leachate removal-gravity or pumping
leachate removal-gravity or pumping
(OP)
We are expanding our landfill, which currently has a gravity leachate removal system. We've experienced some problems with gravity removal and are investigating this. We may opt for pumping, either downslope submersible pumps or stationary with suction hose in the future cells. Does anyone have experience in this area that may help us decide which to choose? thanks, Laura





RE: leachate removal-gravity or pumping
As far as I know, gravity is free, never is turned off and operates 24 hours per day so is always the preferred method for conveying fluids. Pumping costs money, can fail mechanically or electrically. etc. etc.
Good luck
RE: leachate removal-gravity or pumping
RE: leachate removal-gravity or pumping
Just my thoughts.
RE: leachate removal-gravity or pumping
RE: leachate removal-gravity or pumping
Regarding pumping systems, I have used downslope submersible pumps. pumps are removable. Works well with few problems. One big advantage, I've noticed that the most likely location for leaks in the liner system is at the penetrations. These systems eliminate penetrations through the liner system.
One wild thought, if you are noticing that leachate builds up in the landfill cell without good collection in the leachate collection system, you may be experiencing biological plugging in the sand/gravel leachate collection system above the primary system liner. If that is the source of the problem,