Advanced treatment process for phenolic resin production wastewater in abrasive grinding tool production

Abstract

The invention discloses an advanced treatment process of phenolic resin wastewater in abrasive grinding tool production. The method comprises the steps of sedimentation, demulsification, flocculation,hydrolytic acidification, aerobic treatment, secondary flocculation, Fenton oxidation, ultrafiltration and ultrahigh-pressure reverse osmosis. The invention provides a whole set of process combiningmultiple treatment modes to solve the problems of long treatment flow, poor treatment effect and large occupied area in the existing process. The problem of secondary pollution is solved; the wastewater treated by the process disclosed by the invention can reach the discharge standard required by the country; the process advantages of efficient biological treatment, energy saving, consumption reduction, land occupation saving, simple operation and maintenance and the like are realized, and the control and operation modes of the existing biological sewage treatment system are thoroughly updated. The biochemical wastewater is treated by adopting a ultrafiltration system, pure physical filtration is performed, the effluent quality is stable, produced water is ensured to completely reach the discharge standard, and pretreatment is performed for a subsequent DTRO system.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a process for advanced treatment of phenolic resin wastewater in the production of abrasives and abrasive tools. Background technique [0002] The selection of phenolic resin production wastewater treatment process is the key to the construction of phenolic resin production wastewater treatment project. Whether the treatment process is reasonable or not is directly related to the treatment effect, drainage water quality, operation stability, investment, operation cost and management operation level of phenolic resin production wastewater treatment. Therefore, it is necessary to combine the actual situation, comprehensively consider various factors, and carefully select the appropriate treatment process to achieve the best treatment effect and economic benefits. [0003] Due to the different composition, acidity and alkalinity, and concentration of phenolic and forma...

AI Technical Summary

Problems solved by technology

[0022] Most of the above methods are completed in the laboratory, and have not been tested in practice. Some of the processing costs are high, and some of the processes are very complicated. When applied to industry, it will bring a lot of trouble in operation. Therefore, there is an urgent need for a A simple and practical method to treat wastewater containing phenolic resin production to meet discharge standards

Images