Refuse landfill multilayer anti-seepage structure and seepage fluid comprehensive treatment system thereof

Abstract

The invention discloses a refuse landfill multi-layer anti-seepage structure and a seepage fluid comprehensive treatment system thereof.The multi-layer anti-seepage structure comprises a foundation pit, multiple anti-seepage layers are arranged on the side wall of the foundation pit, and the multiple anti-seepage layers comprise a xanthan gum / coconut fiber composite anti-seepage layer, a waterproof material layer, an electroosmosis anti-seepage layer and a blocking layer in sequence from near to far from the side wall of the foundation pit; the xanthan gum / coconut fiber composite impermeable layer is prepared by stirring and mixing xanthan gum, coconut fibers and soil; one end of the water collecting pipe is communicated with the electroosmosis impermeable layer, and the other end is communicated with the outside; an inflatable cushion layer is laid at the bottom of the foundation pit; and the control system is connected with the electroosmosis impermeable layer and the inflatable cushion layer. The treatment system comprises a multi-layer anti-seepage structure and a percolating fluid treatment system for treating percolating fluid. By means of the three-layer anti-seepage structure, the stability and anti-seepage performance of the composite layer are effectively enhanced, the possibility that liquid in garbage permeates into a soil body is reduced, and the multi-layer anti-seepage structure is controlled through the control system.

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