Water quality variation of mining-subsidence lake during the initial stage: cases study of Zhangji and Guqiao Mines

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• 作者：Ting-yu Fan (1)
  Jia-ping Yan (1)
  Shun Wang (1)
  Bing Zhang (1)
  Shu-xian Ruan (1)
  Mei-li Zhang (1)
  Shou-qin Li (2) (3)
  Yong-chun Chen (2) (3)
  Jin Liu (2) (3)
  
• 关键词：variation of water quality ; mining subsidence lake ; initial stage of water storing
• 刊名：Journal of Coal Science and Engineering (China)
• 出版年：2012
• 出版时间：September 2012
• 年：2012
• 卷：18
• 期：3
• 页码：297-301
• 全文大小：638KB
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• 作者单位：Ting-yu Fan (1)
  Jia-ping Yan (1)
  Shun Wang (1)
  Bing Zhang (1)
  Shu-xian Ruan (1)
  Mei-li Zhang (1)
  Shou-qin Li (2) (3)
  Yong-chun Chen (2) (3)
  Jin Liu (2) (3)
  
  1. School of Earth and Environment, Anhui University of Science and Technology, Huainan, 232001, China
  2. Huainan Mining Group, Huainan, 232001, China
  3. National Engineering Laboratory of Ecological Environment Protection for Coal Mines, Huainan, 232001, China
  
• ISSN：1866-6566

文摘

Four quarters-water collecting and monitoring samples were done in the mining subsidence lakes of different water storing periods (2 to 7 years), considering the water storing time and pollution sources state of the subsidence lakes. The following indexes were discussed such as organic indexes (TOC, CODMn, BOD, COD), nutrient salts (TN, NH 4 + , NO 3 ?/sup> , NO 2 ?/sup> , Kjeldahl Nitrogen, TP, PO 4 3?/sup> ), etc. It is shown that water quality of the mining subsidence lake during the initial stage (2 years to 7 years) can stay relatively stable with a fluctuation during different quarters in a year, which can reach class III or IV of the Surface Water Environmental Quality Standard.