Chemical pharmaceutical wastewater pretreatment enhancement device and enhancement treatment method thereof

Abstract

The invention discloses a chemical pharmaceutical wastewater pretreatment enhancement device. The device comprises an enhanced coagulation reaction basin, a first vertical sedimentation basin, a multiphase Fenton oxidation reactor, an ozone oxidation treatment system and a second vertical sedimentation basin which are orderly communicated; and meanwhile, the invention discloses an enhancement treatment method of the device. In comparison with the traditional homogeneous phase Fenton method, the multiphase Fenton oxidation method is wider in suitable pH value, and faster in oxidation rate and better in degradation effect, and can provide catalyst iron ion for the ozone at the same time; the ozone has strong oxidation degradation effect on the organic pollutants in the water, and is capable of converting the complex organic pollutants into simple organics to realize the functions of decoloring, deodorizing, reducing COD and improving biodegradability, and the ozone has the advantages of being fast in speed, good in effect, free from secondary pollution, capable of producing in place and easily obtaining raw materials when reacting with the organic pollutants; and the multiphase Fenton oxidation method and the ozone oxidation form the organic coupling so as to effectively enhance the pretreatment effect of the chemical pharmaceutical wastewater.

Description

technical field [0001] The invention relates to a chemical and pharmaceutical wastewater pretreatment strengthening device and a strengthening method, belonging to the technical field of sewage devices. Background technique [0002] The wastewater in the chemical and pharmaceutical industry often has a very high concentration of organic matter, and most of the wastewater is toxic and harmful. It is one of the most difficult wastewater in the field of industrial water treatment, which puts great pressure on the environmental protection, energy saving and emission reduction of pharmaceutical companies. At present, there are no treatment processes that can be widely promoted at home and abroad. Now common combination processes include: physical and chemical pretreatment plus biological treatment, electrochemical pretreatment plus biological treatment, anaerobic pretreatment plus conventional biological treatment, etc. [0003] In recent years, domestic researchers have conducte...

AI Technical Summary

Problems solved by technology

The pretreatment effect of chemical and pharmaceutical wastewater often affects the final treatment result of wastewater, but the ideal pretreatment effect cannot be achieved with the existing traditional technology and process methods, so a new technology is needed to improve the pretreatment effect of wastewater. so that the subsequent processing will be smoother

At the same time, with the implementation of the "Chemical Synthesis Pharmaceutical Industry Water Pollutant Discharge Standard" (GB 21904-2008), the existing chemical and pharmaceutical wastewater treatment technologies can no longer meet the new environmental discharge standards, and the wastewater treatment stations of various chemical and pharmaceutical companies are all There are problems with the upgrading of old wastewater treatment technology and process standardization, which makes us have to pay attention to the pretreatment effect of chemical and pharmaceutical wastewater, so as to ensure the normal operation and effect of the subsequent biochemical stage

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