Assessment of groundwater utilization in the Bandung-Soreang groundwater basin based on non-domestic water demand planning standards

Abstract The need for water in various human activities increases with population, agriculture, and industry. The utilization of surface water is a priority to meet water demands. However, if access to surface water cannot be fulfilled, then the fulfillment of water demands will shift to groundwater. The research was conducted by calculating the standard of water demands for industrial activities based on the ministry of public works and housing standards. The first calculation is carried out by calculating water demand through the industrial land area in the research location and multiplied by the standard of water demand for non-domestic water demands. The second standard water demand calculation is the equivalent percentage of domestic water demands as non-domestic water demands. The first calculation method explains that West Bandung Regency had exceeded the maximum value of the standard water demands. In the second calculation method, Cimahi City, Sumedang Regency, and West Bandung Regency had exceeded the maximum value of water demand standards. Further research is needed regarding the collecting data of distribution and volume of groundwater utilization by unregistered wells. It is to explain actual groundwater utilization for domestic and non-domestic in Bandung-Soreang Groundwater Basin. So that water resources management can be carried out comprehensively.

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Water Demand Forecast in the Baiyangdian Basin with the Extensive and Low-Carbon Economic Modes

Journal of Applied Mathematics ◽

10.1155/2014/673485 ◽

2014 ◽

Vol 2014 ◽

pp. 1-10 ◽

Cited By ~ 2

Author(s):

T. L. Qin ◽

D. H. Yan ◽

G. Wang ◽

J. Yin

Keyword(s):

Water Demand ◽

Industrial Structure ◽

Low Carbon ◽

Total Water ◽

Demand Forecast ◽

Domestic Water ◽

Water Demands ◽

Water Demand Forecast ◽

Population Urbanization ◽

Total Water Demand

The extensive and low-carbon economic modes were constructed on the basis of population, urbanization level, economic growth rate, industrial structure, industrial scale, and ecoenvironmental water requirement. The objective of this paper is to quantitatively analyze effects of these two economic modes on regional water demand. Productive and domestic water demands were both derived by their scale and quota. Ecological water calculation involves the water within stream, wetland, and cities and towns. Total water demand of the research region was obtained based on the above three aspects. The research method was applied in the Baiyangdian basin. Results showed that total water demand with the extensive economic mode would increase by 1.27 billion m3, 1.53 billion m3, and 2.16 billion m3in 2015, 2020, and 2030, respectively, compared with that with low-carbon mode.

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Urban stormwater harvesting for domestic water supply: a water evaluation and planning approach

Water Science & Technology ◽

10.2166/wst.2021.250 ◽

2021 ◽

Author(s):

S. S. Pravin ◽

C. Gajendran ◽

T. Divya

Keyword(s):

Surface Water ◽

Water Supply ◽

Water Demand ◽

Supply And Demand ◽

Stormwater Runoff ◽

Water Bodies ◽

Domestic Water ◽

Domestic Water Demand ◽

Surface Water Bodies ◽

Water Evaluation And Planning

Abstract Renewable groundwater and surface water supplies are insufficient for the existing urban population all over the world as water demand is increasing rapidly. Usage per capita in urban areas transcends 160 liters per day. Climate change is projected to increase water demand even more. Sources of surface water obtained by stormwater runoff can be well used to fulfill this requirement. The main objective of this work is to assess the water supply and demand in the dry condition in the Coimbatore region, Tamil Nadu, India, and to use the Water Evaluation and Planning method to create a model for supply and demand in the future. There are more than three dozen of surface water bodies in and around the metropolitan center. Most sources are heavily encroached upon. By linking stormwater runoff from its respective elevation to the accessible surface water bodies, an additional water supply source can be obtained. By using the Water Evaluation and Planning framework as a guide, models were developed to determine potential needs, compare demand and supply, water usage, lack of water use, and population coverage. The enhanced stormwater drainage system for Coimbatore city was also designed in such a way that the corporation's various roads were connected to the major water bodies. The domestic water demand in the future is predicted to be around 27 Million Cubic Feet(MCFT). Meanwhile, the possible amount of stormwater collection in the selected water bodies is predicted to be 50 Million Cubic Meter (MCM) to 320MCM. Thus, the study concluded that 100% of urban domestic water demand can be met if the urban stormwater is utilized by harvesting and storing in surface water bodies.

