Water-saving ultra/microfiltration purification device for water

Abstract

The invention discloses a water-saving ultra / microfiltration purification device for water. The water-saving ultra / microfiltration purification device for water comprises a water-feeding pump 1, ultra / microfiltration membrane purification units 2, an ultra / microfiltration membrane concentrated water and backwashing water recovery tank 3, a clean water reservoir 7, an aeration blower fan 8, a water suction pump 9 and associated pipe valves. The water-saving ultra / microfiltration purification device for water is characterized in that activated carbon particles 4, an aeration device 5 and flat membrane members 6 are arranged in the ultra / microfiltration membrane concentrated water and backwashing water recovery tank 3; the aeration device 5 is located at the bottom of the ultra / microfiltration membrane concentrated water and backwashing water recovery tank 3; and the flat membrane members 6 are located in the ultra / microfiltration membrane concentrated water and backwashing water recovery tank and on the aeration device 5. The water-saving ultra / microfiltration purification device for water can realized purification of water and recovery of concentrated water and backwashing water simultaneously. Product water obtained by the water-saving ultra / microfiltration purification device for water has quality reaching the national drinking water quality standard. Through the water-saving ultra / microfiltration purification device for water, membrane backwashing water and concentrated water can be recycled so that a water recovery rate of a membrane system is greatly improved; a waste water discharge amount is reduced; and a large amount of a water resource is saved. The water-saving ultra / microfiltration purification device for water can be widely utilized for purification of drinking water.

Description

Technical field [0001] The invention provides an ultra / microfiltration water purification device, in particular to a water-saving ultra / microfiltration water purification device applied in a drinking water purification process. Background technique [0002] In recent years, with the progress of my country's industrialization, the problem of environmental pollution has become increasingly severe. The pollution of water resources in modern society is a serious threat to human life. The United Nations Health Organization has issued a warning to the world: "In the 21st century, the water crisis will be the first fact that mankind must face." "There are at least 50,000 people in the world every day. Died from various diseases caused by drinking contaminated water." Scientists remind us: If we no longer pay attention to the preservation of water resources, it will appear-"Water is everywhere on the earth, but you can't drink a drop!" [0003] With the continuous innovation of technolog...

AI Technical Summary

Problems solved by technology

However, using conventional methods to recycle membrane backwash water has the following disadvantages: first, it needs to add coagulant, which loses the advantages of membrane technology in physical filtration; second, the recovery efficiency is low; third, it has certain recovery risks, especially Iron, manganese and other conventional indicators and microbial indicators (giardia and cryptosporidium); fourth, even if submerged membrane filtration is used, the membrane used is very easy to block and pollute, and its lifespan is very low; fifth, the investment cost is high, It is necessary to increase the adjustment tank, coagulation sedimentation tank or recovery tank. Sixth, the operating cost and energy consumption are high

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