2010 Volume 4 Issue 7
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Run Lin, Yuan Yongqin, Zhang Juntao, Sun Kejun, Chang Ying, Liu Cong, Wang Yongqing. Study on composting of waterworks sludge[J]. Chinese Journal of Environmental Engineering, 2010, 4(7): 1650-1654.
Citation: Run Lin, Yuan Yongqin, Zhang Juntao, Sun Kejun, Chang Ying, Liu Cong, Wang Yongqing. Study on composting of waterworks sludge[J]. Chinese Journal of Environmental Engineering, 2010, 4(7): 1650-1654.
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Study on composting of waterworks sludge

  • 1.

    Guangzhou Institute of Landscape Gardening, Guangzhou 510405, China

  • 2.

    Guangzhou Water Supply Company, Guangzhou 510600, China

  • Received Date: 10/11/2009
    Accepted Date: 09/10/2009
    Fund Project:
  • The pretreatment of anti-caking and dewatering and the hightemperature aerobic composting of waterworks sludge and the effects of the compost application on gardening were studied. The results of physical composition and scanning electron microscope indicated that, the conditioner QS significantly improved the caking property and dewatering performance of waterworks sludge. The results of composting showed that, composting of the pretreated waterworks sludge and litter (the volume ration was 3∶7) with added urea to regulate C/N could be maturity after 27 days. Adding EM agent could speed the maturity of the compost and shorten the composting time to 19 days. The result of pot experiment of eucalyptus showed that, the compost of waterworks sludge could increase the water holding capacity of the substrate and promote the growth of eucalyptus. Adding EM agent to the compost is better for the growth of eucalyptus.
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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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Study on composting of waterworks sludge

  • Received Date: 10/11/2009
  • Accepted Date: 09/10/2009
Fund Project:

Abstract: The pretreatment of anti-caking and dewatering and the hightemperature aerobic composting of waterworks sludge and the effects of the compost application on gardening were studied. The results of physical composition and scanning electron microscope indicated that, the conditioner QS significantly improved the caking property and dewatering performance of waterworks sludge. The results of composting showed that, composting of the pretreated waterworks sludge and litter (the volume ration was 3∶7) with added urea to regulate C/N could be maturity after 27 days. Adding EM agent could speed the maturity of the compost and shorten the composting time to 19 days. The result of pot experiment of eucalyptus showed that, the compost of waterworks sludge could increase the water holding capacity of the substrate and promote the growth of eucalyptus. Adding EM agent to the compost is better for the growth of eucalyptus.

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