Landfill leachate treatment system
A technology for landfill leachate and treatment system, applied in the field of landfill leachate treatment system, can solve the problems of difficult treatment, poor biodegradability, increased ammonia nitrogen concentration, etc., and achieve the effect of less secondary pollution
Pending Publication Date: 2018-10-19
江苏晔辰环保科技有限公司
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Problems solved by technology
Generally, at the initial stage of domestic waste, the leachate is black, with good biodegradability and easy to handle, but as time goes on, the leachate gradually turns brown, with poor biodegradability, and the concentration of ammonia nitrogen increases significantly, making it more and more difficult to handle
Method used
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Embodiment 1
[0039] see figure 1 , a kind of landfill leachate treatment system that the present invention relates to, it comprises grid well 1, oil separation grit chamber 2, adjustment pond 3, float valve 4, primary sedimentation pond 5, baffle anaerobic pond 6, anoxic pond 7. Sedimentation tank 8, biochemical tank 9, membrane reaction tank 10, equipment room 11, dosing device 12 and pH adjustment device 13.
[0040] The landfill leachate in the extrusion station enters the pretreatment pool through the lift pump. The pretreatment pool includes a grid well 1, an oil separation grit chamber 2 and a regulating tank 3 arranged in sequence. The grid well 1 is equipped with a grid Grille, the regulating pool 3 is provided with a high liquid level and a low liquid level, and a float valve 4 is provided at the high liquid level and the low liquid level. The primary sedimentation tank 5 carries out coagulation and sedimentation.
[0041] Part of COD in landfill leachate exists in the form of s...
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The invention relates to a landfill leachate treatment system which comprises a pretreatment pool, a baffling anaerobic pool, a membrane reaction system, an equipment room, a medicine addition deviceand a pH regulation device; landfill leachate of an extrusion station enters the pretreatment pool through a lift pump; the pretreatment pool comprises a grating well, an oil separation and sand settling pool and a regulation pool which are sequentially arranged; wastewater in the regulation pool flows into a primary settling pool through a sewage pipeline; the primary settling pool is connected with the baffling anaerobic pool; the baffling anaerobic pool is connected with the membrane reaction system through the sewage pipeline; and the membrane reaction system comprises an anoxic pool, a settling pool, a biochemical pool and a membrane reaction pool which are sequentially arranged. The landfill leachate treatment system is stable and reliable in treatment effect, high in automation degree and less in secondary pollution.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a landfill leachate treatment system. Background technique [0002] Landfill leachate mainly comes from three parts, namely waste water generated during waste compression and water generated by anaerobic biological reactions during the compression process; rainwater collection in the compression area and shallow surface seepage water. Landfill leachate contains a variety of organic pollutants and high COD concentrations ranging from thousands to tens of thousands of mg / liter; especially carboxybenzene, which is difficult to be directly biodegraded. The content of heterocyclic and polyphenyl macromolecular organic compounds is high, as high as several thousand mg / liter. [0003] With the prolongation of domestic garbage time, there are great differences in leachate water quality. Generally, in the initial stage of domestic waste, the leachate is black, with good biodegr...
Claims
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IPC IPC(8): C02F9/14C02F103/06
CPCC02F9/00C02F1/5281C02F1/40C02F2103/06C02F2001/007C02F3/286C02F3/1268C02F3/00C02F1/66C02F2301/08
Inventor 范宗明李明
Owner 江苏晔辰环保科技有限公司