iron and manganese, which levels were quite high and exceeded the quality standard. The purposes of the research are to determine the effectiveness of caporite to reduce levels of iron and manganese to reach levels that meet the standards of Government Regulation Number 82 of 2001. The sample used in this study was the water of the Ciliwung river used as a source of raw water for PDAM Depok with two different water treatment plant (WTP) locations, location 1 in Legong WTP and location 2 in Citayam WTP. Raw water was taken using a submersible water pump located at the bottom of the Ciliwung river. The analytical method used as a reference for determining iron levels was based on the FerroZine Rapid Liquid Method 1970, and for manganese levels was based on 1- (2-Pyridylazo) -2-Naphthol PAN Method 1977, both methods using the Spectrophotometric method. The results showed that iron and manganese levels were quite high, exceeding the standards of Government Regulation No.82 of 2001 with a maximum standard of iron content is 0.3 mg/L, and a maximum standard of manganese level is 0.1 mg/L. After adding a certain dose of chlorine to Ciliwung river water in the Legong and Citayam WTPs, it was found that chlorine effectively reduced Fe and Mn levels because it was able to reduce levels up to 80% and meet the quality standards.Keywords: Caporite, Iron, Manganese, Ciliwung River, RegulationABSTRAKEfektivitas kaporit untuk menurunkan kadar besi dan mangan dalam air sungai Ciliwung sebagai air baku PDAMAir sungai Ciliwung yang digunakan sebagai air baku PDAM Depok terdapat zat besi dan mangan dengan kadarnya cukup tinggi serta melebihi ambang baku mutu. Tujuan penelitian ini untuk mengetahui efektivitas kaporit dalam menurunkan kadar besi dan mangan sehingga memenuhi standar baku mutu Peraturan Pemerintah Nomor 82 Tahun 2001 untuk kelas 1. Sampel air yang digunakan dalam penelitian ini diambil dari 2 titik lokasi Instalasi Pengolahan Air (IPA) yang berbeda, yaitu  dari IPA Legong dan  IPA Citayam. Sampel air baku diambil dengan menggunakan pompa air submersible (pompa celup) yang berada di dasar sungai Ciliwung. Penelitian dilakukan dengan eksperimen jar test di laboratorium. Metode analisis untuk menentukan kadar besi  mengacu pada FerroZine Rapid Liquid Method tahun 1970 dan mangan berdasarkan 1-(2-Pyridylazo)-2-Napthol PAN Method tahun 1977 dengan menggunakan metode Spektrofotometri. Hasil penelitian menunjukan kadar besi dan mangan yang cukup tinggi hingga melebihi standar yang telah ditetapkan dalam PP No.82 Tahun 2001 dengan kadar Fe maksimal 0,3 mg/L dan kadar Mn maksimal 0,1 mg/L. Setelah dilakukan penambahan bahan kimia kaporit ke dalam sampel air sungai Ciliwung  dari  IPA Legong dan Citayam, dengan dosis 10 mg/L untuk penurunan Fe dan 30 mg/L untuk penurunan Mn dapat efektif menurunkan konsentrasi Fe dan Mn  hingga 80%, dan memenuhi  standar baku mutu yang digunakan.Kata Kunci: Kaporit, Besi, Mangan, Sungai Ciliwung, Baku Mutu

scholarly journals ECOLOGICAL STATE OF THE ILI BASIN GEOSYSTEMS

2021 ◽  
Vol 74 (2) ◽  
pp. 78-85
Author(s):  
T. A. Bazarbayeva ◽  
◽  
B.D. Rakhyshova ◽  
A. A. Oshakbay ◽  
◽  
...  
Keyword(s):  
Water Resources ◽  
River Water ◽  
Rapid Development ◽  
Geographical Location ◽  
Mineral Fertilizers ◽  
Chemical Studies ◽  
Spring Flow ◽  
Ili River Basin ◽  
Definition Of

The article considers the geo-ecological situation of the Ili basin. The definition of the physical and geographical location, topography, soil and vegetation of the region was given. It was determined that the management of the efficient use of water resources in the Ili river basin depends primarily on the water resources of the rivers entering the basin and the level of Lake Balkhash. Factors determining the spring flow of the Ili River are shown. Due to the development of the middle reaches of the Ili River, the whole river ecosystem, rice fields and shangel massifs, excessive use of mineral fertilizers and chemicals has led to a decrease in the quality of river water. In addition to the shortage of water resources, anthropogenic measures related to the rapid development of agriculture affect the quality of river water. Physical and chemical studies of water samples taken from the Ili River were carried out. It was clearly observed that the content of trace elements of zinc, lead and iron in water is higher than the approved maximum allowable concentration. According to the results of the study, the effect of micronutrients on the human body was considered.

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