Volume 8 Issue 5
Sep.  2018
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Article Navigation >  Journal of Environmental Engineering Technology  > 2018  >  8(5): 527-532
ZHANG Qian, LIU Xiaodong, DENG Feifan. Research on removal of Taihu Lake algal source DON by KMnO4 pre-oxidation and coagulation sedimentation[J]. Journal of Environmental Engineering Technology, 2018, 8(5): 527-532. doi: 10.3969/j.issn.1674-991X.2018.05.069
Citation: ZHANG Qian, LIU Xiaodong, DENG Feifan. Research on removal of Taihu Lake algal source DON by KMnO4 pre-oxidation and coagulation sedimentation[J]. Journal of Environmental Engineering Technology, 2018, 8(5): 527-532. doi: 10.3969/j.issn.1674-991X.2018.05.069
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Research on removal of Taihu Lake algal source DON by KMnO4 pre-oxidation and coagulation sedimentation

doi: 10.3969/j.issn.1674-991X.2018.05.069

  • Research Institute for National Defense Engineering, Academy of Military Science PLA China, Beijing 100036, China

  • Received Date: 2018-03-26
  • Publish Date: 2018-09-20
    Abstract
  • The removal efficiency of dissolved organic nitrogen (DON) in the algae-laden water using KMnO4 pre-oxidation and enhanced coagulation sedimentation was studied by experiment. The mechanism was analyzed using molecular weight distribution measuring method and two-dimensional electrophoresis method. The results showed that the optimal working condition happened when KMnO4 dosage was 1.00 mg∕L, the pre-oxidation time were controlled in 30 min, and the PAC dosage was 20 mg∕L, then the DON removal rates reached 36.0%, the turbidity and algae removal rates reached 88.3% and 93.0%. KMnO4 pre-oxidation enhanced coagulation sedimentation can be used as an emergency treatment option for the removal of DON when the source water algae bloom.

     

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