Garbage leachate treatment process
A technology of landfill leachate and treatment process, which is applied in the field of advanced treatment technology of landfill leachate, can solve problems such as inability to biochemical treatment, and achieve the effects of low operating cost, low investment and high treatment efficiency
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[0019] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.
[0020] A treatment process for landfill leachate, the following process steps are taken:
[0021] (1) The landfill leachate is filtered through a fine grid, the solids in it are transported out for backfilling, and the liquid part enters the coagulation sedimentation tank;
[0022] (2), add polyaluminum chloride and calcium hydroxide in the coagulation sedimentation tank, and separate precipitation under the effect of mixer, the supernatant of gained enters the regulating tank;
[0023] (3), the supernatant of step (2) gained adjusts pH to neutrality through regulating tank;
[0024] (4), the neutral supernatant obtained in step (3) is pumped into the upward flow anaerobic sludge bed by the anaerobic circulation pump for treatment, wherein the biogas recovery is used to increase the temperature of the waste water, and af...
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