scholarly journals EVALUASI POTENSI SUMBERDAYA AIR UNTUK PENGEMBANGAN INDUSTRI DI KOTA BONTANG, KALIMANTAN TIMUR

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Arie Herlambang
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Demand ◽  
Drainage System ◽  
Water Source ◽  
Rain Water ◽  
Domestic Water ◽  
East Kalimantan ◽  
The Future ◽  
The City

The total population Bontang in 2014 is around 187,346 peoples. With the level of domestic water demand of 110 liters /person/day, the water needs of the city for at least Bontang 238.52 liters/sec. Currently for the needs of the community water supply received from the local water company with a capacity of 80 liters/sec, and It will be developed further to 250 liters/second in 2015. There are two big industries that need huge of water, namely LNG and Fertilizers Factory.  Factory of East Kalimantan (PKT) need additional water supply around 1000 m3/h or (166.67 liters/sec) with the specifications for the Water Industry   and 200 m3/h will be used to supply the needs of water for 21 818 inhabitants. Bontang city water source can be derived from groundwater, rivers, and rain water storage (reservoirs of water). In recent decades Bontang relied upon groundwater for water supply industry and some communities, the rest use river water and rain water tandah. With a very heavy rainfall ( 2500 mm / year), then the making of ponds in large quantities can help to reserve water in the future. For the purposes of future water supplies, it would require an asessment of all potential water resources utilization and planning for the use of adapted to the urban development plan. Water recycling of domestic waste is also a potential source of fresh water in the future, especially for industrial use. The drainage system needs to be directed at a large holding pond located in a low area, before going into the sea. The rain that fell in the city drained and collected would be of potential if utilized. In short-term utilization of water of the Bontang river is very of potential, given its location in the city center and is one of the many watersheds in Bontang, causing floods in the rainy season. Control and management of water is needed to support the use of river water.Keywords: Water resources, Water Demand, Water Supply, and Water Balance

Urban water demand assessment for sustainable water resources management, under climate change and socioeconomic changes

2019 ◽  
Vol 20 (2) ◽  
pp. 679-687 ◽  
Author(s):  
Angelos Alamanos ◽  
Stamatis Sfyris ◽  
Chrysostomos Fafoutis ◽  
Nikitas Mylopoulos
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Water Resources ◽  
Water Conservation ◽  
Water Demand ◽  
Management Scenarios ◽  
Sustainable Water Resources Management ◽  
The Future ◽  
The Impact ◽  
The City

Abstract The relationship between water abstraction and water availability has turned into a major stress factor in the urban exploitation of water resources. The situation is expected to be sharpened in the future due to the intensity of extreme meteorological phenomena, and socio-economic changes affecting water demand. In the city of Volos, Greece, the number of water counters has been tripled during the last four decades. This study attempts to simulate the city's network, supply system and water demand through a forecasting model. The forecast was examined under several situations, based on climate change and socio-economic observations of the city, using meteorological, water pricing, users' income, level of education, family members, floor and residence size variables. The most interesting outputs are: (a) the impact of each variable in the water consumption and (b) water balance under four management scenarios, indicating the future water management conditions of the broader area, including demand and supply management. The results proved that rational water management can lead to remarkable water conservation. The simulation of real scenarios and future situations in the city's water demand and balance, is the innovative element of the study, making it capable of supporting the local water utility.

Water Supply and Consumption Structure Change and Water Demand Forecast in Northern Shaanxi

2013 ◽  
Vol 353-356 ◽  
pp. 2943-2947
Author(s):  
Ying Dong ◽  
Xi Jun Wu
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Consumption ◽  
Water Demand ◽  
Structure Change ◽  
Demand Forecast ◽  
Consumption Structure ◽  
Water Demand Forecast ◽  
The Future ◽  
Northern Shaanxi

