摘要
采用铁碳微电解/H2O2耦合类Fenton法深度处理制药废水,考察不同铁碳比、H2O2投加量、溶液p H及反应时间对COD去除效果的影响,通过单因素实验和正交实验确定最优条件并与铁碳微电解法的去除效果进行对比。结果表明,各因素对COD的去除效果均呈现先增加后降低或趋于稳定的趋势,且对去除效果的影响顺序为:Fe/C>H2O2投加量>溶液p H>反应时间;在固液比为1∶10的条件下,Fe/C(质量比)为1∶1,溶液p H为2.5,反应时间为60 min,H2O2(30%)投加量为12.24 mmol/L时对COD的去除效率最高,可达71.56%;H2O2对铁碳微电解法有显著的加强作用。
In this work,the pharmaceutical wastewater was treated by iron-carbon micro-electrolysis combined with H2O2 of Fenton-like method. The effects of different Fe / C,H2O2 dosages,solution p H and reaction times on COD removal were studied,the optimum conditions were determined through the single factor experiment and orthogonal test,and compared the removal effect with iron carbon micro electrolytic method. The results showed that these factors on COD removal efficiency appear the tendency of increase after the first reduce or stabilizing trend,and the influence of these factors followed the order of Fe ∶ C > H2O2 dosage > solution p H > reaction time. Under the condition of solid-liquid ratio of 1 ∶ 10,the highest removal efficiency of COD could reach up to71. 56% when Fe ∶ C( mass ratio) is 1 ∶ 1,solution p H is 2. 5,the reaction time is 60 min,H2O2( 30%) of the dosage is 12. 24. The strengthening effect of H2O2 for iron-carbon micro-electrolysis is significant.
出处
《环境工程学报》
CAS
CSCD
北大核心
2015年第4期1752-1756,共5页
Chinese Journal of Environmental Engineering
基金
国家"水体污染控制与治理"科技重大专项(2012ZX-07204-001-002)
关键词
制药废水
深度处理
铁碳微电解
类FENTON
pharmaceutical wastewater
advanced treatment
iron-carbon micro-electrolysis
Fenton-like