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Analisis Neraca Air Permukaan Sub DAS Krueng Khee Kabupaten Aceh Besar

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v1i1.1183 ◽

2016 ◽

Vol 1 (1) ◽

pp. 1002-1008

Author(s):

Arini Putri ◽

Susi Chairani ◽

Ichwana Ichwana

Keyword(s):

Surface Water ◽

Water Balance ◽

Water Potential ◽

Water Availability ◽

Water Demand ◽

Research Area ◽

Domestic Water ◽

Input Surface ◽

Balance Analysis ◽

Surface Water Storage

Pengetahuan mengenai ketersediaan air dan kebutuhan air sangat penting untuk mengetahui keseimbangan air. Perhitungan neraca air permukaan dilakukan untuk mengetahui kemampuan ketersediaan air permukaan pada Sub DAS Krueng Khee untuk memenuhi kebutuhan air domestik dan irigasi. Data klimatologi dan sosial pada tahun 2014 yang digunakan pada penelitian. Berdasarkan penelitian ini diketahui potensi air permukaan Sub DAS Krueng Khee berasal dari air sungai dan curah hujan efektif. Jumlah potensi air dari air sungai pada tahun 2014 adalah 16.891.372,8/tahun. Ketersediaan air yang berasal dari curah hujan efektif digunakan untuk memenuhi kebutuhan kebutuhan air irigasi. Kebutuhan air yang terdapat di Sub DAS Krueng Khee meliputi: kebutuhan air domestik, irigasi, peternakan, dan industri. Analisis neraca air permukaan dilaksanakan dengan mengurangkan input air permukaan dengan output air pada daerah penelitian. Keseimbangan air permukaan (surface water balance) yang dicapai untuk memenuhi kebutuhan air di Sub DAS Krueng Khee pada tahun 2014 adalah: Perubahan simpanan air permukaan ( maksimum yaitu 4.279.181,10 /bulan pada bulan Januari (surplus), rata-rata yaitu 1.255.403,945 /bulan dan minimum yaitu 383.486,90/bulan pada bulan Oktober. Sepanjang tahun 2014 tidak terjadi kekurangan ketersediaan air untuk memenuhi kebutuhan air total Sub DAS Krueng Khee.Knowledge about water availability and water demand is significant to water balance awareness. Accounting surface water balance is to find out capability of surface water availability in Sub Watershed Krueng Khee in order to fulfill domestic and irigation water demand. Chilmatology and social data in year 2014 were used in this research. Based on the result the source of surface water potential in Sub Watershed Krueng Khee source are river water and effective rainfall. The amount of water potential from the river in year 2014 was 16.891.372,8/year. The water availability from effective ranfall used to fulfill irigation. Water demand in Sub wathershed Krueng Khee divers from domestic water demand, irigation, livestock and industry. Surface water balance analysis perfomed by subtracting input surface water with the water output in the research area. Surface water balance achieved to fulfill water demand in Sub Watershed Krueng Khee in 2014: surface water storage ( maximum was 4.279.181,10 /month in January (surplus), average was 1.255.403,945 / month and minimum was 383.486,90/month in October. Throughout the year 2014 there was no shortage of water availability to fulfill the water demand in Sub Wathershed Krueng Khee

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ANALISIS KEBUTUHAN AIR KABUPATEN KAMPAR

Selodang Mayang: Jurnal Ilmiah Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir ◽

10.47521/selodangmayang.v6i3.189 ◽

2020 ◽

Vol 6 (3) ◽

pp. 209-220

Author(s):

Salvi Novita ◽

Manyuk Fauzi ◽

Imam Suprayogi

Keyword(s):

