摘要
采用Fenton氧化工艺深度处理酒精废水,考察了其对COD的去除效果及影响因素,并采用GC/MS手段分析了对有机物的去除机理。结果表明,H2O2投量对COD的去除效果影响最大,其次是Fe2+/H2O2值,再次是pH和反应时间;当pH值为3.0、反应时间为30 min、Fe2+/H2O2=1∶1、H2O2投量为660 mg/L时,对COD的去除效果最佳,去除率高达95%左右。Fenton氧化法可有效地将难降解的大分子有机物氧化分解为小分子有机物;经Fenton试剂处理后,醇类、酮类、酚类和环烃类有机物含量明显减少,而酸类、酯类和醛类有机物含量显著增加。
Fenton oxidation process was used for advanced treatment of wastewater from alcohol industry. The removal efficiency of COD and the influence factors were investigated, and the removal mechanism of organic compounds was analyzed using GC/MS. The results indicate that influence of H2O2 dosage on COD removal is the greatest, the molar ratio of Fe2＋ to H2O2 is the second, pH and reaction time are the smallest. When the pH value is around 3.0, the reaction time is 30 min, the molar ratio of Fe2＋ to H2O2 is 1 ： 1 , and the dosage of H2O2 is 660 mg/L, the removal efficiency of COD is optimal with removal rate of 95%. After treatment with Fenton reagent, the concentrations of alcohol, ketone, phenol and cyclic hydrocarbon organics are decreased, while the concentrations of acid, ester and alde- hyde organics are obviously increased.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第17期51-53,共3页
China Water & Wastewater
关键词
酒精废水
Fenton氧化工艺
深度处理
wastewater from alcohol industry
Fenton oxidation process
advanced treatment
