Acetoacetanilide wastewater recycling process

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 ...

AI Technical Summary

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