System for purifying and recycling fecal sewage based on physical and chemical methods and process thereof

Abstract

The invention relates to a system for purifying and recycling fecal sewage based on physical and chemical methods and a process thereof. The system comprises a sewage treatment main circulation loop, an electrochemical treatment circulation loop, a nanofiltration treatment circulation loop, an electrolytic tank (3), an ultrafiltration device (5) and a nanofiltration device (6); the electrolytic tank (3) and the ultrafiltration device (5) are positioned in an overlapped region of the electrochemical treatment circulation loop and the nanofiltration treatment circulation loop and also positioned in an overlapped region of the water treatment main circulation loop and the electrochemical treatment circulation loop; and the electrolytic tank (3), the ultrafiltration device (5) and the nanofiltration device (6) are positioned in an overlapped area of the water treatment main circulation loop and the nanofiltration treatment circulation loop. Compared with the prior art, the invention has the advantages of small required space, fast starting, stable operation, realization of water circulation and reuse, high market promotion value and the like.

Description

technical field [0001] The invention relates to the field of sanitation technology, in particular to a system and process for purifying and recycling fecal water based on physical and chemical methods. Background technique [0002] Water-flush toilets are clean, hygienic, and easy to clean. They are currently an important form of toilet, and they are also widely used in the current national toilet revolution and global toilet improvement projects. However, traditional flushing toilets usually use clean water and consume a large amount of water, 6-10L each time, which is a huge waste of scarce water resources, diluting 2% of feces with 98% of clean water, that is 2% of feces pollute 98% of clean water. Traditional flush toilets rely heavily on water resources, which limits their wide application in water-scarce western regions. Moreover, traditional water-flush toilets require basic sewer construction, and expensive pipe network construction also limits its application in v...

AI Technical Summary

Problems solved by technology

Biological treatment toilets are economical and effective, but the microorganisms that play a major role in them are sensitive to temperature and other environments, so they are not suitable for use in cold northern regions, and especially in rural areas, they are also affected by water and power cuts

In addition, toilets using biological treatment processes take a relatively long time from start-up to stabilization, are difficult to domesticate microorganisms, and are generally large in size, so they are not suitable for temporary venues such as open-air concerts

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