405results about How to "Reduce sewage" patented technology

The invention discloses a valley-type refuse landfill series multi-partition rain and sewage shunting device and a valley-type refuse landfill series multi-partition rain and sewage shunting method. The device comprises landfill areas spaced by area partition dams, more than four landfill areas are partitioned from upstream to downstream, the landfill areas are connected in series by the same percolate guide and drainage blind ditch, a high-density polyethylene (HDPE) percolate guide duct with perforations is arranged in the percolate guide and drainage blind ditch, the refuse landfills of the landfill areas are sequentially from upstream to downstream, a percolate collecting pit is arranged at the sewage gathering bottom of the landfill area which is being filled, and a sewage submersible pump is arranged in the percolate collecting pit; and the percolate is delivered to a percolate sewage adjusting tank through the sewage submersible pump and a hose. By adopting the device and the method, the problem of rain and sewage shunting of a newly built valley-type landfill can be well solved; and the generating quantity of the sewage of the landfill is greatly reduced, so that the scale of percolate treatment equipment and facilities is reduced, a large amount of percolate and sewage treatment cost is reduced, and energy saving and emission reduction are realized.