Water Science and Engineering 2011, 4(4) 374-385 DOI:   10.3882/j.issn.1674-2370.2011.04.002  ISSN: 1674-2370 CN: 32-1785/TV

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Keywords
black water aggregation
water quality indicator
control measure
Taihu Lake
Authors
LU Gui-Hua
MA Qian
ZHANG Jian-Hua
PubMed
Article by Lu,G.H
Article by Ma,q
Article by Zhang,J.H

Analysis of black water aggregation in Taihu Lake

Gui-huaLU*1, Qian MA2, Jian-hua ZHANG3

1. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, P. R. China
2. Hydrology and Water Resources Investigation Bureau of Jiangsu Province, Nanjing 210029, P. R. China
3. Water Resources Department of Jiangsu Province, Nanjing 210029, P. R. China

Abstract

Black water aggregation (BWA) in Taihu Lake is a disaster for the lake environment. It is a phenomenon resulting from water environmental deterioration and eutrophication caused by accumulation of pollutants in the lake, according to research on the water quality, pollutants of BWA, and occurrence mechanisms of BWA. Dead algae are the material base of BWA, the polluted sediment is an important factor for the formation of BWA, and hydrological and meteorological conditions such as sun light, air temperature, wind speed, and water flow are the other factors that may lead to the formation of BWA. Thioether substances such as dimethyl trisulfide are the representative pollutants of BWA. Parameters such as chlorophyll-a, DO, pH, and water temperature are sensitive indicators of BWA. Measures such as algae collection, ecological dredging, pollution control, and water diversion from the Yangtze River to the lake, are effective, and strengthening aeration is an emergency measure to control BWA.

Keywords black water aggregation   water quality indicator   control measure   Taihu Lake  
Received 2011-05-31 Revised 2011-10-16 Online: 2011-12-30 
DOI: 10.3882/j.issn.1674-2370.2011.04.002
Fund:
This work was supported by the National Water Project of China (Grant No. 2008ZX07101-011).
Corresponding Authors: Gui-hua LU
Email: lugh@hhu.edu.cn
About author:

References:

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