This paper analyzed the water resources and its availability distribution regularities in Northern Shaanxi; and the change laws of water consumption and supply in 1980-2010; according to the relevant planning goal and various industry water standard, forecasted the Northern Shaanxi water demand in future. Result shows that 2020 and 2030 water demand respectively is 1.9×109 m3 and 2.6×109 m3 in Northern Shaanxi. So the 1.6×109 m3 of available water resources at this stage can't meet the future requirements.

scholarly journals Long Storage as Water Source during Dry Period for Sarawak River Basin

2010 ◽  
Vol 1 (2) ◽  
pp. 1-5
Author(s):  
Nyambar S. ◽  
Bong C.H.J.
Keyword(s):  
Water Supply ◽  
River Basin ◽  
Water Demand ◽  
Water Source ◽  
Wet Season ◽  
Dry Period ◽  
Water Demands ◽  
Daily Water ◽  
The City ◽  
Long Storage

The recent drought in August 2009 which was triggered by the El Nino phenomenon had affected Kuching city to the extent that the city was facing critical shortage of water supply. In this study, the daily water demand for Kuching city was determined based on two major usages which were treated water demand for water supply production and for the flushing operation by the barrage in Sarawak River Basin for a selected year. These water demands were compared with the available supply from Sarawak River to determine the amount of water as storage to be prepared for critical shortage during the drier period. The results shows that the total maximum, average and minimum daily water demand for Sarawak River Basin are 8,715.264, 3,812.516 and 82.946 cumec.day respectively. The maximum daily demand was compared with the water supplied by Sarawak River Kiri at Kpg. Git station and from the flow mass curve; the needed storage is approximately 100 cumec.day for the critical period of May to October. A preliminary design for long storage has also been proposed to store water during the wet season to be used during the dry period.

GIS-based techniques for identification of potential artificial recharge areas in Kabul River basin, Afghanistan

2020 ◽  
Author(s):  
Abobakar Himat ◽  
Enrica Caporali
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Arid Regions ◽  
Population Increase ◽  
Domestic Water ◽  
Resources Management ◽  
The City ◽  
Domestic Water Supply ◽  
Semi Arid

<p>Under climate change conditions, arid and semi-arid regions need facing challenges of sustainable water resources management. Climate change in these regions is the accelerator of extreme events (droughts and flash floods) and the increase of water scarcity issues. Afghanistan is a landlocked country which is located in the south of Asia. Kabul River Basin (KRB) is the most populous region in the country. The total catchment area of KRB is about 108000 km<sup>2</sup>. The elevation ranges between 260 and 7600 m a.s.l.. There are some major tributaries in the basin such as Kabul, Logar, Kunar, and Panjsher. The study area has a semi-arid climate. In the Central Kabul sub-basin (capital of the country) the groundwater is more prone to declination due to the rapid population increase of internal displacement people. The groundwater is significantly affected by anthropogenic alterations especially in the Central Kabul sub-basin areas of the river basin. Groundwater overexploitation, droughts, and rapid population increase are among common phenomena in the KRB which greatly affect the availability of water resources. The domestic water supply for the city of Kabul is entirely dependent on groundwater. The city with an average per capita water supply of 20 l/day is among the most water-stressed cities in the world. Artificial Recharge (AR) applications can be used to mitigate these phenomena. Due to the highest evapotranspiration rate, special attention indeed, has been paid to AR in water resource management in arid and semi-arid regions.  </p><p>In this study, a detailed literature review on the existent AR types suitable for arid and semi-arid region and Geographic Information System (GIS) techniques, are used to identify the most suitable AR areas in the KRB. The hydrological behaviour of AR is investigated and the design criteria are defined. Infiltration, evapotranspiration, retention capacity and other hydrological parameters connected with hydraulic risk, underground recharge, soil moisture, and run-off are particularly analysed. Some parameters including topography, geology, hydrography, climate variables, existing water infrastructures, and demography are used for the identification of potential AR areas in the KRB. The analysed parameters are classified, weighted, and thematic maps are developed in GIS environment.</p><p>The implementation of AR could bring great benefits to the basin especially as far as the groundwater resources enhancement for domestic water supply and irrigation is concerned. The groundwater of the KRB is about 70% and 60% vulnerable to droughts and floods respectively. The groundwater recharge rate of the basin is about 90 mm/year. The use of Karez, springs, and wells are responsible for the overexploitation of the groundwater in the KRB. Suitable AR types and suitability maps of the study area are developed. The developed map can be used as a tool for the future implementation of AR techniques in the KRB. KRB is a trans-boundary river basin in which a part of the river basin is located in Pakistan. In trans-boundary water resources management, some measures should be taken to prevent water-related dispute issues.</p>

