A kind of processing method of rubbish permeate

Abstract

The invention discloses a method for treating waste permeate, comprising the following steps: S1 preparing primary concentrated solution; S2 preparing secondary concentrated solution; S3 preparing deammonia water and secondary product ammonium sulfate solution; S4 preparing electrolyzed water; S5 preparing discharge water; the beneficial effects of the present invention are: the use of the DTRO membrane system and the COD membrane system in combination, while the hollow fiber membrane forms deamination water and ammonium sulfate solution, and then the deamination water is electrolyzed to achieve purification; use a quartz sand filter for washing and Backwash to obtain relatively pure waste permeate; use alkaline environment to make ammonia nitrogen free, and then realize multi-layer recovery; use automatic scraper filtration to reduce the factors affecting ozone catalysis; at the same time, ozone catalysis is used to make organic matter in electrolyzed water The content is reduced, thereby reducing the SS value of the edema suspension.

Description

technical field [0001] The invention relates to the field of garbage environmental protection treatment, in particular to a treatment method for garbage permeate. Background technique [0002] In recent years, with the acceleration of my country's urbanization process and the gradual improvement of people's living standards, the output of urban domestic waste has continued to increase; the main treatment methods for domestic waste include recycling, composting, incineration, and landfill. High economy, this method is often used in developing countries and underdeveloped areas to deal with domestic waste; however, due to the degradation of the waste dump during the landfill process of waste, factors such as atmospheric precipitation, groundwater influx and surface runoff are inevitable A large amount of landfill leachate will be produced. Landfill leachate contains a large amount of organic matter, salt and heavy metals, etc. It is recognized as a kind of refractory organic wa...

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Problems solved by technology

Although sawdust material is used to fill the filter layer, and at the same time, the filter residue is used as raw material to prepare cake fertilizer, so as to realize the complete treatment of garbage permeate; however, it is not considered that when the SS value of the suspended solids in the garbage permeate is too high, the suspended solids are easy to clog The gaps formed by the sawdust will lead to the blockage of the filter layer and damage the device; at the same time, the high SS value will easily lead to excessive organic content in the discharged water; and in the above-mentioned invention, the removal of heavy metals and the recovery of other impurity ions are relatively narrow, and only ammonia nitrogen is recovered. Elements, can not be recovered in multiple levels Recoverable metal ions and non-metal ions in garbage permeate

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