scholarly journals River water quality modelling under drought situations – the Turia River case

2016 ◽  
Vol 374 ◽  
pp. 187-192
Author(s):  
Javier Paredes-Arquiola ◽  
Javier Macián ◽  
María Pedro-Monzonís ◽  
Edgar Belda ◽  
Andrea Momblanch ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
River Water ◽  
Environmental Flows ◽  
Water Shortage ◽  
Drought Event ◽  
Water Resource System ◽  
Drought Conditions ◽  
Common Problems ◽  
Water Uses

Abstract. Drought and water shortage effects are normally exacerbated due to collateral impacts on water quality, since low streamflow affects water quality in rivers and water uses depend on it. One of the most common problems during drought conditions is maintaining a good water quality while securing the water supply to demands. This research analyses the case of the Turia River Water Resource System located in Eastern Spain. Its main water demand comes as urban demand from Valencia City, which intake is located in the final stretch of the river, where streamflow may become very low during droughts. As a result, during drought conditions concentrations of pathogens and other contaminants increase, compromising the water supply to Valencia City. In order to define possible solutions for the above-mentioned problem, we have developed an integrated model for simulating water management and water quality in the Turia River Basin to propose solutions for water quality problems under water scarcity. For this purpose, the Decision Support System Shell AQUATOOL has been used. The results demonstrate the importance of applying environmental flows as a measure of reducing pollutant's concentration depending on the evolution of a drought event and the state of the water resources system.

scholarly journals Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium

2012 ◽  
Vol 16 (8) ◽  
pp. 2405-2415 ◽  
Author(s):  
J. Rozemeijer ◽  
C. Siderius ◽  
M. Verheul ◽  
H. Pomarius
Keyword(s):  
Water Quality ◽  
River Water ◽  
Transport Model ◽  
Water Quality Monitoring ◽  
Water Shortage ◽  
Large River ◽  
Negative Consequences ◽  
Spatial Image ◽  
Dry Conditions ◽  
Anthropogenic Gadolinium

Abstract. Diverting river water into agricultural areas or nature reserves is a frequently applied management strategy to prevent fresh water shortage. However, the river water might have negative consequences for chemical and ecological water quality in the receiving water bodies. This study aimed to obtain a spatial image of the diverted river water propagation into a hydrologically complex polder area, the polder Quarles van Ufford in The Netherlands. We used anthropogenic gadolinium (Gd-anomaly) as a tracer for river water that was diverted into the polder. A clear reduction in the river water contribution was found between very dry conditions on 5 August 2010 and very wet conditions on 22 October. Despite the large river water impact on 5 August, the diverted river water did not propagate up into the small agricultural headwater ditches. Gadolinium proved to be an effective tracer for diverted river water in a polder system. We applied our results to upgrade the interpretation of water quality monitoring data and to validate an integrated nutrient transport model.

scholarly journals Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium

2012 ◽  
Vol 9 (1) ◽  
pp. 1411-1434
Author(s):  
J. Rozemeijer ◽  
C. Siderius ◽  
M. Verheul ◽  
H. Pomarius
Keyword(s):  
Water Quality ◽  
River Water ◽  
Water Quality Monitoring ◽  
Water Shortage ◽  
Negative Consequences ◽  
Spatial Image ◽  
Dry Conditions ◽  
Spatial Propagation ◽  
Gd Anomaly ◽  
Anthropogenic Gadolinium

Abstract. The inlet of diverted river water into agricultural areas or nature reserves is a frequently applied management strategy to prevent fresh water shortage. However, the inlet water might have negative consequences for water quality in the receiving water bodies. This study aimed to obtain a spatial image of the inlet water propagation into a hydrological complex polder area. We used anthropogenic gadolinium (Gd-anomaly) as a tracer for diverted river water. A clear reduction in the river water contribution was found from very dry conditions on 5 August 2010 to very wet conditions on 22 October. Despite the large inlet water impact on 5 August, the diverted river water did not propagate up into the small agricultural headwater ditches. Gadolinium proved to be an effective tracer for diverted river water in a polder system. We applied our results to upgrade the interpretation of water quality monitoring data and to validate our integrated nutrient transport models.

