Photocatalytic urea treatment and recycle device

Abstract

The invention provides a photocatalytic urea treatment and recycle device. The treatment device comprises a water inlet system, a flexible ceramic membrane filtering system, an activated carbon adsorption system and an ultraviolet sterilization system; the water inlet system comprises a water inlet pump and a water inlet pipeline; the flexible ceramic membrane filtering system is composed of two layers of flexible ceramic membrane assemblies of outer-layer ceramic membrane 1 and inner-layer ceramic membrane 3; the activated carbon adsorption system is located between the outer-layer ceramic membrane 1 and the inner-layer ceramic membrane 3, and is composed of activated carbon and plant ash 2; and the ultraviolet sterilization system comprises an ultraviolet lamp 5. By means of the photocatalytic urea treatment and recycle device, colloid and suspended solids in urea can be filtered out, the chromaticity and the turbidity of the urea are removed, bacteria and viruses are killed, nitrogen, phosphorus and potassium in the urea are separated, recycled and reused as fertilizer, and the filtered urea is reused for washing hands, flushing bathrooms and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a photocatalytic urine treatment and recycling device. Background technique [0002] With the development of the economy and the increase of the population, the human demand for water resources continues to increase, coupled with the unreasonable exploitation and utilization of water resources, many countries and regions have experienced water shortages to varying degrees. Water shortage has become a serious social problem. To solve the problem of water shortage, the most promising solution at present is to develop and utilize some unavailable water. Urine is a pollutant excreted by the human body, which requires a large amount of water to flush, resulting in a huge waste of water. At the same time, urine contains urea, and urea is a high-concentration nitrogen fertilizer. People often directly recycle urine for fertilization of crops, especially in some rural areas, b...

AI Technical Summary

Problems solved by technology

Urine is a pollutant excreted by the human body, which requires a large amount of water to flush, resulting in a huge waste of water

At the same time, urine contains urea, and urea is a high-concentration nitrogen fertilizer. People often directly recycle urine for fertilization of crops, especially in some rural areas, but the urine carries certain bacteria and directly fertilizes crops. , the bacteria in the urine enter the soil environment and cause harm

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