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Direct drinking water purifying process and its processing system

A technology of purification treatment and treatment system, applied in the field of purification treatment process of direct drinking water, can solve problems such as inability to meet water at the same time, achieve the effect of meeting economic requirements, improving water recovery rate, and avoiding secondary pollution

Inactive Publication Date: 2008-10-15
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome that the above-mentioned traditional water treatment methods and equipment cannot satisfy the treated water at the same time, while removing organic micro-pollution and excessive inorganic ions and retaining trace elements, it can effectively improve the recovery rate of treated water and reduce treatment costs. defects, thus providing a method that can remove toxic and harmful pollutants in tap water of urban pipe networks, especially organic micro-pollution and excessive inorganic ions, while retaining trace elements that are beneficial to the human body, and meet the requirements of the World Health Organization (WHO) The standard for direct drinking water is stipulated, and the purification treatment process of direct drinking water can significantly improve the recovery rate of treated water

Method used

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  • Direct drinking water purifying process and its processing system
  • Direct drinking water purifying process and its processing system
  • Direct drinking water purifying process and its processing system

Examples

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, make a treatment system of the purification treatment process of direct drinking water of the present invention. Design water output: 0.5m 3 / hr.

[0038] The treatment system consists of a pretreatment system, an advanced treatment system, and a circulation disinfection system. in:

[0039] Described pretreatment system comprises pre-filter unit 1, ozone oxidation unit 2, catalytic unit 4, intermediate water tank 5 and activated carbon treatment unit 6 successively according to water treatment process; Exhaust gas destruction unit 3;

[0040] The water outlet of the activated carbon treatment unit 6 of the pretreatment system communicates with the reverse osmosis unit 7 and the ultraviolet-ozone-iodine combined disinfection unit 8 respectively through a tee; The units 10 are sequentially connected to form a deep processing system;

[0041] The water outlet of the ultraviolet-ozone-iodine combined disinfection unit 8 and the reverse osmo...

Embodiment 2

[0046] According to the purification treatment process of direct drinking water provided by the present invention, the pipe network water of a water purification plant in Beijing is treated.

[0047] Water inflow 0.7m 3 / hr, first pre-filter the incoming water through the pre-filter unit 1 (German Hans filter) to intercept the particulate matter in the incoming water; the main function of this filtering process is to remove molecular impurities such as sediment, rust, and parasites in the water , and eliminate free residual chlorine in the water; then the effluent is subjected to ozone treatment in the ozone oxidation unit 2, the dosage of ozone is 1.0mg / L, and the contact time is 8min, and the ozone oxidation removes trace organic pollutants in the water body; the ozone effluent The residual dissolved ozone in the water body is removed by the catalytic unit 4 to avoid damage to the activated carbon in the subsequent treatment unit. Finally, the effluent is filtered and adsor...

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Abstract

The invention discloses a purifying technique of drinking water, which is characterized by the following: adopting ozone and active charcoal to predispose; proceeding deep disposal through the combination of reverse osmosis and electrodialysis; sterilizing circularly. The purifying system is composed of predisposal system, deep disposal system and circulating sterilizing system.

Description

technical field [0001] The invention relates to a water purification method, in particular to a purification treatment process for direct drinking water, and a treatment system thereof Background technique [0002] All European countries can provide household direct drinking water. This is because the water quality of the water source is good, and the problem of secondary pollution of the pipe network is not obvious. Therefore, no special treatment method is required for the direct drinking water treatment process. However, in my country, tap water in urban pipe networks contains trace amounts of organic matter (such as disinfection by-products and their precursors, etc.), and due to long-distance transmission and distribution through the water supply network, the content of chlorinated disinfection by-products will increase, and may The content of bio-assimilated organic carbon increases; in addition, the capacity of the secondary water tank used in high-rise buildings is ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/78C02F1/28C02F1/44C02F1/469C02F1/50C02F1/32
Inventor 郭召海杨敏曲久辉刘俊新齐嵘雷鹏举周全刘会娟张昱
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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