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Effects of micronutrient niacin on treatment efficiency of textile wastewater

  • Liang Wei
  • Hu Hongying
  • Gu Xin
  • Che Yuling
  • Wang Hui
  • Guo Yufeng
  • Song Yudong
Article
  • 70 Downloads

Abstract

Textile wastewater is well known as one of the wastewaters to be most difficultly treated. The effects of niacin on textile wastewater treatment efficiency were studied by continuous addition of 1.0 mg·L−1 niacin, the physical and chemical indexes of the water samples, such as COD, ammonia and dehydrogenase activities, were analyzed every day with standard methods, and obvious improvement in wastewater treatment performance was achieved. The exact results showed that: ① Niacin could improve the COD removal efficiency significantly with removal rates being 1.31 times as to those of the control system; ② under this experimental condition, addition of niacin had almost no effect on the removal of ammonia; ③ Addition of niacin could improve the activity of dehydrogenase by 130%. It proved that the biological treatment performance of textile wastewater treatment system probably could be optimized through micronutrient niacin supplement.

Key words

textile wastewater biological treatment niacin COD dehydrogenase activities 

CLC number

X 703 

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Copyright information

© Springer 2006

Authors and Affiliations

  • Liang Wei
    • 1
    • 2
  • Hu Hongying
    • 2
  • Gu Xin
    • 2
  • Che Yuling
    • 2
  • Wang Hui
    • 2
  • Guo Yufeng
    • 2
  • Song Yudong
    • 2
  1. 1.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of HydrobiologyChinese Academy of SciencesWuhan, HubeiChina
  2. 2.Environment Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and EngineeringTsinghua UniversityBeijingChina

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