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Home > Archive>Volume 48, Issue 8, 2021 >110-117. DOI:10.12143/j.ztgc.2021.08.017
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Experiment on separation of mud and water from construction waste mud in the Wuhan area
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1.Hubei Institute of Urban Geological Engineering， Wuhan Hubei 430050, China;2.Wuhan Geological Survey Foundation Engineering Co., Ltd., Wuhan Hubei 430050, China;3.Hubei Key Laboratory of Industrial Fume and Dust Pollution Control, Jianghan University，Wuhan Hubei 430056, China

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TU473

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    Abstract:

    The main chemical components of construction engineering waste mud produced by different formations and different processes in the Wuhan area were analyzed by spectrograph， and the separation effect of waste mud was evaluated by orthogonal tests of filtration， vacuum filtration， centrifugation and different flocculants with the turbidity and clear liquid rate as the main evaluation indexes. The results showed that the waste mud was mainly composed of organic substance； the filtrate obtained by filtration had lower turbidity but less clear liquid rate； more supernatant could be obtained by vacuum filtration； most of the waste mud except for ultra-fine particles could be treated by centrifugation； the orthogonal test showed that better effect was obtained with cationic flocculant （PAM） treating waste mud.

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History
  • Received:November 09,2020
  • Revised:July 23,2021
  • Adopted:May 12,2021
  • Online: August 13,2021
  • Published: August 10,2021
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