Short-flow water purification process and device using immersed ultra-filtration membrane as core

Abstract

The invention discloses a short-flow water purification process and a short-flow water purification device using an immersed ultra-filtration membrane as a core. The process comprises the following steps of: (mechanically) mixing raw water, (mechanically) flocculating the raw water, delivering the flocculated water to an immersed ultra-filtration membrane assembly, and delivering the treated water to ultraviolet equipment to produce water. The raw water is fed and discharged by using gravity in a mixing tank and a flocculating tank, the outlet water on the upper part of the flocculating tank enters an ultra-filtration membrane tank, and the ultra-filtration membrane filters the water by using negative pressure formed by pumping of a water pump. A water outlet pipe of the water pump is connected with the water inlet of the ultraviolet equipment, and a water outlet pipe of the ultraviolet equipment is connected with a water production tank. By the combined process, the problem of water pollution of a water source in recent years can be effectively solved, further reduction of the organic substances of ultra-filtration effluent is ensured by ultraviolet oxidative decomposition, and new standards of national drinking water are met. Meanwhile, the combined process can avoid the problem of disinfection byproducts caused by traditional chlorine disinfection. The process is easily popularized on a national scale, is particularly suitable for new construction and reformation of water plants in water source polluted regions, and is suitable for water treatment of source water polluted rural regions and small water utilization stations.

Description

technical field [0001] The combination process is suitable for the water purification treatment industry, especially the renovation and new construction of water plants in areas where water sources are polluted; the combination equipment is used in drinking water treatment fields or small-scale water treatment stations in rural areas where water sources are polluted. Background technique [0002] At present, domestic ultrafiltration membrane treatment technology has gradually been applied and developed in the field of water supply treatment. Especially in the past two years, the short-process water purification treatment process with immersion ultrafiltration membrane as the core has opened up a new water treatment mode, and achieved good operating results in actual engineering, fully proving the feasibility and success of the process sex. The process has the following characteristics: 1. The membrane material adopts domestic hollow fiber ultrafiltration membrane, and the p...

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Problems solved by technology

[0005] The combination of short-process water purification treatment process with immersion ultrafiltration membrane and ultraviolet treatment process can solve the problem of increasing water pollution, more effectively ensure the safety of drinking water supply, and reduce the organic content of effluent. Effective disinfection does not produce the problem of disinfection by-products caused by traditional disinfection, and meets the new national drinking water standards. This process will better play the advantages of the short-process water purification process with immersion ultrafiltration membrane as the core. , to promote nationwide

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