Integrated water purifying device adopting ultrafiltration as core and control method of integrated water purifying device

Abstract

The invention relates to the technical field of water treatment, in particular to an integrated water purifying device which is applicable to urban water supply and adopts ultrafiltration as a core as well as a control method of the integrated water purifying device. The device comprises a flow regulating valve, a flocculating and settling pool, a water pump, a multi-medium filter, an ultraviolet sterilizer, an ultrafiltration membrane component, a flow meter and a control system. Raw water passes through the flow regulating valve, enters the flocculating and settling pool for a flocculation reaction and settling, is pressurized by the water pump and then enters the multi-medium filter; filtered outflow water passes through the ultraviolet sterilizer for sterilization, and enters the ultrafiltration membrane component; the outflow water after ultrafiltration and purification is metered by the flowing meter and sterilized and then enters a water production tank, and outflow water from the water production tank can be adopted as high-quality drinking water. The device and the control method of the device can be used for effectively purifying different types of slight-polluted source water, therefore, high-quality drinking water is obtained, and the membrane pollution is alleviated.

Description

technical field [0001] The invention relates to the technical field of water supply treatment, in particular to an integrated water purification device with ultrafiltration as the core and a control method thereof suitable for urban water supply. Background technique [0002] Ultrafiltration belongs to the third-generation drinking water treatment process, which can solve drinking water safety problems such as "two insects", algal blooms, and sudden changes in the stability of microorganisms in water bodies that cannot be solved by the first and second-generation processes. Turbidity and pathogenic microorganisms, effectively intercept colloids, macromolecular compounds, algae and other impurities, and retain the original trace elements and minerals in water. At present, ultrafiltration technology is more and more widely used in solving drinking water safety problems. [0003] However, as a purely physical filtration method, ultrafiltration is limited to the size of its memb...

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Problems solved by technology

[0003] However, as a purely physical filtration method, ultrafiltration is limited to the size of its membrane pore size, and its ability to remove medium and small molecular weight organic matter, ammonia nitrogen, dissolved solids, etc. is relatively low. Therefore, corresponding ultrafiltration should be developed in a targeted manner. Pre-filtration and post-treatment measures; In addition, the problem of ultrafiltration membrane pollution restricts the popularization of ultrafiltration technology to a large extent. Therefore, the promotion and application of ultrafiltration membranes in urban water treatment processes, membrane pollution control is Issues that need to be addressed

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