铁炭微电解/Fenton联合处理榨菜废水

为研究铁炭微电解/Fenton联合处理榨菜废水高COD含量的可行性,通过静态烧杯试验确定铁炭微电解的最佳反应pH、反应时间和铁炭体积比,Fenton的最佳反应时间、H2O2投加量和初始Fe~(2+)浓度。结果表明,铁炭微电解技术最佳条件为pH=3.00、铁炭比1∶1和反应时间30 min,Fenton最佳反应时间120min、H2O2投加量3.5 m L、Fe~(2+)浓度为70 mmol/L。铁炭微电解对废水COD去除率达到39.30%,Fenton技术对废水残留COD去除率为78.54%,两种技术联合处理后榨菜废水COD去除率达到91.03%,对氨氮、Cl~-、色度、SS的去除率分别为70.41%、40.33%、97.35%、57.14%。

Treatment of Mustard Tuber Wastewater by Iron Carbon Micro Electrolysis/Fenton

The feasibility of the iron carbon micro electrolysis/Fenton for treatment of mustard tuber waste water with high content of COD joint were studied, using static jar tests to determine the iron carbon micro electrolysis and the optimum re-action pH,reaction time and the volume ratio of iron to carbon,the best reaction time,H2O2 dosage of Fenton and the initial concentration of Fe2+. The results showed that iron carbon micro electrolysis technology and the best conditions for pH=3.00, iron carbon ratio 1:1 and reaction time 30 min,reaction time 120 min of Fenton,optimal dosage of H2O23.5 mL,Fe2+ concen-tration 70 mmol/L. Iron carbon micro electrolysis to waste water COD removal rate reached 39.30%. Fenton technology on the removal rate of COD was 78.54%. Two technical treatment of mustard tuber waste water COD removal rate reached 91.03%. The removal of ammonia nitrogen,Cl-,chroma,SS rates were 70.41%,40.33%,97.35%,57.14%,respectively.