Kitchen wastewater and landfill leachate co-treatment system and method

Abstract

The invention discloses a kitchen wastewater and landfill leachate co-treatment system and method, wherein the system comprises a coarse filter tank, an oil separation tank, an oil stain treatment tank, a mixed pressure filter tank, a coagulative precipitation tank, a neutralization chamber and a decomposition chamber; the coarse filter tank performs solid-liquid separation on kitchen wastewater, and the oil separation tank is used for oil-water separation; after oil-water separation, acid-base neutralization, photolysis catalysis treatment and bacterial decomposition are performed through the oil stain treatment tank, the mixed pressure filter is used for mixing sewage filtered by the oil stain treatment tank and sewage filtered by the garbage tank for common pressure filtration treatment, the coagulative precipitation tank is used for coagulation treatment, and acid-base neutralization treatment is performed in the neutralization chamber; and the decomposition chamber is used for purifying the ozone and negative ion generator and decomposing bacteria. The kitchen wastewater is deoiled and then mixed with the sewage in the garbage pool, so that the rotting and smell changing speed of garbage in the garbage pool is reduced, the treatment efficiency is improved, the decomposition speed of the kitchen wastewater and the sewage in the garbage pool after mixing is increased through independent treatment of grease, and the efficiency is improved.

Description

technical field [0001] The invention relates to the field of environmental protection technology, in particular to a system and method for the coordinated treatment of kitchen waste water and landfill leachate. Background technique [0002] The main sources of food waste are hotels, office buildings, residential areas, schools and other canteens or residential places. The raw water of food wastewater produced contains a lot of oil and suspended solids. If all these substances enter the follow-up units such as biochemical reactions, the sludge will float. , or even lead to the death of microorganisms, resulting in unqualified effluent quality, so separating animal and vegetable oils and part of suspended organic matter in the pretreatment unit can reduce the load of subsequent units, and the garbage pool contains a large amount of sewage to accelerate the corruption of garbage. Affecting the environment, separating and treating the garbage water in the garbage pool is an effe...

AI Technical Summary

Problems solved by technology

[0002] The main sources of food waste are hotels, office buildings, residential areas, schools and other canteens or residential places. The raw water of food wastewater produced contains a lot of oil and suspended solids. If all these substances enter the follow-up units such as biochemical reactions, the sludge will float. , or even lead to the death of microorganisms, resulting in unqualified effluent quality, so separating animal and vegetable oils and part of suspended organic matter in the pretreatment unit can reduce the load of subsequent units, and the garbage pool contains a large amount of sewage to accelerate the corruption of garbage. Affect the environment. Separating the garbage water in the garbage pool is an effective measure to alleviate this phenomenon. At present, there is a lack of a method for co-processing the kitchen wastewater and the garbage wastewater in the garbage pool.

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