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

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.

Determination of the optimal capacity of a reservoir considering the effects of flood control volume change on its performance (case study: Darband dam, Iran)

2014 ◽  
Vol 9 (4) ◽  
pp. 509-518
Author(s):  
R. Shahsavan ◽  
M. Shourian
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Volume Change ◽  
Water Demand ◽  
Flood Control ◽  
Control Volume ◽  
Study Phase ◽  
Hydroelectric Power ◽  
Software Environment ◽  
Optimal Capacity

Water storage using dams is a perfect solution for agricultural, industrial, drinking water supply, flood control, hydroelectric power generation, and other purposes. Integrated management of water resources involves the development, management, protection, regulation and beneficial use of surface- and ground- water resources. The reliability of water supply reservoirs depends on several factors, e.g. the physical characteristics of the reservoir, the time series of river discharge, climatic conditions, the amount of demand, and the method of operation. If a portion of a dam's volume is kept empty for flood control, the confidence values of taking the bottom water demand will be reduced. In this paper, a yield-storage model developed in a MATLAB software environment is used to determine the optimal capacity of Darband dam in northeast Iran (the study phase). The reservoir's performance with respect to demand downstream, e.g. from industry and agriculture, and for potable use, was studied, and the results compared for scenarios in flood control volume change conditions. The results show that, for a capacity of 80 Mm3, the reliability values for meeting agricultural, environmental, and potable water demand are estimated at 0.922, 0.927, and 0.942, respectively. If the reservoir's capacity is changed from 80 to 350 Mm3, the reliability values increase by only about 7%.

Beijing water resources and the south to north water diversion project

2005 ◽  
Vol 32 (1) ◽  
pp. 159-163 ◽  
Author(s):  
Duan Wei
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Demand ◽  
Socioeconomic Development ◽  
Water Environment ◽  
Water Saving ◽  
Water Diversion ◽  
The South ◽  
Water Diversion Project ◽  
North Water

Beijing is located in a semiarid region, and water shortage is a common problem in the city. Along with the rapid increase in water demand, due to fast socioeconomic development and an increase in population, a shortage of water resources and a deterioration of the water environment have become obstacles to sustainable socioeconomic development in Beijing. In the long run, sustainable water resources management, water conservation, and completion of the south to north water diversion project will solve the problem. This paper introduces the water resources situation in Beijing; analyzes future water demand; and discusses the actions of water saving, nontraditional water resources exploitation, wetland construction, and water environment protection. The paper also explains the importance of the south to north water diversion project and the general layout of the water supply strategy, water distribution system, and methods to efficiently use the diverted water in Beijing.Key words: water resources, water supply, water saving, water recycling, water diversion.

The Observation of Rainwater Harvesting Potential in Mahasarakham University (Khamriang Campus)

2013 ◽  
Vol 807-809 ◽  
pp. 1087-1092 ◽  
Author(s):  
Nida Chaimoon
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Conservation ◽  
Rainwater Harvesting ◽  
Flow Analysis ◽  
Treatment Plant ◽  
Drainage System ◽  
Material Flow Analysis ◽  
Sustainable Living ◽  
Water Treatment Cost

