Treatment method of wastewater with high salinity and high organic matters

A treatment method and organic matter technology, applied in the direction of heating water/sewage treatment, oxidized water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of reducing waste water, unable to solve the problem of concentrated water treatment, etc., to achieve the reduction of membrane pollution, achieve continuous and stable operation, and reduce the effect of membrane fouling tendency
CN103803752AActive Publication Date: 2014-05-21CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2014-05-21

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Abstract

A treatment method of wastewater with high salinity and high organic matters comprises the following steps: 1) the wastewater goes into a Feton oxidation pond, the pH of the wastewater is adjusted to 2-3 by using an acid, and then H2O2 and Fe<2+> are added, a reaction is carried out for 60-80 min, and an alkali solution is added until the pH of the wastewater is 7-9; 2) the wastewater treated in the step 1) goes into a microfiltration membrane filter and is filtered; and 3) vacuum membrane distillation is carried out. The method is aimed at waste alkali liquid wet oxidized wastewater in an ethylene production and adopts the Feton oxidation pond and the microfiltration membrane filter, and the organic matter removal rate is above 90%, so the membrane pollution is reduced, the concentration multiple of the membrane distillation is increased, and continuous and stable operation of the membrane distillation can be achieved. Moreover, the wastewater treated by the membrane distillation system has no need of addition of an acid to adjust the pH, and thus the reagent cost is saved. The wastewater with high salinity and high organic matters is effectively reused, and the corrosion to equipment pipe fittings of a sewage treatment system is prevented.
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Description

technical field

[0001] The invention relates to a wastewater treatment method, in particular to a treatment method for high-salt and high-organic-matter wastewater, which is suitable for the treatment method of waste lye wet oxidation wastewater in ethylene production. Background technique

[0002] With the development of the economy and the reduction of water resources, the status of water in industrial production has become more and more important. The petrochemical industry is an industry with high energy consumption and high pollution. It discharges a large amount of industrial sewage every year. Ethylene production How to effectively treat waste lye wet oxidation wastewater is also a very difficult environmental protection problem. Due to the influence of its physical properties and components, there has been no effective treatment method. At present, it is mainly discharged to the sewage field for biochemical treatment together with other waste water produced in the et...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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