Authors:
Zhuo Huang
1
;
Min Liu
1
;
Weike Wang
2
;
Wenliang Zhai
1
;
Liangjing Zhou
3
;
Yuyi Ke
3
and
Li Lin
1
Affiliations:
1
Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province and Wuhan, China
;
2
Basin Water Environmental Research Department, Changjiang River Scientific Research Institute and Wuhan, China
;
3
Changjiang Institute of Survey, Planning, Design and Research and Wuhan, China
Keyword(s):
Angqu River, water quality, site selection, simulation and prediction
Abstract:
There is abundant water resource in the Angqu river, but it is excessive of arsenic, iron, manganese and other substances, which seriously threatens the water supply safety in Changdu City. It is imperative to build a water reservoir that is safe and reliable as a water source, but it is not easy to identify its site. For this, field surveys, laboratory tests and mathematical simulation were used to analyze the impact of water quality of the Angqu River on the site selection of water supply reservoirs, stimulate and predict the changes on water quality of the proposed reservoir. The results showed that arsenic and iron contents were excessive in the Angqu River due to the geological background conditions. Arsenic content in the water of Angqu River increased with hot spring containing high concentration of arsenic flowing into. The adsorption experiment and water quality stimulation implied that the arsenic content in water of the proposed large reservoir at upper reach of Zongtongka
Village could meet the Class III standard of surface water quality, and the iron concentration in the river reach in front of the dam could meet the limit of surface water quality standard. It is suggested to conduct long-term water quality safety monitoring and evaluation of the Angqu River, and divert and purify the branches excessive of As.
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