Sewage in-situ treatment and recycling method for mobile toilet

Abstract

The invention discloses a sewage in-situ treatment and recycling method for a mobile toilet. The method adopts a sewage in-situ treatment and recycling system for treatment, and comprises the following steps: sequentially feeding fecal sewage into an adjusting tank along a pipeline, uniformly mixing, further crushing by a water pump, feeding into a volute machine, concentrating and dehydrating solids in the sewage, feeding produced water into an anoxic tank, and carrying out denitrification reaction to remove total nitrogen in target sewage and degrade soluble organic matters; the produced water subjected to denitrification reaction treatment enters an aerobic tank for nitration reaction and oxidation reaction of organic carbon, ammonia nitrogen and dissolved organic matters in the target sewage are degraded, and then separation of activated sludge and wastewater is realized through tubular ultrafiltration; the ultrafiltration produced water is subjected to nanofiltration to remove a small amount of dissolved organic matters in the ultrafiltration effluent, nanofiltration produced water meeting the water quality standard of toilet flushing water is obtained, and nanofiltration concentrated water meets the water inlet requirement of an urban sewer pipe network and is discharged into the urban sewer pipe network. According to the method, the standard discharge of the discharged water can be realized, and the treated produced water is reused for flushing the toilet.

Description

technical field [0001] The invention relates to the technical field of sewage treatment in mobile toilets, in particular to a method for in-situ treatment and reuse of sewage in mobile toilets. Background technique [0002] Mobile toilets are mobile toilets. Compared with traditional toilets, mobile toilets have very obvious advantages, such as removable, combinable, and convenient transportation. Mobile toilets are suitable for stations, docks, scenic spots, construction sites, squares and densely populated public places. However, the water supply and drainage problems of mobile toilets have always been a technical bottleneck restricting its development. [0003] The current mobile toilets generally have the following problems: first, the water supply is inconvenient, such as the distance between the mobile toilet and the water supply source, and the water supply is inconvenient; second, the drainage is inconvenient, such as there is no direct drainage of feces and sewage ...

AI Technical Summary

Problems solved by technology

However, the water supply and drainage problems of mobile toilets have always been a technical bottleneck restricting its development.

[0003] The current mobile toilets generally have the following problems: first, the water supply is inconvenient, such as the distance between the mobile toilet and the water supply source, and the water supply is inconvenient; second, the drainage is inconvenient, such as there is no direct drainage of feces and sewage near the mobile toilet Discharged municipal sewage pipe network; third, the depth of drainage treatment is insufficient, and the quality of drainage water cannot reach the quality of water used for flushing toilets

[0004] Due to the above problems, the use efficiency and development progress of mobile toilets are limited

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