Fe2O3/H2O2类芬顿法处理阴离子表面活性剂废水的试验

摘要

Fe2O/H2O2, a kind of Fenton-like agent, was used to degrade sodium dodecyl benzene sulfonate (SDBS). Effect of H2O2 concentration, Fe2O3 dosage, pH value and reaction temperature on SDBS degradation was studied. Remits show the degradation of SDBS increases with temperature increasing. The SDBS degradation ratio is high when H2O2/Fe2O3 is 1.568. pH value has unmarked effect on degradation of system. When pH is 2～10, the system maintains high degradation rate. Fenton-like Fe2O3/H2O2 reaction almost has the same efficiency as homogeneous Fenton reaction, while the former has a widely pH range and Fe2O3 can be separated easily and has no secondary pollution.%该文采用Fe2O3/H2O2类芬顿试剂处理阴离子表面活性剂——十二烷基苯磺酸钠(SDBS),研究了H2O2浓度、Fe2O3投加量、pH值及反应温度对处理效果的影响,结果表明SDBS的降解率随温度的升高而升高；当H2O2/Fe2O3=1.568(物质的量比)时体系具有较高的降解率；pH对体系降解率影响不大,在2-10的范围内降解率均较高；Fe2O3/H2O2非均相体系类F.nt.n试剂和Fe2+/H2O2均相体系Fenton试剂的降解效果相差不大,但前者具有pH范围宽,易分离,不产生二次污染的特点.