A kind of wastewater treatment recovery method
A recycling method and wastewater treatment technology, applied in non-polluted water treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of high cost, high pressure of sewage treatment, increased production costs, etc.
Active Publication Date: 2022-04-15
东莞市鸾江水处理设备工程有限公司
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Problems solved by technology
In its production process, ion exchange resin regeneration produces a large amount of waste water containing acid and alkali. Acid and alkali waste water is highly corrosive and contains various metal salts and organic impurities. The sewage treatment pressure is relatively high. After the neutralization of acid and alkali, it will be biodegraded again to meet the national emission standards, which costs a lot and increases the production cost of the product
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[0023] In order to describe the technical content, structural features, and achieved effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0024] Please refer to figure 1 , is a schematic flow chart of the waste water treatment and recovery process of the present invention, and the waste water treatment and recovery method comprises steps:
[0025] (1) Use a conductivity meter to test the conductivity of the waste water, the waste water with a conductivity of 150-1000 μs flows into the first raw water tank 10, the waste water with a conductivity of 1001-1500 μs flows into the second raw water tank 11, and the waste water with a conductivity of 1501-13000 μs Flow into the third raw water tank 12, and the waste water with a conductivity greater than 13000μs flows into the fourth raw water tank 13;
[0026] (2) The waste liquid of the first raw water tank 10 flows into the raw water ...
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The invention provides a wastewater treatment and recovery method, comprising steps: (1) flowing wastewater with a conductivity of 150-1000 μs into a first raw water tank, and flowing wastewater with a conductivity of 1001-1500 μs into a second raw water tank with a conductivity of 1501-1500 μs The waste water of 13000 μs flows into the third raw water tank, and the waste water with conductivity greater than 13000 μs flows into the fourth raw water tank; (2) the waste liquid of the first raw water tank flows into the raw water tank 14, the waste liquid of the second raw water tank flows into the raw water tank 15, and the waste liquid of the second raw water tank flows into the raw water tank 15, The waste liquid of three former water tanks flows into raw water tank 16; (3) the waste liquid in the raw water tank 14 flows into the first ultrafiltration device and the first reverse osmosis device and obtains pure water and strong water after being processed; The waste liquid in the raw water tank 15 passes through Pure water and concentrated water are obtained after treatment by the second ultrafiltration device and the second reverse osmosis device. The method can reuse pickling and alkali washing wastewater, reuse acid and alkali and part of pure water, save and utilize water resources, reduce wastewater discharge, and reduce environmental pollution.
Description
technical field [0001] The invention relates to the technical field of waste water treatment and recovery, in particular to a waste water treatment and recovery method. Background technique [0002] With the development of my country's manufacturing industry, production wastewater is also increasing day by day, causing serious pollution to the environment. In order to reduce the pressure on the environment, the country has formulated a series of environmental protection policies, which require the discharge of sewage from various industries to meet the discharge standards. Among them, starch The industry of sugar and its derivatives is developing even more rapidly. In its production process, ion exchange resin regeneration produces a large amount of waste water containing acid and alkali. Acid and alkali waste water is highly corrosive and contains various metal salts and organic impurities. The sewage treatment pressure is relatively high. After being neutralized by acid an...
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IPC IPC(8): C02F1/44C02F9/02C02F9/04C02F103/04
CPCC02F1/444C02F1/441C02F9/00C02F1/001C02F2303/14C02F2303/16C02F1/66
Inventor 包炳兴
Owner 东莞市鸾江水处理设备工程有限公司