A treatment system for garbage anaerobic, aerobic composting, and wastewater purification

Abstract

The invention discloses a garbage anaerobic, aerobic composting and waste water purification treatment system, which comprises a feeding tank for containing garbage, an extruder, an anaerobic fermentation tower, a biogas slurry concentration evaporator, a plurality of aerobic A compost tower and a biological deodorization tower, the extruder is used to extrude garbage, the anaerobic fermentation tower is connected to the extruder through a first pipeline to receive the slurry discharged from the extruder, the The biogas slurry in the middle of the anaerobic fermentation tower is transported to the biogas slurry concentration evaporator through the second pipeline, and the evaporated liquid discharged from the biogas slurry concentration evaporator is transported to the aerobic composting tower through the third pipeline. The non-condensable gas discharged from the liquid concentration evaporator and the aerobic compost waste gas discharged from the aerobic composting tower are transported to the biological deodorization tower through the waste gas main pipe. The treatment system provided by the invention is used for treating waste with high water content, can realize harmless waste treatment, resource utilization and reduction, and has low treatment cost.

Description

Technical field [0001] The present invention relates to the field of wastewater treatment, and Background technique [0002] Traditional kitchen waste treatment is mainly incinerated, landfills and composting, making feed, etc. [0003] Due to the complex ingredients of the kitchen, high water content, resulting in incineration, high processing cost, unstable operation, and easy to produce secondary pollution. [0004] The landfill is required to enter the gas-watery content of the waterfall, and the aqueous food content is about 85%, so the kitchen garbage is directly filled with almost. [0005] Direct food waste directly as feeds such as pigs, cows, and there are safety hazards such as mad cow disease. [0006] Direct to kitchen waste, oxygen compost, easy to breed flies, mosquitoes, environmental sanitation conditions; high-organic content, maturity is not thorough, and it is easy to burn root seedling when organic fertilizer is administered. And the aphilurn content of the k...

AI Technical Summary

Problems solved by technology

[0005] There are potential safety hazards such as mad cow disease when food waste is directly used as feed for pigs and cattle

[0006] Direct anaerobic and aerobic composting of kitchen waste is easy to breed flies and mosquitoes, and the environmental sanitation conditions are poor; the content of organic matter is high, and the ripening is not complete, and it is easy to burn roots and seedlings when applying organic fertilizers

Moreover, the moisture content of food waste is high. If the moisture content is degraded by adding straw and wood chips, etc., it does not meet the principle of waste reduction.

If the wastewater is directly biochemically and advancedly treated, due to the high concentration of COD, ammonia nitrogen, total phosphorus, high salt content and high oil content in the wastewater, it is extremely difficult and costly to meet the discharge standards.

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