UV/H_2O_2/草酸铁络合物体系处理聚糖木质素钻井废液条件研究  

The conditions of treating chitosan-lignin waste drilling fluid by UV /H_2O_2/ ferric oxalate complex system

作　　者：秦芳玲[1] 樊月[1] 王倩[2] 陈刚[1] 张洁[1] 

机构地区：[1]西安石油大学化学化工学院/陕西省油气田环境污染与储层保护重点实验室,陕西西安710065 [2]湖南石油化工职业技术学院,湖南岳阳414000

出　　处：《西北大学学报（自然科学版）》2015年第6期893-898,共6页Journal of Northwest University（Natural Science Edition）

基　　金：陕西省教育厅专项科研计划基金资助项目(11JK0755)

摘　　要：在正交、单因素实验基础上,以H_2O_2投加量、H_2O_2/FeSO_4物质的量比及FeSO_4/K_2C_2O_4物质的量比为自变量,COD_(Cr)去除率为响应量,利用Box-Behnken实验设计对UV/H_2O_2/草酸铁体系去除聚糖-木质素钻井液废液COD的条件进行优化。结果表明:在优化实验条件H_2O_2加量0.75%(体积分数),H_2O_2/FeSO_4物质的量比为3.0∶1,FeSO_4/K_2C_2O_4物质的量比为2.5∶1下,经UV/H_2O_2/草酸铁体系处理后聚糖-木质素钻井液废液的COD_(Cr)去除率为70.51%,与预测值72.08%接近。On the basis of orthogonal and single factor experiments, dosage of H2O2, the molar ratio of H2O2/ FeSO4 and FeSO4/K2C2O4 were independent variables, and the removal rate of CODcr was response to a quan- tity, Box-Behnken experimental design was used to optimize the conditions of removing CODcr of chitosan-lig- nin drilling fluid by uv/nEOE/ferric oxalate complex system. The results show that when dosage of HEO2Was 0. 75%, the molar ratio of H2O2/FeSO4 was 3.0, and the molar ratio of FeS0JK2C2O4 was under 2. 5, the removal rate of CODcr was up to 70. 51% after the complex system of UV/HEO2/ferric oxalate treating the chi- tosan-lignin waste drilling fluid. Meanwhile, the real removal rate of CODcr was close to the predictive value of 72. 08%

关 键 词：钻井液废液 UV/H2O2/草酸铁络合物体系 响应面法 CODCR去除率 

分 类 号：TE991[石油与天然气工程—石油机械设备]