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Anti seepage HDPE geomembrane for sewage tank

Anti seepage HDPE geomembrane for sewage tank

  • Categories:NEWS
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  • Time of issue:2020-08-20
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(Summary description)The anti-seepage HDPE geomembrane has the characteristics of non-corrosion in strong acid-base environment for a long time, which is especially suitable for sewage treatment projects. In this paper, we will elaborate the selection of HDPE geomembrane materials, construction steps and technical points, and the matters needing attention in construction, so as to provide reference for relevant projects

Anti seepage HDPE geomembrane for sewage tank

(Summary description)The anti-seepage HDPE geomembrane has the characteristics of non-corrosion in strong acid-base environment for a long time, which is especially suitable for sewage treatment projects. In this paper, we will elaborate the selection of HDPE geomembrane materials, construction steps and technical points, and the matters needing attention in construction, so as to provide reference for relevant projects

  • Categories:NEWS
  • Author:
  • Origin:
  • Time of issue:2020-08-20
  • Views:0
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The anti-seepage HDPE geomembrane has the characteristics of non-corrosion in strong acid-base environment for a long time, which is especially suitable for sewage treatment projects. In this paper, we will elaborate the selection of HDPE geomembrane materials, construction steps and technical points, and the matters needing attention in construction, so as to provide reference for relevant projects.       

Before construction, the relevant responsible units of the project must be required to inspect the basement of the sewage pool to ensure that the flatness and slope of the foundation surface are uniform, without obvious concave convex and sharp sundries, and the treatment of internal and external corners should be smooth transition. Only when the above requirements are met can the next construction be carried out. The next step is to lay the geomembrane. Before laying the geomembrane, the laying sequence should be determined first, and then the field site should be measured accurately, and then the actual cutting should be carried out. What should be noted here is that the parameters in the drawings can not be fully trusted, because there is bound to be some error between the design parameters and the quantity of the field measurement. The geomembranes should be numbered one by one. They should be placed in order and the construction should be carried out in sunny days Under the premise of ensuring quality, try to reduce joints and save materials as much as possible.

HDPE geomembrane shall be welded in time after laying, and the method of staggered joint overlapping is required. After the welding is completed, visual inspection shall be carried out from the appearance and weld quality, and the hot-melt welding seam shall be tested by pressing method, and there shall be no sliding welding, skip welding and missing welding; the artificial damage shall be avoided in the construction process. For reworked welds, the test shall be continued until it is qualified.

In addition to the above matters needing attention, the HDPE geomembrane for seepage control of sewage tank also needs to pay attention to in the construction season. It should not be too tight in summer, but it needs to be tightened in winter. This is because the temperature in summer is too high, and the membrane material will have the reaction of thermal expansion and cold contraction.

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