Surface Water ◽

Water Availability ◽

Irrigation Water ◽

Water Demand ◽

Industrial Water ◽

Domestic Water ◽

Water Requirements ◽

A Value ◽

Service Areas ◽

Use Efficiency

ABSTRAK Perkembangan wilayah pada suatu daerah akan menyebabkan kebutuhan air terus meningkat seiring dengan laju pertumbuhan penduduk. Kecenderungan yang sering terjadi adalah adanya ketidakseimbangan antara ketersediaan dan kebutuhan air. Untuk mencapai keseimbangan antara kebutuhan air dan ketersediaan air di masa mendatang, diperlukan upaya pengkajian komponen komponen kebutuhan air, serta efisiensi penggunaan air. Ketersediaan air terbesar untuk probabilitas 80% untuk DAS Kampar adalah pada bulan Januari dengan nilai sebesar 371,96 m3/detik dan untuk DAS Siak adalah pada bulan Desember dengan nilai sebesar 18,06 m3/detik sedangkan ketersediaan air terkecil untuk probabilitas 80% untuk DAS Kampar adalah pada bulan Agustus dengan nilai sebesar 120,19 m3/detik dan untuk DAS Siak adalah pada bulan Juli dengan nilai sebesar 5,16 m3/detik. Kebutuhan air pada Kabupaten Kampar yaitu antara lain kebutuhan air irigasi 22.391.782 m3 pada tahun 2017 dan 22.388.055 m3 pada tahun 2037; kebutuhan air penduduk 3.889.618 m3 pada tahun 2017 dan 6.460.267 m3 pada tahun 2037, kebutuhan air perkotaan 162.869 m3 pada tahun 2017 dan 2.250.117 m3 pada tahun 2037, kebutuhan air industri 3.690.267 m3 pada tahun 2017 dan 6.696.326 m3 pada tahun 2037, kebutuhan air peternakan 134.948 m3 pada tahun 2017 dan 631.511 m3 pada tahun 2037, kebutuhan air perikanan 35.925.023 m3 pada tahun 2017 dan 44.776.333 m3 pada tahun 2037 dan kebutuhan air perkebunan 148.253.099 m3 pada tahun 2017 dan 188.219.394 m3 pada tahun 2037. Dari hasil perhitungan didapat daerah layanan yang mengalami defisit air pada 20 tahun mendatang adalah Kecamatan Tapung Hilir dan Kecamatan Kampar. Kebutuhan air yang mendominasi penggunaan air permukaan di Kabupaten Kampar adalah kebutuhan air irigasi dan perkebunan. ABSTRACT The development of the territory in an area will cause the water demand increased continually, lined with population growth. The tendency that often go with it, is that the imbalance between availability and demand of water. To achieve a balance of water demand and water availability in the future, studying and surveying the components of water demand and water use efficiency are needed. The largest water availability for a probability of 80% for the Kampar watershed is in January with a value of 371.96 m3 / second and for the Siak watershed is in December with a value of 18.06 m3 / second while the smallest water availability is for a probability of 80% for the watershed. Kampar is in August with a value of 120.19 m3 / second and for the Siak River Basin is in July with a value of 5.16 m3 / second. Water demand in Kampar Regency include, among others, Total irrigation water requirements for 22,391,782 m3 in 2017 and 22,388,055 m3 in 2037; domestic water needs 3,889,618 m3 in 2017 and 6,460,267 m3 in 2037, non domestic water needs (1,162,869 m3 in 2017 and 2,250,117 m3 in 2037, industrial water needs 3,690. 267 m3 in 2017 and 6,696,326 m3 in 2037, livestock water needs 134,948 m3 in 2017 and 631,511 m3 in 2037, fishery water needs 35,925,023 m3 in 2017 and 44,776,333 m3 in 2037 and water needs plantation 148,253,099 m3 in 2017 and 188,219,394 m3 in 2037. From the calculation, it is found that service areas that will experience a water deficit in the next 20 years are Tapung Hilir and Kampar Districts. The need for water that dominates the use of surface water in Kampar Regency is the need for irrigation and plantation water.

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Impact of Natural and Anthropogenic Stresses on Surface and Groundwater Supply Sources of the Upper Awash Sub-Basin, Central Ethiopia

Frontiers in Earth Science ◽

10.3389/feart.2021.656726 ◽

2021 ◽

Vol 9 ◽

Author(s):

Behailu Birhanu ◽

Seifu Kebede ◽

Katrina Charles ◽

Meron Taye ◽

Ayele Atlaw ◽

...

