化学混凝—Fe^(2+)/NaClO处理石化废水的实验研究  

Study on Chemical Coagulation and Fe^(2+)/NaClO Treating Petrochemical Wastewater

作　　者：尹子洋[1] 颜幼平[1] 姚兴[1] 王勇军[1] 梁睿荣[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广东广州510006

出　　处：《广东化工》2014年第1期5-6,共2页Guangdong Chemical Industry

摘　　要：采用化学混凝-Fe2+/NaClO组合工艺处理石化废水,重点研究了NaClO用量、Fe2+用量、pH及反应时间对Fe2+/NaClO处理化学混凝处理后COD和氨氮去除效果的影响。结果表明:Fe2+/NaClO工艺对COD和氨氮有很好的去除效果,当NaClO用量为8 mL/L,Fe2+用量为224 mg/L,初始pH为6,氧化处理石化废水30 min时,出水的COD和氨氮去除率分别为85.2%和95.6%,出水水质达到《污水综合排放标准》(GB8978-1996)中的一级排放标准。Treating of petrochemical wastewater by chemical coagulation and Fe2＋/NaClO oxidation process was carried out. The effects of dosage of NaCIO, dosage of Fe2＋, initial pH and reaction time on the COD and NH4＋-N removal were studied. The experimental results showed that the Fe2＋/NaCIO oxidation process was a positive role on the removal of the COD and NH4＋-N. When the dosage of NaCIO and Fe2＋ was 8 mL/L and 224 mg/L, initial pH was 6, reaction time was 30 minutes, the removal rate of the COD and NH4＋-N reached 85.2 % and 95.6 %. And the water quality of effluent reached the I-grade demand of the integrated wastewater discharge standard of China（GB/8978-1996）.

关 键 词：化学混凝 亚铁离子 次氯酸钠 石化废水 

分 类 号：X793[环境科学与工程—环境工程]