Rainwater harvesting from roof is considered as valuable water resources. Material Flow Analysis (MFA) of water in Mahasarakham University (Khamriang Campus) shows that rainwater harvesting from roof can reduce water supply production by 7% and save more than 200,000 Bt/year for water treatment cost. The sensitivity analysis suggests that by 5% water supply conservation and 20% additional rainwater harvesting, MSU could have enough water resources. The rainwater is suitable to be substituted water for gardening due to the convenience to assemble an above ground storage tank or a pond to store harvested rainwater from roof. The current practice of rainwater is collected and discharged into drainage system and treated in wastewater treatment plant. Utilisation of rainwater harvested could reduce wastewater amount that must be treated by 9%. Rainwater harvesting and reuse should be promoted in campus in order to encourage sustainable living and water conservation policy.

scholarly journals Optimal Water Resources Regulation for the Pond Irrigation System Based on Simulation—A Case Study in Jiang-Huai Hilly Regions, China

2019 ◽  
Vol 16 (15) ◽  
pp. 2717 ◽  
Author(s):  
Shangming Jiang ◽  
Shaowei Ning ◽  
Xiuqing Cao ◽  
Juliang Jin ◽  
Fan Song ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Deficit ◽  
Water Demand ◽  
Water Allocation ◽  
Irrigation System ◽  
Domestic Water ◽  
Technological Support ◽  
Domestic Water Demand ◽  
Irrigation Districts ◽  
Regulation Model

Due to the importance and complexity of water resources regulations in the pond irrigation systems of the Jiang-Huai hilly regions, a water allocation simulation model for pond irrigation districts based on system simulation theory was developed in this study. To maximize agricultural irrigation benefits while guaranteeing rural domestic water demand, an optimal water resources regulation model for pond irrigation districts and a simulation-based optimal water resources regulation technology system for the pond irrigation system were developed. Using this system, it was determined that the suitable pond coverage rate (pond capacity per unit area) was 2.92 × 105 m3/km2. Suitable water supply and operational rules for adjusting crop planting structure were also developed the water-saving irrigation method and irrigation system. To guarantee rural domestic water demand, the multi-year average total irrigation water deficit of the study area decreased by 4.66 × 104 m3/km2; the average multi-year water deficit ratio decreased from 20.40% to 1.18%; the average multi-year irrigation benefit increased by 1.11 × 105 RMB (16,128$)/km2; and the average multi-year revenue increased by 6.69%. Both the economic and social benefits were significant. The results of this study provide a theoretical basis and technological support for comprehensive pone governance in the Jiang-Huai hilly regions and promote the establishment of a water allocation scheme and irrigation system for pond irrigation districts, which have practical significance and important application value.

scholarly journals Analysis Of Raw Water Supply In Pucang Gading Housing Complex, District Of Demak To Preparation Of Water Resources And Water Resources Management

2018 ◽  
Vol 73 ◽  
pp. 03012
Author(s):  
Solikhul Abdi ◽  
Sudarno
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Water Supply ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Source ◽  
Water Sources ◽  
Service Area ◽  
Raw Water ◽  
Housing Complex

Pucang Gading Housing Complex is an area within the Village Batursari, District of Demak with a population of 2018 as many as 44,257 inhabitants. Raw water service system Mranggen Unit is divided into 5 areas of service (service area Mranggen, Batursari I, Batursari II, Batursari III and Kebon) which utilize raw water source of water treatment plant (IPA Waru) and 8 Wells In a total discharge of 120 liter/second. The number of home connections in Pucang Gading area is currently 3,374 house connections, with a total water usage 14.25 liter/second Water discharges from clean water sources in Pucang Gading region are currently not maximally available to supply water to Pucang Gading service area. In this research will know the problems and readiness that exist by looking from the achievement of Medium Term Development Plan of Demak Regency Year 2016-2021. This research uses SWOT analysis method that is internal and external factors. The selection of raw water sources for drinking water should pay attention to aspects of quality, quantity and continuity. Demak Regency has the potential of surface water either river/ reservoir/dam. The problems and challenges of drinking water supply include issues of safe access to water supply, and regulation of groundwater utilization for the community.

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