Membrane process drinking water treatment system and method

A technology of drinking water treatment and membrane method, applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult to meet standards, and achieve the effect of reducing energy consumption in operation

CN108117191AInactive Publication Date: 2018-06-05桑德生态科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-06-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a membrane process drinking water treatment system and method. The system comprises a primary settling tank, a self-cleaning filter device, an immersed ultrafiltration device and an ultralow pressure reverse osmosis device connected successively, wherein the primary settling tank is provided with a water inlet for introducing incoming water, and the ultralow pressure reverse osmosis device is provided with a water outlet for discharging produced water. The treatment system forms two-stage membrane treatment, can realize a novel membrane treatment process on the incomingwater by the two-stage membranes, and ensures that the effluent quality reaches the water quality standard of domestic drinking water stably. Ultrafiltration and reverse osmosis are in low pressure operating modes. Compared with a conventional membrane treatment process, the system has the advantages that the operating energy consumption is reduced greatly.
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Description

technical field

[0001] The invention relates to the field of drinking water treatment, in particular to a membrane drinking water treatment system and method. Background technique

[0002] According to the data released by the World Bank in 2016, China's total water resources are 2,818 billion cubic meters, which is second only to Brazil, Russia, Canada, and the United States, and ranks fifth among 214 countries and regions; but the per capita water The resource is only 2062 cubic meters, which is one-third of the world average and ranks 106th in the world. The scarcity of water resources per capita is the basic national condition of our country.

[0003] According to statistics, the current national surface water bodies account for 31%, 30%, 21%, 6%, 9% and 3% of the water quality of Class I, Class II, Class III, Class IV, Class V and inferior to Class V, respectively. Nearly 40% of water bodies have water quality of Grade IV or below, and water pollution is a serious pro...

Examples

Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the specific content of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The content not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.

[0021] Such as figure 1 As shown, the embodiment of the present invention provides a membrane drinking water treatment system, comprising:

[0022] The primary sedimentation tank, self-cleaning filter device, submerged ultrafiltration device and ultra-low pressure reverse osmosis device connected in sequence; wherein, the primary sed...