Circulating forward osmosis high-salinity organic wastewater treatment system capable of operating continuously
A technology for organic wastewater treatment and forward osmosis, which is used in osmosis/dialysis water/sewage treatment, natural water treatment, water/sewage treatment, etc. It can solve problems such as the inability to guarantee process continuity, and achieve a simple pretreatment process and realize recycling. Utilize and ensure the effect of continuity
Active Publication Date: 2017-02-22
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that the entire treatment process needs to be stopped during backwashing of the membrane in the process of forward osmosis treatment of high-salt organic wastewater, and the continuity of the process cannot be guaranteed. Circulating forward osmosis high-salt organic wastewater treatment system
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[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with the accompanying drawings.
[0025] Such as figure 1 As shown, a kind of continuously operable circulating forward osmosis high-salt organic wastewater treatment system of the present invention comprises 8. forward osmosis device A, 21. forward osmosis device B, 14 draw liquid regeneration device, 1. raw material liquid supply Box, 24. Raw material liquid collection box, 15. Drawing liquid feeding tank, 20. Water tank, characterized in that: the raw material liquid feeding tank 1 is respectively connected with the inlet of the raw material liquid chamber A8.1 and the raw material liquid chamber B21.1 through pipelines The inlet of the raw material liquid chamber 24 is connected with the outlet of the raw material liquid chamber A8.1 and the outlet of the raw material liq...
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The invention relates to a forward osmosis wastewater treatment system, in particular to a circulating forward osmosis high-salinity organic wastewater treatment system capable of operating continuously. The wastewater treatment system comprises a forward osmosis device A, a forward osmosis device B, a draw solution regenerating device, a feed solution supplying tank, a feed solution collecting tank, a draw solution supplying tank and a water tank. The wastewater treatment system is characterized in that the feed solution supplying tank and the feed solution collecting tank are respectively connected with the forward osmosis device A and the forward osmosis device B; the water tank is respectively connected with the forward osmosis device A and the forward osmosis device B; the inlet of the draw solution regenerating device is respectively connected with outlets of a draw solution cavity A and a draw solution cavity B; the outlet of the draw solution regenerating device is connected with the draw solution supplying tank; the draw solution supplying tank is respectively connected with the inlets of the draw solution cavity A and the draw solution cavity B; the draw solution regenerating device is connected with the water tank, and a branch is arranged on a pipeline; the water tank is connected with the feed solution supplying tank. The wastewater treatment system provided by the invention has the advantages that one of devices operates and the other one is standby in an operation process, technology continuity can be guaranteed, and draw solution is subjected to concentration treatment by virtue of a reverse osmosis technology and can be recycled.
Description
technical field [0001] The invention relates to a forward osmosis wastewater treatment system, in particular to a continuously operable circulating forward osmosis high-salt organic wastewater treatment system. Background technique [0002] In the petrochemical industry, especially in the production process of petroleum refining and coal chemical industry, a large amount of high-salt and high-concentration organic wastewater will be produced. The direct discharge of these wastewater without effective treatment will cause serious environmental pollution and endanger the health of residents and ecological security. Existing processes commonly used in the treatment of high-salt and high-concentration organic wastewater include reverse osmosis, multi-effect evaporation crystallization, electrodialysis, etc. complex issues. As a new type of osmosis-driven membrane separation process, forward osmosis mainly relies on the osmotic pressure difference between the concentrated solut...
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IPC IPC(8): B01D61/00B01D65/02C02F1/44C02F101/30C02F103/36
CPCB01D61/002B01D65/02C02F1/445C02F2101/30C02F2103/365C02F2303/16B01D2311/25B01D2321/04B01D2315/18Y02A20/131
Inventor 徐姗姗林朋飞仲理科
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)