Method for treating urine to obtain drinking water

Abstract

The invention provides a method for treating urine to obtain drinking water. The method comprises the following steps: S1, adding a pretreating agent into urine according to a certain proportion, thendistilling, and monitoring the conductivity of a distillate in real time; S2, sequentially filtering the distillate obtained in the S1 by using fiber active carbon and a polypropylene filter membraneto obtain a filtrate; S3, at 120-850 DEG C, oxidizing the filtrate by using a catalyst to obtain gaseous water and carbon dioxide, and condensing the gaseous water into liquid water; S4, through an ion exchange action between freely exchangeable ions in ion exchange resin and homopolar ions in water, treating the liquid water to remove ions other than H<+> and OH<-> in water so as to obtain effluent water; S5, sequentially detecting the conductivity, the pH value, the total organic carbon (TOC) and the total bacterial count of the effluent water obtained in the S4, wherein the effluent watercan be used as the drinking water after the effluent water passes the detection. By the method for treating the urine, provided by the invention, the drinking water with relatively high water qualitycan be obtained, the water production rate is higher than 90%, and the water using cost in a specific environment can be greatly saved.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for treating urine to obtain drinking water. Background technique [0002] In an environment where water resources are particularly precious, it is uneconomical and unrealistic to rely on water storage and frequent and regular replenishment. It is necessary to use water recycling and water regeneration technologies to achieve water recycling as much as possible. In the case of lack of water resources, if the treatment of urine from potential water resources can be realized and drinking water can be regained, the problem of water shortage in specific environments can be solved to a certain extent. Under normal circumstances, the amount of urine excreted per person per day is 1.5kg, and the urine contains more than 100 kinds of organic and inorganic substances, mainly including urea (about 13-20g / L), sodium chloride (about 13-20g / L) ), etc., the total amount of various pol...

AI Technical Summary

Problems solved by technology

However, in the existing urine treatment technology, there are very few ways to actually process the urine and obtain drinking water that has passed the test.

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