Assessment of Water Quality Improvements Using the Hydrodynamic Simulation Approach in Regulated Cascade Reservoirs: A Case Study of Drinking Water Sources of Shenzhen, China

doi:10.3390/w9110825

IGSNRR OpenIR

	Assessment of Water Quality Improvements Using the Hydrodynamic Simulation Approach in Regulated Cascade Reservoirs: A Case Study of Drinking Water Sources of Shenzhen, China
	Hua, Ruixiang 1,2; Zhang, Yongyong1
	2017-11-01
Source Publication	WATER
ISSN	2073-4441
Volume	9 Issue:11 Pages:18
Corresponding Author	Zhang, Yongyong(zhangyy003@igsnrr.ac.cn)
Abstract	Water quality safety is of critical importance in environmental improvement, particularly with respect to drinking water resources worldwide. As the main drinking water sources in Shenzhen, China, the cascade reservoirs comprising the Shiyan, Tiegang, and Xili Reservoirs are highly regulated and have experienced water quality deterioration in recent years. In this study, a three-dimensional hydrodynamic and water quality model was established using the Environmental Fluid Dynamics Code (EFDC) for the cascade reservoirs. The relationships between water quality and improvement measures were quantified and the main pollution sources for individual reservoirs were identified. Results showed that the hydrodynamic and water quality model well captured the spatial and temporal variations of water level, the permanganate concentration index (CODMn), and total nitrogen (TN), with high resolution in the cascade reservoirs. The correlation coefficients between simulations and observations were close to 1.00 for water levels, and over 0.50 for CODMn and TN concentrations. The most effective methods for water quality improvement were the reduction of the runoff load for TN and transferred water load for CODMn in the Shiyan Reservoir, reduction of the transferred water load in the Tiegang Reservoir, and an increase in transfer water volume, especially in the flood season, in the Xili Reservoir. Internal pollution sources also played an important role in water pollution, and thus sedimentation should be cleaned up regularly. This study is expected to provide scientific support for drinking water source protection and promote the application of hydrodynamic model in water quality management.
Keyword	cascade reservoirs EFDC water quality improvement drinking water sources
DOI	10.3390/w9110825
WOS Keyword	MODELING APPROACH ; CHESAPEAKE BAY ; EFDC MODEL ; SCENARIOS ; NITROGEN ; RIVER ; LAKE ; ENVIRONMENT ; DOWNSTREAM ; PHOSPHORUS
Indexed By	SCI
Language	英语
Funding Project	Natural Science Foundation of China[41671024] ; China Youth Innovation Promotion Association CAS[2014041] ; Program for Bingwei Excellent Talents in IGSNRR CAS[2015RC201]
Funding Organization	Natural Science Foundation of China ; China Youth Innovation Promotion Association CAS ; Program for Bingwei Excellent Talents in IGSNRR CAS
WOS Research Area	Water Resources
WOS Subject	Water Resources
WOS ID	WOS:000416798300011
Publisher	MDPI AG
Citation statistics	Cited Times:2[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/56805
Collection	中国科学院地理科学与资源研究所
Corresponding Author	Zhang, Yongyong
Affiliation	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Hua, Ruixiang,Zhang, Yongyong. Assessment of Water Quality Improvements Using the Hydrodynamic Simulation Approach in Regulated Cascade Reservoirs: A Case Study of Drinking Water Sources of Shenzhen, China[J]. WATER,2017,9(11):18.
APA	Hua, Ruixiang,&Zhang, Yongyong.(2017).Assessment of Water Quality Improvements Using the Hydrodynamic Simulation Approach in Regulated Cascade Reservoirs: A Case Study of Drinking Water Sources of Shenzhen, China.WATER,9(11),18.
MLA	Hua, Ruixiang,et al."Assessment of Water Quality Improvements Using the Hydrodynamic Simulation Approach in Regulated Cascade Reservoirs: A Case Study of Drinking Water Sources of Shenzhen, China".WATER 9.11(2017):18.

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