scholarly journals PERAN DINAS LINGKUNGAN HIDUP KOTA SURABAYA DALAM PENGENDALIAN PENCEMARAN AIR SUNGAI BRANTAS

2017 ◽  
Vol 1 (2) ◽  
pp. 131
Author(s):  
Martika Dini Syaputri
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Water Supply ◽  
River Water ◽  
Industrial Waste ◽  
Water Users ◽  
Downstream Region ◽  
Strategic Role

<p>Kondisi sungai Brantas Kota Surabaya semakin memprihatinkan akibat pencemaran dari limbah rumah tangga maupun limbah industri. Sebagai pemasok bahan baku PDAM, kualitas sungai Brantas harus diperhatikan sehingga tidak menimbulkan kerugian bagi masyarakat pengguna air. Letak sungai yang berada di kawasan hilir menjadikan beban pencemaran yang dialami sungai Brantas semakin berat serta lemahnya pengawasan dan penegakan hukum juga ikut mempengaruhi penurunan kualitas air sungai Brantas. Penelitian ini dilakukan untuk menunjukkan peran strategis Dinas Lingkungan Hidup Kota Surabaya dalam pengendalikan pencemaran air sungai Brantas baik dalam pengeluaran izin, pengawasan, pemberian sanksi maupun upaya dalam penanggulangan pencemaran.</p><p> </p><p><em>The condition of Brantas river in Surabaya is deteriorating as a result of contamination </em><em>from household as well as industrial waste. As the provider of water for municipal fresh </em><em>water supply service, the quality of Brantas river must be considered so as not to cause </em><em>harm to the water users. The river part which is located in the downstream region makes </em><em>the pollution even more severe. This condition is worsened by the lack of scrutiny and law </em><em>enforcement efforts which ultimately also cause the degradation of the water quality of </em><em>Brantas river. This study was performed to demonstrate the strategic role of the </em><em>Environmental Office of Surabaya Municipality in controlling Brantas river water pollution </em><em>in terms of the issuance of licenses, supervision, implementation of sanctions and </em><em>measures taken to prevent water pollution.</em></p>

Study of Recreational Use of Sydney Water Board and Fish River Water Supply Storages (Australia)

1989 ◽  
Vol 21 (2) ◽  
pp. 119-122
Author(s):  
I. H. Sharp ◽  
M. A. Schell
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Water Supply ◽  
River Water ◽  
Control Measures ◽  
Water Quality Control ◽  
Community Attitudes ◽  
Water Board ◽  
Water Based ◽  
Recreational Use

Existing and potential recreational uses in a number of very different water supply catchments managed by two major N.S.W. authorities were investigated. Community attitudes to recreational use of both land based and water based activities were analysed together with reactions to increased charges to cover costs of ensuring safe water quality. Threats to water quality were studied and additional management and water quality control measures formulated.

scholarly journals Assessment of rainwater harvesting for domestic water supply in palestinian rural areas

2018 ◽  
Vol 245 ◽  
pp. 06012 ◽  
Author(s):  
Nidal Mahmoud ◽  
William Hogland ◽  
Michael Sokolov ◽  
Vasily Rud ◽  
Nikita Myazin
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Rural Areas ◽  
Rainwater Harvesting ◽  
Quality Measurement ◽  
Water Shortage ◽  
Economic Feasibility ◽  
Domestic Water ◽  
Ancient Times ◽  
Domestic Water Supply

Rainwater harvesting in Palestine is a principal water resource that had been adopted since ancient times. However, the system had not been subjected to a thorough assessment. This paper aims at assessing the feasibility of rainwater harvesting for domestic water supply in Palestinian rural areas with special emphasis on socio-cultural and financial aspects as well as harvested water quality. Different methods were used to collect necessary data from a case study village, including literature review, observations, questionnaires and water quality measurement of freshly fallen and harvested rainwater samples. Moreover, domestic water demand and water supply from such a system were compared, and economic feasibility of applying this system was checked. The results revealed that harvested rainwater is a viable resource that can contribute considerably to minimizing water shortage.

scholarly journals Is water shortage risk decreased at the expense of deteriorating water quality in a large water supply reservoir?

