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Method for advanced treatment of antibiotic waste water by combination of Fenton oxidation and MBR

A technology of antibiotic wastewater and Fenton oxidation, which is applied in the fields of oxidized water/sewage treatment, chemical instruments and methods, aerobic and anaerobic process treatment, etc. , cost cost, the effect of simple process flow

Active Publication Date: 2016-09-07
AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it failed to solve the problem that antibiotic wastewater contains a large amount of microbial refractory organic matter, and it is still difficult to meet the discharge standards, mainly in the case of excessive COD and chroma, and antibiotics can still be detected in the effluent

Method used

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  • Method for advanced treatment of antibiotic waste water by combination of Fenton oxidation and MBR
  • Method for advanced treatment of antibiotic waste water by combination of Fenton oxidation and MBR
  • Method for advanced treatment of antibiotic waste water by combination of Fenton oxidation and MBR

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Taking the waste water of an antibiotic pharmaceutical company as an example, the waste water is successively processed through the grille, regulating tank, hydrolytic acidification tank, Fenton oxidation tank, anaerobic tank and MBR aerobic tank. The polyaluminium chloride of wastewater in the regulating tank is 30mg / L, the polyacrylamide is 5mg / L, and the hydraulic retention time is 2h; the hydraulic retention time of wastewater in the hydrolytic acidification tank is 36h, and the pH value is 6.0; the wastewater is oxidized in Fenton pH in the pool is 2.0, Fe 2+ 10mg / L, H 2 o 2 The pH of wastewater in the anaerobic tank is 6.8, the dissolved oxygen is 0.2mg / L, and the hydraulic retention time is 36h; the pH of wastewater in the MBR aerobic tank is 6.5, and the dissolved oxygen is 2mg / L, the hydraulic retention time is 32h, the membrane adopts polyvinylidene fluoride hollow fiber membrane, and the membrane flux is 20L / (m 2 h), the membrane pore size is 0.1μm, and t...

Embodiment 2

[0030] Taking the waste water of an antibiotic pharmaceutical company as an example, the waste water is successively processed through the grille, regulating tank, hydrolytic acidification tank, Fenton oxidation tank, anaerobic tank and MBR aerobic tank. The polyaluminium chloride of wastewater in the regulating tank is 40mg / L, the polyacrylamide is 8mg / L, and the hydraulic retention time is 5h; the hydraulic retention time of wastewater in the hydrolytic acidification tank is 24h, and the pH value is 6.0; the wastewater is oxidized in Fenton pH in the pool is 4.0, Fe 2+ 20mg / L, H 2 o 2 The pH of the wastewater in the anaerobic tank is 6.8, the dissolved oxygen is 0.1mg / L, and the hydraulic retention time is 24h; the pH of the wastewater in the MBR aerobic tank is 6.5, and the dissolved oxygen is 4mg / L, the hydraulic retention time is 24h, the membrane adopts polyvinylidene fluoride hollow fiber membrane, and the membrane flux is 40L / (m 2 h), the membrane pore size is 0.3μ...

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Abstract

The invention discloses a method for advanced treatment of antibiotic waste water by combination of Fenton oxidation and MBR. The method comprises the steps of: filtering the antibiotic waste water through a grid, then performing coagulating sedimentation on the filtered antibiotic waste water in an adjusting tank and acidification treatment in a hydrolytic acidification tank sequentially, performing Fenton oxidation treatment on the antibiotic waste water after acidification treatment in a Fenton oxidation tank, and performing microbial treatment on the waste water after the Fenton oxidation treatment in an anaerobic tank and an MBR aerobic tank sequentially. The method uses a Fenton oxidation process to realize initial oxidative degradation of antibiotics and refractory organic substances in the antibiotic waste water, and realizes advanced treatment of the waste water by combining an MBR process to ensure that the effluent quality reaches a water quality standard of GB21903-2008, and the method is simple in process flow and low in cost, and can be popularized for application.

Description

technical field [0001] The invention relates to a method for advanced treatment of antibiotic wastewater; in particular to a method for combined advanced treatment of antibiotic wastewater by Fenton oxidation-MBR; it belongs to the field of organic wastewater treatment. Background technique [0002] At present, there are more than 300 enterprises related to the production of antibiotics in my country, and the output and export volume of antibiotics have ranked first in the world. However, various stages in the production process of antibiotics, such as microbial fermentation, filtration, crystallization, extraction, extraction, refining, etc., will generate a large amount of antibiotic wastewater. And antibiotic wastewater has the characteristics of very high COD, high concentration of suspended solids, complex components, residual antibiotics, high salt content, high chroma, intermittent discharge, etc., and belongs to high-concentration organic wastewater that is very diff...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/34C02F101/30
CPCC02F1/52C02F1/72C02F1/722C02F3/30C02F9/00C02F2101/305C02F2103/343
Inventor 庄晓杰
Owner AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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