2007 Volume 1 Issue 10
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Zhao Meng, Zheng Fahong, Wang Pingyan. A study on solidification of sludge with arsenic using fly ash[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 112-115.
Citation: Zhao Meng, Zheng Fahong, Wang Pingyan. A study on solidification of sludge with arsenic using fly ash[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 112-115.
shu

A study on solidification of sludge with arsenic using fly ash

  • 1.

    Kunming University of Science and Technology, Kunming 650093

  • 2.

    Kunming University of Science and Technology, Kunming 650094

  • 3.

    Kunming University of Science and Technology, Kunming 650095

  • Received Date: 23/03/2007
    Accepted Date: 11/12/2006
    Fund Project:
  • The solidification of the sludge in the sulphuric acid wastewater treatment system with fly ash and cement was studied. The leaching rate of arsenic in the sludge exceeds the standard．The best solidifying proportioning is: cement∶flyash∶sludge=1∶1∶2. The leaching conccentration can get a stable value after 24 days leaching. The lowest leaching concentration can be get under pH 7. And the additives have negative effects. Using moisture maintenance is better than common maintenance. Comparing with cement solidifition，the fly ash is much more efficient and ecnomical．
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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A study on solidification of sludge with arsenic using fly ash

  • Received Date: 23/03/2007
  • Accepted Date: 11/12/2006
Fund Project:

Abstract: The solidification of the sludge in the sulphuric acid wastewater treatment system with fly ash and cement was studied. The leaching rate of arsenic in the sludge exceeds the standard．The best solidifying proportioning is: cement∶flyash∶sludge=1∶1∶2. The leaching conccentration can get a stable value after 24 days leaching. The lowest leaching concentration can be get under pH 7. And the additives have negative effects. Using moisture maintenance is better than common maintenance. Comparing with cement solidifition，the fly ash is much more efficient and ecnomical．

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