Incorporating Eco-environmental Water Requirements in Integrated Evaluation of Water Quality and Quantity—A Study for the Yellow River

2008 ◽  
Vol 23 (6) ◽  
pp. 1067-1079 ◽  
Author(s):  
Xinghui Xia ◽  
Zhifeng Yang ◽  
Yuxiang Wu
Keyword(s):  
Water Quality ◽  
Yellow River ◽  
Environmental Water ◽  
The Yellow River ◽  
Water Requirements ◽  
Water Quality And Quantity

Integrated Evaluation of Water Quality and Quantity of the Yellow River

2004 ◽  
Vol 29 (4) ◽  
pp. 423-431 ◽  
Author(s):  
Xinghui Xia ◽  
Zhifeng Yang ◽  
Guo H. Huang ◽  
Imran Maqsood
Keyword(s):  
Water Quality ◽  
Yellow River ◽  
The Yellow River ◽  
Water Quality And Quantity

scholarly journals Using a three-tier model to optimize the allocation of river water resources to meet eco-environmental water requirement targets

2017 ◽  
Vol 18 (4) ◽  
pp. 1222-1233
Author(s):  
Ze-ning Wu ◽  
Qian-qian Cao ◽  
Cui-mei Lv ◽  
Hui-liang Wang ◽  
Zi-hao Jiang
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
River Water ◽  
Oxygen Demand ◽  
Environmental Water ◽  
Ammonia Nitrogen ◽  
Clean Water ◽  
Water Requirements ◽  
Current State ◽  
Water Quality And Quantity

Abstract It is difficult to simultaneously manage the dynamic demands for river water quality and quantity, and reconcile the contradiction between socio-economic and eco-environmental water consumption. As a solution, we proposed a three-tier model to optimize the distribution of river water resources. Using three constraint conditions, namely the ratio of wastewater to clean water, the eco-environmental water requirements of each node and the use of wetland projects, we determined various water quantity and quality allocation scenarios. We tested the model on the Qingyi River, and found that, for the recommended scenario that involved enhanced water-saving, a wastewater/clean water ratio and wetlands, more than 80% of the eco-environmental water requirements of each node except for the Luma section were achieved for each month. While the water quality in some individual river sections did not meet the standards for a few months of the year, the water quality of the remaining sections could be improved from class V, the current state, to class IV, and ammonia nitrogen and chemical oxygen demand (COD) standards could be achieved 82% and 96% of the time, respectively. These results show that the proposed model is effective and fit for purpose.

scholarly journals Hydrogeochemistry and Quality Assessment of Shallow Groundwater in the Southern Part of the Yellow River Alluvial Plain (Zhongwei Section), Northwest China

2014 ◽  
Vol 18 (1) ◽  
pp. 27-38 ◽  
Author(s):  
Peiyue Li ◽  
Jianhua Wu ◽  
Hui Qian
Keyword(s):  
Water Quality ◽  
Yellow River ◽  
Saturation Index ◽  
Shallow Groundwater ◽  
Northwest China ◽  
Alluvial Plain ◽  
Total Hardness ◽  
The Yellow River ◽  
Human Consumption ◽  
Mineralized Water

