Volume 7 Issue 4
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CHEN Xi, GUO Limei, YU Kezhe, WU Shouxiang. Study on solidification treatment for waste drilling fluid of flocculant dehydration[J]. Journal of Environmental Engineering Technology, 2017, 7(4): 495-499. doi: 10.3969/j.issn.1674-991X.2017.04.068
Citation: CHEN Xi, GUO Limei, YU Kezhe, WU Shouxiang. Study on solidification treatment for waste drilling fluid of flocculant dehydration[J]. Journal of Environmental Engineering Technology, 2017, 7(4): 495-499. doi: 10.3969/j.issn.1674-991X.2017.04.068
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Study on solidification treatment for waste drilling fluid of flocculant dehydration

doi: 10.3969/j.issn.1674-991X.2017.04.068

  • 1. Tianjin Modern Vocational Technology College, Tianjin 300350, China

  • 2. College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China

More Information
  • Corresponding author: Limei GUO E-mail: glmei@tust.edu.cn
  • Received Date: 2016-12-30
  • Publish Date: 2017-07-20
    Abstract
  • Dehydration of waste drilling fluid from an offshore oil field was studied by adding different flocculants. Then the mud cake was mixed with cement by solidification process and made into building materials. The experimental results show that the solid-liquid separation of the waste drilling fluid can only be achieved by dilute of the fluid. The waste drilling fluid was diluted by 4 times and disposed by adding anionic flocculant A1920PAM at a dosage of 150 mg/kg, and the residual moisture content of the fluid can be reduced to as low as 35.33% after vacuum filtration. The optimal proportion of waste drilling fluid in solidified block was 25%, because the strength conditions of most building materials were satisfied and more waste drilling fluid could be solidified. After the immersion test of the solidified materials, it shows that the leaching efficiency for CODCr and heavy metals is below the national discharge standard.

     

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