Resourceful treatment system for high-concentration fumaric acid waste water

A treatment system, fumaric acid technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, ion exchange water/sewage treatment, etc., can solve the problem of low concentration, uneconomical operation, and membrane use Short service life and other issues, to achieve the effect of friendly operating environment, high automation rate, and small footprint

Inactive Publication Date: 2013-04-03
无锡恩奈迪技术有限公司
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Problems solved by technology

However, for the long-term operation of high-concentration wastewater, there is a problem of short membrane life and low concentration times, which will cause uneconomical operation, which needs to be improved.

Method used

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  • Resourceful treatment system for high-concentration fumaric acid waste water

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Embodiment Construction

[0013] A high-concentration fumaric acid waste water resource treatment system, comprising sequentially connected pretreatment system 001, nanofiltration treatment system 002, and reclaimed water reuse system 003, said pretreatment system 001 is composed of sequentially connected filtering device 011, Adsorption device 012, recovery system 013 constitute, described nanofiltration treatment system 002 is two-stage nanofiltration (021,022), the first stage nanofiltration 021 connects the adsorption device 012 in the pretreatment system 001, the second stage nanofiltration 022 Connected to the reclaimed water reuse system 003, the adsorption device 012 is two resin adsorption columns arranged in series, the first-stage nanofiltration system 002 is also provided with a pipeline connecting the adsorption device 012, and the filter device 011 is a bag filter device, the two-stage nanofiltration (021,022) is a sodium filter membrane.

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Abstract

The invention discloses a resourceful treatment system for high-concentration fumaric acid waste water, and relates to the field of sewage treatment. The resourceful treatment system comprises a pre-treatment system, a nano-filtration treatment system and a recycled water reuse system, wherein the pre-treatment system comprises a filtering device, an adsorption device and a recovery system; the filtering device is connected with the adsorption device, and the adsorption device is connected with the recovery system; and the nano-filtration treatment system comprises two levels of nano-filtration systems, the adsorption device is connected with the two levels of the nano-filtration systems sequentially, a second-level nano-filtration system is connected with the recycled water reuse system, and the adsorption device comprises two resin adsorption columns connected in series.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a system for treating high-concentration fumaric acid wastewater. Background technique [0002] Fumaric acid is produced by benzene oxidation, and the by-product of o-xylene oxidation production process is fumaric acid. The fumaric acid product, namely the fumaric acid mother liquor, is a kind of organic strong acid wastewater with high COD and high salinity. The wastewater contains fumaric acid, citric acid, benzoic acid, phthalic acid, thiourea and other high-concentration organic substances, COD: 20000—40000mg / L, conductance: 20000-30000 PH: 1-2, among which the pollution factor in wastewater is the main representative of fumaric acid, if it can be recovered by the process, it will become a useful resource, otherwise it will become the main pollutant in wastewater. [0003] Currently on the market to deal with high-concentration wastewater, commonly used wastewater treatment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C07C57/15C07C51/42C02F1/42C02F1/44
Inventor 蒋建生
Owner 无锡恩奈迪技术有限公司
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