High-salt epoxy resin production waste-water film integrated salt recovery and biochemical treatment method

A salt epoxy resin and wastewater production technology, applied in the field of industrial wastewater treatment, can solve the problems of enterprise acceptance, high energy consumption, and high operating costs, and achieve the effects of creating economic benefits, high sludge concentration, saving energy and operating costs
CN1850635AInactive Publication Date: 2006-10-25ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2006-10-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a membrane-process integration salt recovering and biochemical processing method for waste water from high-salinity epoxy resin production, purifying and splitting waste water, i.e. processing the washing waste waters of different salinities and concentrations, respectively: concentrating little amounts of waste water with high salinity and high concentration by membrance distillation integration technique and screening out salt; preprocessing large amounts of rinsing waste water with low salinity and low concentration of organic matters and then processing in a two-stage biochemical processing system, to meet the specified effluent standard. And it largely solves the problem of serious inhibition of high-salinity organic waste water to the biotreatment and adopts salt recovering and water recycling processes, and large amounts of waste heat can serve as a heat source of membrane distillation and the afterheat of the waste water can be used by the membrane distillation.
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Description

technical field

[0001] The invention belongs to the technical field of industrial waste water treatment, and in particular relates to a membrane method integrated salt recovery and biochemical treatment method for high-salt epoxy resin production waste water. Background technique

[0002] The wastewater pollution problem with high salinity and high organic content produced in the production process of epoxy resin has gradually become a bottleneck restricting the further development of the industry. In particular, the production of solid epoxy resin requires a large amount of high-quality washing water. The water consumption per ton of solid epoxy resin is nearly 20 tons, which makes it impossible to produce in areas with scarce water resources and serious water pollution. Therefore, it is urgent to develop a technologically advanced, economical and practical epoxy resin wastewater treatment technology. In addition, this technology can also be extended to the treatment of hig...

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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