A kind of fermented antibiotic wastewater treatment method

Abstract

The application of the present invention belongs to the technical field of water, wastewater, sewage or sludge treatment, and specifically discloses a method for treating fermented antibiotic wastewater, including a pretreatment stage and a biochemical treatment stage. The pretreatment stage includes the following steps: (1) removing suspended matter (2) add unslaked lime in the waste water after step (1) treatment, make waste water pH=8-10; (3) add cationic polymer in the waste water after step (2) treatment; (4) adopt filter membrane to Step (3) filtered wastewater treated; (5) adding concentrated sulfuric acid to the wastewater treated in step (4) until the wastewater pH=2-3; (6) adding quicklime to the wastewater treated in step (5) , making the wastewater pH=6-8; (7) sedimentation and filtration of the wastewater treated in step (6). The method not only can inactivate the antibiotics without secondary pollution, but also can settle part of the ions generated after the antibiotics are hydrolyzed, thereby effectively reducing the concentration of waste water.

Description

technical field [0001] The invention belongs to the technical field of water, waste water, sewage or sludge treatment, and specifically discloses a method for treating fermented antibiotic waste water. Background technique [0002] Fermentation antibiotic wastewater refers to the wastewater produced when antibiotics or other active ingredients are produced by fermentation. In recent years, my country's antibiotic pharmacy has developed rapidly. More than 300 domestic enterprises can produce more than 70 kinds of antibiotics, and the output of antibiotics accounts for 20%-30% of the world's antibiotic output. The wastewater quality of antibiotics has problems such as complex components, poor biodegradability, large wastewater discharge and large changes in wastewater volume. In addition, antibiotic wastewater contains a large number of antibiotics and metabolites, which have certain acute toxicity and microbial inhibition. [0003] From the perspective of the water quality ...

AI Technical Summary

Problems solved by technology

Existing deactivation methods often cause secondary pollution to the environment

[0004] In addition, in addition to a large amount of antibiotics, wastewater also contains a large amount of sulfate. If the wastewater containing a large amount of sulfate is discharged into the water body, the sulfate has a strong inhibitory effect on microorganisms, and will cause the water body to produce foul smell and Corrosive H 2 S, directly endangering human health and ecological balance

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