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Photocatalytic urea treatment and recycle device

A technology of photocatalysis and urine, applied in the direction of special compound water treatment, light water/sewage treatment, special treatment targets, etc., can solve the problems of hazards, water waste, entering the soil environment, etc.

Pending Publication Date: 2019-07-16
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • Photocatalytic urea treatment and recycle device
  • Photocatalytic urea treatment and recycle device

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08
CPCC02F9/00C02F1/44C02F1/283C02F1/32C02F2303/04C02F2305/10C02F2301/08
Inventor 姚宏孙绍斌田盛
Owner BEIJING JIAOTONG UNIV
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