Keyword(s):

Climate Change ◽

Surface Water ◽

Water Demand ◽

Addis Ababa ◽

Groundwater Resources ◽

Water Security ◽

Conjunctive Use ◽

Domestic Water ◽

Groundwater Supply ◽

Surface And Groundwater

Improving water security is critical to delivering the best outcomes for development. In Ethiopia, the upper Awash sub-basin supports expanding urban and industrial areas, with increasing water demands. Studies have preferentially focused either on surface water hydrology or on groundwater characterization. However, novel tools are required to support the conjunctive use of surface and groundwater for competing users under potential climate change impacts. In this paper, we present research based on a WEAP-MODFLOW link configured for four catchments in the upper Awash sub-basin (Akaki, Melka Kunture, Mojo, and Koka). The Akaki catchment supplies water for Addis Ababa city. Unlike most surface water hydrological models, both supply (surface water and groundwater) and demand (domestic, industrial, and livestock) are modeled. The tool was used to evaluate the impacts of population growth, leakage, expansion of surface and groundwater supply schemes, and climate change scenarios up to the year 2030. Considering the high population growth rate scenario for Addis Ababa city, the unmet domestic water demand may increase to 760 MCM in 2030. Water leakage through poor water supply distribution networks contributed about 23% of the unmet water demand. Though not significant compared with population and water loss stresses, climate change also affect the supply demand condition in the basin. Planning for more groundwater abstraction without considering additional surface water reservoir schemes will noticeably impact the groundwater resource, with groundwater levels projected to decline by more than 20 m. Even more groundwater level decline is observed In the Akaki catchment, where Addis Ababa city is located. Conjunctive use of surface and groundwater not only boosts the supply demand situation in the basin but will lift off some of the stresses from the groundwater resources. Even under the likely increase in temperature and low precipitation climate scenarios, the conjunctive use resulted in a significant increase in domestic water demand coverage from 26% for the reference condition to 90% in 2030, with minimum effect on the groundwater resources. To improve water security conditions through sustainable utilization of both surface and groundwater resources, policy responses need to consider surface and groundwater conjunctive use. Minimizing water leakage should also be given the highest priority.

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Disinfection by-products in desalinated and blend water: formation and control strategy

Journal of Water and Health ◽

10.2166/wh.2018.204 ◽

2018 ◽

Vol 17 (1) ◽

pp. 1-24 ◽

Cited By ~ 4

Author(s):

Shakhawat Chowdhury

Keyword(s):

Distribution Systems ◽

Water Distribution ◽

Cancer Risks ◽

Domestic Water ◽

Desalinated Water ◽

Water Demands ◽

Product Water ◽

And Control ◽

Different Sources ◽

By Products

Abstract Desalinated seawater is the major source of drinking water in many countries. During desalination, several activities including pretreatment, desalination, stabilization, mixing, storage and distribution are performed. Few disinfectants are used during these activities to control the biofouling agents and microbiological regrowth. The reactions between the disinfectants and natural organic matter (NOM), bromide and iodide form disinfection by-products (DBPs) in product water. The product water is stabilized and mixed with treated freshwater (e.g., groundwater) to meet the domestic water demands. The DBPs in desalinated and blend water are an issue due to their possible cancer and non-cancer risks to humans. In this paper, formation and distribution of DBPs in different steps of desalination and water distribution systems prior to reaching the consumer tap were reviewed. The variability of DBPs among different sources and desalination processes was explained. The toxicities of DBPs were compared and the strategies to control DBPs in desalinated water were proposed. Several research directions were identified to achieve comprehensive control on DBPs in desalinated water, which are likely to protect humans from the adverse consequences of DBPs.

