Seawater desalinizing technology deeply treated by reverse osmosis membrane after mixing wastewater with seawater

A reverse osmosis membrane, advanced treatment technology, applied in seawater treatment, osmosis/dialysis water/sewage treatment, general water supply saving, etc., can solve the problems of low investment cost, low operation cost, small land occupation, etc. The effect of reducing energy consumption and reducing concentration
CN102701326AInactive Publication Date: 2012-10-03OCEAN UNIV OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
OCEAN UNIV OF CHINA
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a seawater desalinizing technology deeply treated by a reverse osmosis membrane after mixing wastewater with seawater. The technology comprises the following steps of: mixing the wastewater which is discharged in accordance with standard with the seawater according to a certain proportion, and pretreating or mixing after the wastewater and the seawater are respectively pretreated, charging into a reverse osmosis membrane raw water box, flowing in a branching way through a booster pump and a cartridge filter, wherein one part of water enters into the reverse osmosis membrane through a high-pressure pump, and the other part of water enters into the reverse osmosis membrane through an energy recovering device which recovers the energy of high-pressure concentrated water and the booster pump, and filtering by the reverse osmosis membrane, so that the produced water enters into a reverse osmosis through production water box, to achieve the reuse standard, and can be taken as softened water or water for a boiler. The technology integrates the conventional reverse osmosis seawater desalinizing technology with the wastewater deep-treatment technology, so that the seawater temperature can be properly improved, the seawater salinity can be reduced, the recovery rate of produced water can be increased, the energy consumption of the high pressure pump can be reduced, the seawater desalinizing cost can be reduced, the wastewater resource can be recycled, and the difficulty of the shortage of water resources can be effectively remitted.
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Description

Technical field:

[0001] The present invention relates to industrial waste water, domestic sewage reverse osmosis (RO) membrane advanced treatment technology and reverse osmosis seawater desalination (SWRO) technology, in particular to the recycling and utilization of industrial wastewater in coastal areas and SWRO energy-saving technology, namely a A seawater desalination process in which wastewater and seawater are mixed and treated with reverse osmosis membranes. Background technique:

[0002] With the rapid development of industry, shortage of fresh water resources and energy, environmental problems have become increasingly serious, affecting the development of the national economy. At present, the state is vigorously supporting desalination, advocating energy conservation, emission reduction and environmental protection.

[0003] Ocean water accounts for 96.15% of the total global water reserves, and nearly 70% of humans live in places less than 120 kilometers away from the se...

Claims

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