A kind of landfill leachate membrane concentrate treatment process

A technology of landfill leachate and membrane concentration, which is used in the treatment of polluted groundwater/leachate, osmotic/dialysis water/sewage treatment, water/sewage treatment, etc.
CN111170581BActive Publication Date: 2021-09-10湖南诚通天岳环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖南诚通天岳环保科技有限公司
Publication Date
2021-09-10

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Abstract

The invention belongs to the technical field of sewage treatment in the environmental protection industry, and specifically relates to a process for treating landfill leachate membrane concentrate, comprising the following steps: S1 adding an adsorption material, S2 adding an organic solvent to recover the adsorption material, S3 evaporating and recovering, and S4 treating refractory organic matter. In the present invention, the concentrated solution of the landfill leachate membrane is adsorbed by the adsorption resin and then discharged up to the standard through the biochemical treatment process; the saturated adsorption material is resolved and desorbed by an organic solvent to ensure the regeneration of the adsorption material; the refractory organic matter and organic solvent after analysis Separation through evaporation process, recycling of organic solvents, and refractory organics are treated as humic acid-based products or back-spray incinerators to achieve resource utilization. The invention solves the difficult problem of treating the leachate membrane concentrate with complex composition, and fundamentally realizes the full treatment of the concentrate and the maximization of resource utilization.
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Description

technical field

[0001] The invention belongs to the technical field of sewage treatment in the environmental protection industry, and in particular relates to a process for treating landfill leachate membrane concentrate. Background technique

[0002] The leachate produced during the landfill and incineration of garbage is a kind of high-concentration and difficult-to-treat organic wastewater with large changes in water quality and quantity, high ammonia nitrogen content, and complex components. With the improvement of national environmental protection requirements, leachate treatment effluent requirements meet the requirements of the "Standards for Pollution Control of Domestic Waste Landfill Sites" (GB16889-2008). The traditional advanced treatment adopts the combined technology of nanofiltration and reverse osmosis. However, after the advanced treatment of landfill leachate by nanofiltration and reverse osmosis system, a large amount of membrane concentrate will be produc...

Claims

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