Device and method for automatically separating, collecting and reutilizing urine

Abstract

The invention discloses a device and a method for automatically separating, collecting and reutilizing urine and relates to an agricultural environmental engineering technology. The device consists of a urine water (urine and wash water) automatic separation and collection system, a urine reutilization system and a gray water (wash water) treatment system, and an automatic control technology, an environmental pollution control technology, a technology for recovering and reutilizing nutrient substances, such as N, P and the like, and the like are involved. According to the device and the method, gray water load can be reduced to a great degree; environment is effectively improved; domestic sewage can be reutilized; nutrient substances such as N, P and the like can be recycled; waste of resources is avoided; and a certain economic benefit is achieved. The method is easy to implement, low in cost, and high in applicability and has strong use and popularization demonstration value.

Description

technical field [0001] The invention mainly relates to the technical field of agricultural environmental engineering, and is a device and method for automatically separating and collecting urine and recycling it, which can realize automatic separation and collection of urine and urine flushing water after defecation, reduce the gray water load, and realize Resource utilization of nutrients such as N and P in urine. Background technique [0002] The contents of N, P and COD in urine account for 87%, 50% and 12% of the total domestic sewage respectively. The direct discharge of urine not only increases the subsequent gray water treatment load, but also causes the loss of nutrients such as N and P. [0003] Currently, the treatment methods for urine mainly include: [0004] 1. Urine, stool and flushing water enter urban sewage pipes together, and are treated as black water in sewage treatment plants. This method has two main disadvantages: [0005] First, the organic load a...

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Problems solved by technology

[0005] First, the organic load and pathogenic bacteria load of black water are high, which increases the difficulty and cost of sewage treatment after mixing with gray water, and also makes it difficult to recycle nutrients in black water;

[0006] Second, the above-mentioned technologies are still at the pollution control level of sewage, and have not realized the resource utilization of nutrients in domestic sewage and the recycling of effluent water

Although this method realizes the resource utilization of some nutrients and reduces environmental pollution, the disadvantage is that the urine and the urine flushing water are not separated, which will lead to low recycling efficiency of nutrients in the urine.

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