摘要
采用US/Fenton氧化—混凝法对高浓度焦化废水进行预处理。考察了对处理效果的影响因素,确定了最适工艺条件。结果表明,在超声波功率500 W,H2O2投加质量浓度为6.0 g/L,Fe2+为400 mg/L,pH 3,Al2(SO4)3、PAM投加量分别为480、4.0 mg/L的条件下,COD、NH3-N、CN-和色度的去除率分别达75.1%、53.4%、62.8%和83.1%,废水的COD由处理前的4 799 mg/L降至1 195 mg/L,BOD/COD由0.196提高到0.373,出水可生化性良好。US/Fenton氧化—混凝法可作为高浓度焦化废水的一种有效的预处理方法。
US/Fenton oxidation- coagulation process has been employed to pretreat highly concentrated coking when the US power is 500 W, H2O2 concentration is 6.0 g/L, Fe^2＋ dosage is 400 mg/L, pH is 3, Al2（SO4）3 dosage is 480 mg/L and PAM concentration is 4.0 mg/L, the removal efficiency of COD, NH3-N, CN^-and chroma axe 75.1%, 53.4%, 62.8% and 83.1%, respectively. COD decreases from 4 799 mg/L to 1195 mg/L, and BOD/COD ratio increases from 0.196 to 0.373 altogether. The effluent from US/Fenton oxidation- coagulation process can be disposed by biological treatment. US/Fenton oxidation-coagulation process is a valid pretreatment method for highly concentrated coking wastewater.
出处
《工业水处理》
CAS
CSCD
北大核心
2006年第6期17-20,共4页
Industrial Water Treatment
基金
江苏省博士后资助招收项目(1660631094)
江苏科技大学科研基金项目(E2003616)