<p class="MsoNormal" style="line-height: 200%;">Statistical analyses, a Piper diagram, the saturation index and the correlations of chemical parameters were used to reveal the hydrogeochemistry and hydrogeochemical evolution of shallow groundwater in the southern part of the Zhongwei section of the Yellow River alluvial plain. The water quality for agricultural and domestic uses was also assessed in the study. The results suggest that the shallow groundwater in the study area is fresh to moderately mineralized water. Higher Ca<sup>2+</sup> and HCO<sub>3</sub><sup>-</sup> are observed in the less mineralized water, whereas Na<sup>+</sup> and SO<sub>4</sub><sup>2-</sup> are common ions in the highly mineralized water. The major hydrochemical facies for groundwater with total dissolved solids (TDS) &lt;1 g/L are HCO<sub>3</sub>-Ca·Mg and HCO<sub>3</sub>-Ca·Na·Mg, and for groundwater with TDS &gt; 1 g/L, SO<sub>4</sub>·Cl-Na and SO<sub>4</sub>·Cl-Na·Mg·Ca are the predominant hydrochemical types. The main reactions in the groundwater system are the dissolution/precipitation of gypsum, fluorite, halite, calcite and dolomite. Cation exchange is also important in controlling the groundwater chemistry. The water samples assessed in the paper are of acceptable quality for agricultural use, but most of them are not fit for direct human consumption (drinking). TDS, total hardness (TH), Cl<sup>-</sup> and SO<sub>4</sub><sup>2-</sup> are the main indices that result in the poor drinking water quality.</p><p class="MsoNormal" style="line-height: 200%;"> </p><p class="MsoNormal" style="line-height: 200%;"><strong>Resumen</strong></p><p>Análisis estadísticos, un diagrama de Piper, el índice de saturación y la correlación de los parámetros químicos fueron utilizados para revelar la hidrogeoquímica y la evolución hidrogeoquímica de las aguas subterráneas poco profundas en la parte sur de la sección Zhongwei en la planicie aluvial del río Amarillo. La calidad del agua para el uso doméstico y agrícola también fue evaluada en este estudio. Los resultados sugieren que las aguas subterráneas poco profundas en el área de estudio son entre frescas y moderadamente mineralizadas. Un índice mayor de Ca2+ y HCO3- se observó en las aguas menos mineralizadas, mientras que Na+ y SO42- son iones comunes en las aguas altamente mineralizadas. Los perfiles hidroquímicos predominantes para las aguas subterráneas con Total de Sólidos Disueltos (TDS) &lt;1 g/L son HCO3-Ca·Mg y HCO3-Ca·Na·Mg, y para las aguas subterráneas con TDS &gt;1 g/L, SO4·Cl-Na y SO4·Cl-Na·Mg·Ca. Las mayores reacciones en el sistema de aguas subterráneas son la disolución/ precipitación de yeso, fluorita, halita, calcita y dolomita. El intercambio de cationes también es importante en el control de la química de las aguas subterráneas. Las muestras de agua evaluadas en este manuscrito son de calidad aceptable para el uso agrícola, pero la mayoría no son aptas para el consumo humano. El índice TDS, la dureza total del agua (TH), Cl- y SO42- son las razones principales que influyen en la baja calidad de esta agua.</p>

scholarly journals Simulation of the Transboundary Water Quality Transfer Effect in the Mainstream of the Yellow River

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 974 ◽  
Author(s):  
Xuan Zhang ◽  
Jungang Luo ◽  
Jin Zhao ◽  
Jiancang Xie ◽  
Li Yan ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Water Consumption ◽  
Inner Mongolia ◽  
Yellow River ◽  
Transfer Effect ◽  
Simulation System ◽  
The Yellow River ◽  
Transboundary Water ◽  
Technical Problems

In order to not only solve the technical problems of quantifying the degree and range of the effect that is caused by the water quality of upstream on that of downstream portions of a river, and of dividing the responsibility of transboundary water pollution, but also to tackle the difficulty in adapting to dynamic changes of the traditional water quality model in terms of practical application, pollutant discharge and water consumption were taken as the main influence factors to build the transboundary water quality transfer effect model. Supported by a comprehensive integration platform, the transboundary water quality transfer effect simulation system of the Yellow River mainstream was constructed. The simulation results show that the concentration decreases exponentially along the range. Gansu, Ningxia, and Inner Mongolia had a more significant effect of exceeding standard water consumption on pollution, while Ningxia, Inner Mongolia, Shaanxi, and Shanxi had a more distinct contribution to the over standard pollution discharge effect. The proposed model and simulation system can provide new methods and instruction for quantifying the degree and range of transboundary water pollution, as well as dividing the responsibility for water environment compensation.

Economic and Ecological Benefits on the Implementation of Integrated Water Allocation in the Yellow River

2012 ◽  
Vol 212-213 ◽  
pp. 560-563
Author(s):  
Chen Guang Xu ◽  
Mai Huan Zhao ◽  
Li Yuan He
Keyword(s):  
Water Consumption ◽  
Water Allocation ◽  
Yellow River ◽  
Yellow River Basin ◽  
Environmental Water ◽  
Base Flow ◽  
The Yellow River ◽  
Healthy Life ◽  
Ecological Benefits ◽  
The Yellow River Basin

Integrated water allocation in the Yellow River has played an important role in maintaining the healthy life of the Yellow River and realizing its functionally unabated flow. After the integrated water allocation, the average surface water consumption in the Yellow River Basin decreased 46*108 m3, the average annual benefits reached 12.643 billion Yuan, and the GDP accumulatively increased 3504*108 Yuan. The Yellow River has flowed unabated for 10 successive years, and the eco-environmental water consumption in the lower reaches during the non-flood season has increased 14.6*108 m3, which guaranteed the base flow of the Yellow River

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