2019 ◽  
Vol 165 ◽  
pp. 114984 ◽  
Author(s):  
Zhihao Xu ◽  
Ximing Cai ◽  
Xinan Yin ◽  
Meirong Su ◽  
Yiping Wu ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Water Shortage ◽  
Water Supply Reservoir ◽  
Large Water

Study on Ecological Water Diversion Optimization Based on the One-Dimensional River Network Model – With Wenrui River System in North of Fanyou as an Example

2014 ◽  
Vol 955-959 ◽  
pp. 3138-3144
Author(s):  
Ke Ke Hu ◽  
Hai Bo Xu ◽  
Zhen Hua Peng
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
River Water ◽  
Network Model ◽  
River System ◽  
River Water Quality ◽  
Water Diversion ◽  
Large Area ◽  
One Dimensional ◽  
The One

Wenrui river system in the north of Fanyou is located in Wenzhou city. In recent years, river water quality has been improved by the implementation of ecological water diversion with the phenomenon of large area of black smelly basically eliminated. But there is still no fundamental improvement in river water environment. In this paper, sluice scheduling, scheduling of water supply and optimized control scheme is studied based on the one-dimensional river network model, on the basis of current situation of ecological operation, through analyzing the characteristics of river water system in north of Fanyou, water source and the distribution of main control sluice. It is turned out that water quality of Wenrui river system in north of Fanyou cannot be comprehensively improved by ecological water diversion and can only be targeted to the important areas and key rivers, due to the large area, complex river net and limited ecological water supply. Pollution reduction is the most fundamental way to improve river water quality. But currently, on the premise of difficultly cutting down complete pollutions, river water quality can be improved to a certain extent by ecological water diversion with Puzhou sluice as the main control sluice, combined with other sluices for joint scheduling. In the future, if pollution load can be reduced and enough water supply can be guaranteed, river water quality can reach class II or III in the key areas along the Ou River and river water in other areas also has different degrees of improvement.

scholarly journals A Critical Analysis of the Water Quality Impacts on Water Resources in the Athi River Drainage Basin, Kenya

2021 ◽  
Author(s):  
Shadrack M. Kithiia
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Resources ◽  
Human Activities ◽  
Critical Analysis ◽  
Drainage Basin ◽  
Water Shortage ◽  
Mitigation Measures ◽  
Quality Degradation ◽  
Water Uses

This paper presents a critical analysis of the water quality changes and their impacts on water resources within the Athi River Catchment and its implications of the people’s livelihoods. The paper analyses the effects of land use activities on water quality in the headwater areas of the basin which has a profound impacts on the downstream water uses within the basin. The paper in addition makes an attempt to relate the impacts of human activities on water quality degradation trends within the basin against the available and potential water resources in the basin. The Athi River is the second largest in Kenya and traverses areas of diverse land use activities from the more agricultural head water areas through the industrial hub of Kenya in Nairobi to the Indian Ocean discharging its waters near Malindi town north of Mombasa. The paper gives a detailed analysis of the impacts of human activities on the water resources in regard to water quality degradation, pollution and mitigation measures. The study was based on field data collection and measurements and laboratory analysis. The researcher used 10 sampling points located within the Nairobi sub-basin and distributed along the river profile to examine the trends in water quality degradation and its implication on human livelihoods in the basin. The researcher noted a declining trend in water quality status downstream the river profile. A close analysis of the water situation in the basin paints a blink future on the available water resources in the basin against the projected water uses and increasing population compounded by the impacts of water pollution and climate change. This is likely to increase incidences of water shortage and food insecurity in many parts of the basin. The researcher recommends more investments in water harvesting infrastructure, environmental conservation and adoption of modern water management technologies.

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