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Pharmaceutical wastewater technology using microelectrolysis-Feton-EGSB (expanded granulate sludge bed)-A/O (anaerobic/aerobic)-BCO (biological contact oxidizing)-BAF (biological aeration filtering)-coagulation treatment

A technology of pharmaceutical wastewater and micro-electrolysis, applied in the field of environmental science and engineering, can solve the problems of high operating costs and difficult discharge standards, and achieve the effects of reducing treatment load, increasing concentration and saving pharmaceutical costs.

Inactive Publication Date: 2017-07-07
NANCHANG UNIV
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Problems solved by technology

However, a single treatment method not only has high operating costs, but also is difficult to meet emission standards

Method used

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  • Pharmaceutical wastewater technology using microelectrolysis-Feton-EGSB (expanded granulate sludge bed)-A/O (anaerobic/aerobic)-BCO (biological contact oxidizing)-BAF (biological aeration filtering)-coagulation treatment

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Embodiment Construction

[0021] The processing capacity is 300m 3 / d of pharmaceutical wastewater (50t / d for high-concentration wastewater, 200t / d for low-concentration wastewater, and 50t / d for domestic sewage), among which the quality of high-concentration wastewater: CODCr 85000~90000mg / L, NH 3 -N 150~200mg / L, TP70~100mg / L, pH 3~6mg / L. Low concentration wastewater quality: CODCr 7000~8000mg / L, NH 3 -N 120~150mg / L, TP 30~50mg / L, pH 3~8mg / L. Domestic sewage water quality CODCr 200~400mg / L, NH 3 -N 20~30mg / L, TP 3~5mg / L, pH 7~8mg / L. The high-concentration pharmaceutical wastewater passes through the grease trap and regulating tank in turn to remove floating oil and adjust the water quality and quantity, and then is lifted by the lift pump to the iron-carbon micro-electrolytic pool. The iron-carbon electrolytic cell uses the acidity of wastewater and the potential difference between iron-carbon particles to form countless tiny primary cells to produce electrochemical reactions, and under the action...

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Abstract

The invention relates to a pharmaceutical wastewater technology using microelectrolysis-Feton-EGSB (expanded granulate sludge bed)-A / O (anaerobic / aerobic)-BCO (biological contact oxidization)-BAF (biological aeration filtration)-coagulation treatment. High-concentration pharmaceutical wastewater is sequentially sent into an oil separation tank, a conditioning tank, a microelectrolysis reaction tank, a Feton catalytic oxidation tower, a horizontal flow type primary settling tank, a comprehensive conditioning tank, a hydrolysis acidifying tank, the EGSB, an A / O tank, a two-stage BCO tank, a secondary settling tank, a BAF tank, a coagulation tank, an air floating tank and a final settling tank to be treated, and then is drained after the standard is reached. The technology has the advantages that the technique is matured, the treatment effect is stable, and the anti-impact ability is strong; after the pharmaceutical wastewater is treated by the combined technology, the quality of drained water can reach the class-one standard of Comprehensive Drainage Standard of Wastewater (GB8978-1996).

Description

technical field [0001] The invention relates to a micro-electrolysis, Fenton oxidation tower, expanded granular sludge bed (EGSB), anoxic / aerobic tank (A / O), two-stage biological contact oxidation tank (BCO), biological aerated filter ( BAF), coagulation tank combined treatment process of pharmaceutical wastewater, belongs to the field of environmental science and engineering technology. Background technique [0002] In recent years, my country's pharmaceutical industry has developed rapidly, and there are a large number of pharmaceutical companies, which produce tens of thousands of drugs and nearly one million tons of pharmaceuticals every year. The amount of pharmaceutical wastewater produced is large, but the average annual treatment rate is less than 30%. Due to the complex composition of pollutants in pharmaceutical wastewater, high toxicity, high chroma, refractory biodegradation, and large changes in water quality and quantity, it is a difficult type of industrial wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/10C02F101/16C02F101/30C02F103/34
CPCC02F1/24C02F1/463C02F1/52C02F1/722C02F1/725C02F3/308C02F9/00C02F2001/007C02F2101/105C02F2101/16C02F2101/30C02F2103/343C02F2303/02C02F2305/026
Inventor 万金保付煜刘峰
Owner NANCHANG UNIV
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