Novel drinking water advanced treatment and purification device and method

A technology of advanced treatment and purification device, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. Problems such as rapid volume decay
CN110790344APending Publication Date: 2020-02-14SHANGHAI MUNICIPAL WATER RESOURCES DEV & UTILIZATION NAT ENG CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MUNICIPAL WATER RESOURCES DEV & UTILIZATION NAT ENG CENT
Publication Date
2020-02-14

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Abstract

The invention discloses a novel drinking water advanced treatment and purification device and a method. The device comprises a flushing system, a negatively charged ultrafiltration membrane assembly (1), a dosing system and a water production system, wherein the negatively charged ultrafiltration membrane assembly (1) comprises a water inlet (11), a produced water port (12) and a concentrated water port (13), the water inlet (11) is connected to a water inlet tank, the concentrated water port (13) is connected to the flushing system and the dosing system, and the produced water port (12) is connected to the water production system. The device and method provided by the invention utilizes negatively charged groups of a charged ultrafiltration membrane for advanced treatment of harmful anions and part of small molecular organic matters in inflow water, and makes use of positive diffusion chemical cleaning for efficient restoration of the membrane running flux, thus reaching the purpose of advanced treatment of micro-organic polluted drinking water.
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Description

technical field

[0001] The invention relates to the technical field of advanced treatment of drinking water, in particular to a novel device and method for advanced treatment and purification of drinking water. Background technique

[0002] At present, ultrafiltration (UF) membranes are widely used in the drinking water advanced treatment and purification systems of waterworks. Ultrafiltration (UF) membranes have many advantages in the advanced treatment of waterworks, such as high effluent quality, stable water quality, small equipment footprint, and comprehensive Automatic operation, no need to add chemical reagents and other advantages. However, the economics of UF membrane system application in waterworks will be affected by many factors: power system requirements, electricity costs, labor costs, material costs, membrane cleaning costs, scale inhibitor costs, membrane life cycle and membrane replacement costs, etc. At present, the main obstacle to the application of UF ...

Claims

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