Acetoacetanilide wastewater recycling process

A waste water recovery and diethylaniline technology, applied in water pollutants, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of iron-carbon micro-electrolysis not meeting the design requirements, anaerobic UASB tower Problems such as broken parts and loss of aerobic system processing capacity, etc., achieve the effect of easy desorption and regeneration, convenient operation and management, and small footprint

Inactive Publication Date: 2015-11-11
JIANGSU TIANCHENG BIOCHEM PROD
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Problems solved by technology

[0003] Operation status of existing facilities: after Fenton reaction, the residual aniline is about 30mg / L (diethylaniline is not detected), the residual aniline in the anaerobic effluent rises to more than 100mg / L, the aerobic effluent COD is about 2000mg / L, and the aerobic sludge The amount is very small, the processing capacity of the aerobic system is basically lost, the internal parts of the anaerobic UASB tower are broken and cannot operate normally, the effect of iron-carbon micro-electrolysis does not meet the design requirements, the amount of Fenton plus hydrogen peroxide is too large, the operating cost is too high, and the enterprise cannot afford

Method used

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Experimental program
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Embodiment Construction

[0026] This specific embodiment adopts following technical scheme: its recycling method:

[0027] 1) filter

[0028] Under normal circumstances, the acetoacetanilide wastewater discharged from the workshop is basically free of mechanical impurities and suspended solids. In order to ensure the normal development of the subsequent resin adsorption section, a quartz sand filter is set up here to filter and check.

[0029] 2) Resin adsorption

[0030] 2.1) Adsorption mechanism

[0031] Adsorption refers to the process in which one or more components in the fluid diffuse to the outer surface of the porous material and the inner surface of the micropores when the fluid is in contact with the porous solid material, and are adsorbed on these surfaces by the intermolecular van der Waals attraction. If the adsorbent is selective for the adsorption of a certain component in the fluid, then the component will be adsorbed and enriched on the resin, thereby realizing the separation from o...

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Abstract

The invention relates to the technical field of industrial wastewater treatment process, in particular to an acetoacetanilide wastewater recycling process. Acetoacetanilide wastewater is firstly subjected to preliminary filtration and then is recycled by means of the adsorption action of resin; afterwards the resin is subjected to desorption treatment, and finally recycling is realized and waste is reduced. The treatment process is simple, operation and management are convenient, a device is simple and small in occupied area, and NDA-150 resin has a property of selectively adsorbing naphthalene type organic matters, is high in adsorption efficiency and easy for desorption regeneration. In a whole wastewater treatment process, any new pollutant is not introduced, and secondary pollution is not generated. The NDA-150 resin is high in acid and alkali resistant capacity, high in mechanical strength and good in temperature resistance and has the service life of at least 4 years.

Description

Technical field: [0001] The invention relates to the technical field of industrial waste water treatment technology, in particular to a diethylaniline waste water recovery process. Background technique: [0002] The current sewage treatment process route: iron-carbon micro-electrolysis → Fenton → iron bed → UASB → aerobic → hydrolytic acidification → SBR [0003] Operation status of existing facilities: after Fenton reaction, the residual aniline is about 30mg / L (diethylaniline is not detected), the residual aniline in the anaerobic effluent rises to more than 100mg / L, the aerobic effluent COD is about 2000mg / L, and the aerobic sludge The amount is very small, the processing capacity of the aerobic system is basically lost, the internal parts of the anaerobic UASB tower are broken and cannot operate normally, the effect of iron-carbon micro-electrolysis does not meet the design requirements, the amount of Fenton plus hydrogen peroxide is too large, the operating cost is too ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F101/38
Inventor 陈飞王小清崔惠忠陶建峰刘长兵蒋玉林
Owner JIANGSU TIANCHENG BIOCHEM PROD
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