现代化工

现代化工 ›› 2020, Vol. 40 ›› Issue (S1) : 121-123,127. DOI: 10.16606/j.cnki.issn0253-4320.2020.S.026

科研与开发

O₃/H₂O₂氧化预处理高浓度抗生素制药废水研究

印献栋, 段锋

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Study on oxidation pretreatment of high-concentration wastewater from antibiotics production by ozone/hydrogen peroxide

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Received		Published
2020-04-15		2020-10-31
Issue Date	Revised Date
2020-11-03	2020-04-15

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摘要

采用O₃/H₂O₂氧化预处理抗生素制药废水，系统考察pH、温度、固体催化剂对污染物去除效果的影响，并研究氧化预处理对厌氧生化工艺的影响，通过气相色谱-质谱分析氧化前后有机物的变化。结果表明，提高温度和降低pH对O₃/H₂O₂氧化有利，添加MnO₂增强了催化氧化效果，而添加活性炭反而不利。氧化预处理降低了难生物降解有机物的浓度，使得厌氧生化工艺对COD去除效果由70.4%提高到81.9%。

Abstract

Wastewater from antibiotic production is pre-treated by O₃/H₂O₂ oxidation process.The influence of pH,temperature and solid catalyst on removal effect to COD pollutants is examined carefully and systemically.Meanwhile,the impact of O₃/H₂O₂ oxidation pretreatment on anaerobic biochemical process is also studied,and GC/MS is utilized to characterize organic pollutants before and after the pretreatment.Results show that both higher temperature and lower pH are beneficial to the oxidation by O₃/H₂O₂.For the catalyst,the addition of MnO₂ can enhance the oxidation process while the addition of activated carbon weakens it.O₃/H₂O₂ oxidation pretreatment drops the concentration of refractory pollutants,which helps anaerobic biochemical process to increase the removal efficiency of COD from 70.4% to 81.9%.