青霉素生产废水深度处理

发布时间：2018-06-20 10:32

  本文选题：青霉素生产废水 + Fenton试剂　； 参考：《山西大学》2015年硕士论文

【摘要】：青霉素生产废水水质成分复杂,CODcr浓度高,硫酸盐浓度高,水量波动大,难降解,处理水长期存在不达标的问题。本研究采用Fenton试剂氧化法、Cu/Fe催化还原法、曝气铁碳微电解法、臭氧氧化法对青霉素生产废水生化处理后的出水进行了深度处理研究,以期为青霉素生产废水的深度处理提供参考。采用了Fenton试剂氧化法、Cu/Fe催化还原法、曝气铁碳微电解法、臭氧氧化法这4种方法,考察了4种方法的影响因素对处理效果的影响。结果表明,Fenton试剂氧化法的最佳条件是H202(质量分数30%)投加量为100ml/L, Fe~(2+)和H202配比(摩尔比)为1/10,pH值为3.0,反应时间为0.5h,在最佳条件下CODcr去除率达到89.7%,BOD5去除率达到36.4%,NH3-N去除率达到98.8%；Cu/Fe催化还原法的最佳条件是反应温度为25℃,铜铁总投加量为60.00g/L,铜铁投加比例为1：4,废水pH为4.5,反应时间为1h,在最佳条件下CODcr去除率达到64.2%,BOD5去除率达到47.1%,NH3-N去除率达到97.8%；曝气铁碳微电解法的最佳条件是曝气时间为2.0h,铁炭投加量为66.67g/L,铁碳比1：1,曝气量为0.25L/min,初始pH值为4.0,在最佳条件下,CODcr去除率达到58.7%,BOD5去除率达到42.2%,NH3-N去除率达到99.2%；臭氧氧化法的最佳条件是通气时间为20min,臭氧通入量为6.67g/L,反应温度为30℃,废水pH为10.0,在最佳条件下,CODcr去除率可达60.7%,BOD5去除率可达47.9%,NH3-N去除率达到96.8%。研究结果显示,4种方法中Fenton试剂氧化法处理效果最好,出水COD_(cr)为22.5mg/L,达到《GB 8978-1996))中的一级排放标准。
[Abstract]:The water quality of penicillin wastewater is characterized by high concentration of CODcr, high concentration of sulfate, large fluctuation of water quantity and difficulty of degradation. The problem of water treatment is not up to standard for a long time. In this paper, the advanced treatment of effluent from penicillin production wastewater after biochemical treatment was studied by Fenton reagent oxidation method and catalytic reduction of Cu / Fe, aerated iron-carbon microelectrolysis and ozone oxidation. In order to provide a reference for the advanced treatment of penicillin production wastewater. The Fenton reagent oxidation method Cu- / Fe catalytic reduction method, aerated iron-carbon micro-electrolysis method and ozone oxidation method were used. The influence factors of the four methods on the treatment effect were investigated. The results show that the optimum conditions of Fenton reagent oxidation method are that the dosage of H2022 (30wt%) is 100ml / L, Feb2) and the molar ratio of H202 (molar ratio) is 1 / 10 (pH = 3.0), the reaction time is 0.5 h, and the removal rate of CODcr reaches 89.7BOD5 and the removal rate of NH _ 3-N reaches 98.8wt%. The optimum conditions are as follows: (1) the ratio of H _ (20) to H _ (20) is 100 ml / L, and the molar ratio of H _ (202) to H _ (202) is 3.0% and 0.5 h respectively. The optimum conditions for Cu- / Fe catalytic reduction are as follows: the reaction temperature is 25 鈩，

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