Method for treating erythromycin thiocyanate wastewater

A treatment method and technology for wastewater, applied in natural water treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of incomplete treatment of pollutants and high treatment costs, and achieve good removal effect The effect of high degree of automation and good economic benefits

Active Publication Date: 2013-04-03
SHANDONG NEWTIME PHARMA
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of high treatment cost and incomplete treatment of pollutants in the existing antibi

Method used

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  • Method for treating erythromycin thiocyanate wastewater

Examples

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Example Embodiment

[0029] Example 1 Erythromycin thiocyanate industrial wastewater treated by the wastewater treatment method of the present invention

[0030] A biopharmaceutical company produces 1,000 tons of erythromycin thiocyanate annually, and the total amount of sewage produced per day is 6,000 cubic meters. Fermentation process wastewater, extraction process wastewater, salt formation process wastewater, purification process wastewater, etc. enter the adjustment tank 1 after mixing COD and NH 3 -N, SCN - , SO 4 2- They are 40000mg / L, 1000mg / L, 1800mg / L, 800mg / L. Polyferric sulfate was added at a ratio of 2‰ and settled for 3 hours. After this step, the COD removal rate was 10-15%, and the precipitate was discharged through the sedimentation tank 1. At the same time, add hydrochloric acid to adjust the pH value of wastewater to about 3. In the yeast treatment system, maintain the temperature at 32℃ and add high-efficiency yeast at a ratio of 4‰. After 48 hours of reaction, the wastewater ent...

Example Embodiment

[0035] Example 2 Using the wastewater treatment method of the present invention to treat erythromycin thiocyanate process wastewater

[0036] A biopharmaceutical company produces 1,000 tons of erythromycin thiocyanate annually, and the total amount of sewage produced per day is 6,000 cubic meters. Fermentation process wastewater, extraction process wastewater, salt formation process wastewater, purification process wastewater, etc. enter the adjustment tank 1 after mixing COD and NH 3 -N, SCN - , SO 4 2- Respectively 45000mg / L, 1300mg / L, 2000mg / L, 1000mg / L. Polyferric sulfate was added at a ratio of 2.5‰ and settled for 3 hours. After this step, the COD removal rate was 13-17%, and the precipitate was discharged through the sedimentation tank 1. At the same time, add hydrochloric acid to adjust the pH of the wastewater to about 3; in the yeast treatment system, maintain the temperature at 32℃ and add high-efficiency yeast at a ratio of 3.5‰. After 44 hours of reaction, the wastew...

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Abstract

The invention relates to a method for treating industrial wastewater and application of the method, belonging to the field of wastewater treatment. The method for treating wastewater comprises the steps: conducting yeast treatment, catalysis microelectrolysis, two-phase anaerobic treatment, CASS (Cyclic Activated Sludge System) method treatment, advanced oxidization and biological aerated filter to industrial wastewater. In the method for treating wastewater, the treatment units are reasonably combined, COD and ammonia nitrogen removal efficiency is high, and the wastewater treated by using the method can meet the demand of up-to-standard emission or backwater recycling. The method for treating the wastewater is low in running cost, very applicable to treatment of antibiotic industrial wastewater, especially to treatment of erythromycin thiocyanate wastewater, thus the method has wide industrial application prospects.

Description

technical field [0001] The invention relates to a method for treating pharmaceutical industrial wastewater, in particular to a method for treating wastewater produced by erythromycin thiocyanate, which belongs to the field of wastewater treatment. Background technique [0002] Erythromycin thiocyanate belongs to macrolide antibiotics, and is mostly used in the synthesis of azithromycin, erythromycin, roxithromycin, clarithromycin and other antibiotics. In the process of extraction, salt formation and purification of erythromycin thiocyanate, high-concentration refractory organic wastewater containing a large amount of pollutants is produced, which is characterized by: 1) High organic load: COD up to 30000-60000mg / L, NH 3 -N content exceeds 800mg / L; 2) High SCN - , its content reaches 1000~2000mg / L; 3) There are bioinhibitory substances, such as residual organic solvents, surface active substances, high-concentration salts, residual potency, etc.; 4) High temperature, high s...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/36
Inventor 刘治华朱文杰陈建华苏建文
Owner SHANDONG NEWTIME PHARMA
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