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Fenton氧化法对制药废水的预处理研究
供稿: 尹国勋；李惠；李成杰 时间: 2018-12-20 次数:

作者：尹国勋；李惠；李成杰

作者单位：河南理工大学资源环境学院

摘要：为了提高制药厂制药废水的可生化性,采用Fenton氧化法对其进行预处理,探讨了pH值、H2O2投加量、FeSO4投加量、反应时间等因素对COD去除率的影响.结果得到最佳反应条件为:pH值为1,H2O2(30%)投加量为0.25 mL(约833 mg/L),FeSO4.7H2O(0.3 mol/L)投加量为1 mL(约834 mg/L),反应时间为90 min,在此条件下,COD去除率可达21.97%,并用PAC作为混凝剂对此废水进行混凝实验,其对COD的去除率只有7.9%.两者相比,Fenton氧化法的效果好,可作为生化处理的预处理.

关键词：制药废水;Fenton氧化法;PAC;预处理;

DOI：10.16186/j.cnki.1673-9787.2011.06.016

分类号：X787

Abstract：In order to improve the biodegradability of pharmaceutical wastewater, Fenton oxidation has been employed to pretreat it.The factors having effects on COD removal, such as pH, H2O2 dosage, FeSO4 dosage and reaction time were discussed.The optimistic conditions were shown as follows: pH is 1, the reaction time is 90 min, the dosage of H2O2 (30%) and FeSO4 (0.3 mol/L) are 0.25 mL (about 833 mg/L) and 1 mL (about 834 mg/L) , respectively.In these conditions, the removal efficiency of COD is 21.97%.Use PAC as coagulant and mix the experiment of congealing to this waste water, its removal efficiency of COD is only 7.9%.Compared the two, the effective of Fenton oxidation is better.It can be used as pre-treatment of biological treatment.

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