γ辐照联合H_2O_2处理污泥滤液的研究  

the Treatment Effect ofγ-rays Combined with H_2O_2 on Sludge Filtrate

作　　者：张皓嘉 凌永生[1,2] 贾文宝[1,2] 黑大千[1,2] 单卿[1,2] 

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京211100 [2]江苏省高校放射医学协同创新中心,江苏苏州215123

出　　处：《同位素》2015年第1期20-24,共5页Journal of Isotopes

基　　金：国家自然科学基金(11405086);国家重大科学仪器设备开发专项(2013YQ040861)

摘　　要：采用60 Coγ射线辐照处理污泥滤液,通过对比处理前后化学需氧量(COD)、紫外可见吸光度和浑浊度的变化,研究了辐照处理中初始pH、初始H2O2浓度和吸收剂量对污泥滤液处理效果的影响。结果表明:在相同吸收剂量和初始H2O2浓度条件下,酸性条件更利于CODCr的降低;γ辐照联合H2O2处理存在显著协同效应,吸收剂量为18.75kGy、初始H2O2浓度为2mmol/L时,污泥滤液CODcr去除率达70.4%,浑浊度下降94.9%。The sludge filtrate was performed by ^60Co γ-rays irradiation and additive of hydrogen peroxide （H2O2）. Effects of initial pH, initial H2 02 concentration and radiation dose on irradiation degradation efficiency were studied by analyzing the change of CODCr. UV/V is absorbance and turbidity before and after irradiation. The results indicated that the CODCr was removed more easily at the acidic condition under the same dose and initial H2O2 concentration. Gamma irradiation and H202 had a significant synergistic effect. When the absorbed dose was 18.75 kGy, the initial pH was 2 and the concentration of H2O2 was 2 mmol/L, the removal of CODCr and turbidity was 70. 4% and 94. 9 %, respectively.

关 键 词：Γ辐照 H2O2 污泥滤液 

分 类 号：X703.1[环境科学与工程—环境工程]