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Method for treating pharmaceutical wastewater

A treatment method and technology for pharmaceutical wastewater, applied in the field of water treatment, can solve problems such as single function, single technical function, harsh conditions, etc., achieve low investment, low operating cost, and ensure the effect of complete redox

Inactive Publication Date: 2013-02-13
JIANGSU UNIV
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Problems solved by technology

[0003] At present, there are many treatment methods for pharmaceutical wastewater at home and abroad, such as the published patent "A Biopharmaceutical Wastewater Treatment Method" (CN 101746919A), in which anaerobic treatment is used, the conditions are relatively harsh and the function is single
In addition, there are many reports in this regard, and its technology generally has shortcomings such as single function and harsh conditions.

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  • Method for treating pharmaceutical wastewater

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Embodiment Construction

[0014] The present invention will be described in detail below, but the present invention is not limited by the interpretation of these examples.

[0015] The technological process of the present invention includes a regulating and stabilizing pond, a coagulation and sedimentation pond, a micro-electrolysis reactor, a multistage Fenton pond, a chemical regulating pond and an active carbon filter pond.

[0016] The present invention will be described in further detail in conjunction with the accompanying drawings.

[0017] A method for treating pharmaceutical wastewater, comprising:

[0018] (1) Stability adjustment: In the adjustment and stabilization pool, adjust the water volume, balance the water quality, and ensure the continuous operation of the subsequent sewage treatment process. The hydraulic retention time of the wastewater is 9-10 h, and the pH is adjusted by adding dilute sulfuric acid to make the pH of the wastewater 3~4 .

[0019] (2) Coagulation sedimentation:...

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Abstract

The invention discloses a method for treating pharmaceutical wastewater and belongs to the field of water treatment. The method can guarantee pharmaceutical wastewater treatment effects and orderly comprises an adjustment stabilization stage, a flocculation precipitation stage, a composite microelectrolysis stage, a multistep Fenton stage, a chemical regulation stage and an activated carbon filtration stage of pharmaceutical wastewater. The method fully utilizes a high-grade oxidation process and is an environmentally-friendly energy-saving technology. The method has the advantages that an adjustment stabilization unit, a flocculation precipitation unit, a composite microelectrolysis unit, a multistep Fenton unit, a chemical regulation unit and an activated carbon unit are combined dynamically so that thorough oxidation-reduction of pharmaceutical wastewater is realized; and the method has a high organic matter removal rate, a low investment cost, low energy consumption, a low operation cost and strong practicality.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a pharmaceutical wastewater treatment method. Background technique [0002] With the development of science and technology, the pharmaceutical industry is also advancing, but because the wastewater produced by the pharmaceutical industry has a bad impact on the environment, the treatment of pharmaceutical wastewater needs to be solved urgently. The raw materials used in the pharmaceutical industry have many chemical substances. Due to their incomplete reaction during the production process, a large number of residual chemical substances enter the wastewater, including imidacloprid, benzosulfone, calcium carbonate, sodium sulfate and various additives. , so that the concentration of pollutants in the wastewater is very high, and most of the pollutants have certain toxicity, and the direct discharge of wastewater is very harmful to the water body. [0003] At present, there are many...

Claims

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Application Information

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IPC IPC(8): C02F9/06
Inventor 解清杰蒋志辉范翠萍黄晓龙姚一凡
Owner JIANGSU UNIV
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