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A Panel Data Estimation of Domestic Water Demand with IRT Tariff Structure: The Case of the City of Valencia (Spain)

Sustainability ◽

10.3390/su13031414 ◽

2021 ◽

Vol 13 (3) ◽

pp. 1414

Author(s):

Mónica Madonado-Devis ◽

Vicent Almenar-Llongo

Keyword(s):

Panel Data ◽

Water Demand ◽

Large Data ◽

Demand Elasticity ◽

Average Price ◽

Domestic Water ◽

Domestic Water Demand ◽

Household Level ◽

Price Structure ◽

The City

In urban water provisioning, prices can improve efficiency, contributing to the achievement of the environmental objective. However, household responses to price changes differ widely based on the household characteristics. Analyses performed at the aggregate level ignore the implications of water demand incentives at the individual household level. A large data sample at the household level enables estimation of econometric models of water demand, capturing the heterogeneity in domestic consumption. This study estimated the domestic water demand in the city of Valencia and its elasticity, along with the demands of its different districts and neighbourhoods (intra-urban scale analysis). Water price structure in Valencia is completely different from that of other Spanish cities: it is a price structure of increasing volume (increasing rate tariffs, IRT). For this estimation, from a microdata panel at the household level, the demand function with average prices for the period 2008–2011 was estimated using panel data techniques including a fixed effect for each neighbourhood. The domestic water demand elasticity at the average price in Valencia was estimated at −0.88 (which is higher than that estimated for other Spanish cities). This value indicates an inelastic demand at the average price of the previous period, which can cause consumers to overestimate the price and react more strongly to changes.

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Optimal Solution for Hyper-Sphere Integral Classification Process of Big Data

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.687-691.1462 ◽

2014 ◽

Vol 687-691 ◽

pp. 1462-1465

Author(s):

Zhi Liang Zhang

Keyword(s):

Big Data ◽

Calculation Method ◽

Optimal Solution ◽

Constraint Condition ◽

Target Problem ◽

Maximum Value ◽

Dual Programming ◽

Optimal Classification ◽

Classification Function ◽

Optimal Calculation

This paper mainly discusses the optimal solution for hyper-sphere integral classification process of big data. The paper proposes an optimal calculation method for the target problem. Through statistics and analysis of big data, we get the constraint condition, and calculate a maximum value of data characteristic. Then, by the dual programming of Quadratic Programming, we obtain the optimal classification function for hyper-sphere integral classification process of big data. The experiment results show that the proposed algorithm can significantly improve the accuracy of the classification hyper-sphere integral for big data.

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Projecting Basin-Scale Distributed Irrigation and Domestic Water Demands and Values: A Generic Method for Large-Scale Modeling

Water Economics and Policy ◽

10.1142/s2382624x16500235 ◽

2016 ◽

Vol 02 (04) ◽

pp. 1650023 ◽

Cited By ~ 1

Author(s):

Noémie Neverre ◽

Patrice Dumas

Keyword(s):

Irrigation Water ◽

Large Scale ◽

Potential Evapotranspiration ◽

Demand Curve ◽

Economic Valuation ◽

Economic Value ◽

Expansion Method ◽

Domestic Water ◽

Water Demands ◽

Basin Scale

This paper presents a methodology to project irrigation and domestic water demands on a regional to global scale, in terms of both quantity and economic value. Projections are distributed at the water basin scale. Irrigation water demand is projected under climate change. It is simply computed as the difference between crop potential evapotranspiration for the different stages of the growing season and available precipitation. Irrigation water economic value is based on a yield comparison approach between rainfed and irrigated crops using average yields. For the domestic sector, we project the combined effects of demographic growth, economic development and water cost evolution on future demands. The method consists in building three-part inverse demand functions in which volume limits of the blocks evolve with the level of GDP per capita. The value of water along the demand curve is determined from price-elasticity, price and demand data from the literature, using the point-expansion method, and from water cost data. This generic methodology can be easily applied to large-scale regions, in particular developing regions where reliable data are scarce. As an illustration, it is applied to Algeria, at the 2050 horizon, for demands associated to reservoirs. Our results show that domestic demand is projected to become a major water consumption sector. The methodology is meant to be integrated into large-scale hydroeconomic models, to determine inter-sectorial and inter-temporal water allocation based on economic valuation.

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