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

A technology of phenolic resin and abrasives, which is applied in the direction of neutralization water/sewage treatment, water/sewage treatment, natural water body treatment, etc. It can solve problems such as troublesome operation, complicated process, and high treatment cost, so as to save land and solve problems. The effects of secondary pollution and stable effluent quality

Active Publication Date: 2020-08-04
ZHENGZHOU UNIV MULTI-FUNTIONAL DESIGN & RES ACAD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 in

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

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Embodiment 1

[0051] Such as figure 1 As shown, the phenolic resin wastewater produced in the production process of an abrasive abrasive tool manufacturer is subjected to advanced treatment. The main source of the phenolic resin wastewater is: a. The original cloth treatment wastewater. The main components of the wastewater are suspended solids, starch, PVA and a small amount of alkali liquid; the formaldehyde content is 10mg / L, the phenol content is 480mg / L, and the COD content is 760mg / L;

[0052] b. Production line waste water, mainly refers to the disposable waste water produced by cleaning equipment that contains harmful components, the formaldehyde content is 20mg / L, the phenol content is 968mg / L, and the COD content is 7450mg / L;

[0053] c. Wastewater from the compounding workshop mainly refers to the waste water produced by resin batching and containing harmful components. The content of formaldehyde is 150mg / L, the content of phenol is 11025-11205mg / L, and the content of COD is 100...

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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...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/38
CPCC02F9/00C02F2001/007C02F1/40C02F1/66C02F1/56C02F1/5236C02F1/24C02F3/30C02F1/722C02F1/725C02F2305/026C02F2103/38C02F1/444C02F1/441
Inventor 张伟东关罡梁欣赵瑞芳尚志祥高建红申素岭张新军李军记
Owner ZHENGZHOU UNIV MULTI-FUNTIONAL DESIGN & RES ACAD CO LTD
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