O3/H2O2联用工艺深度处理制浆造纸废水的试验研究

制浆造纸废水对水环境的污染十分严重,对其进行深度处理,势在必行,同时对废水深度处理技术的研究和应用也有着重要的意义。本文采用O3/H2O2工艺深度处理制浆造纸废水,考察了臭氧氧化法以及臭氧和过氧化氢联合工艺对废水COD、色度的去除效果和影响因素。结果表明,采用O3/H2O2联合工艺深度处理制浆造纸废水,效果显著,最终可将废水COD从300 mg.L-1降至95.250 mg.L-1,色度由350倍降至4倍以下,出水浊度小于5 NTU基本达到污水回用标准。

THE EXPERIMENTAL STUDY ON ADVANCED TREATMENT OF PULP AND PAPER WASTEWATER BASED ONOZONE-HYDROGEN PEROXIDE AND COAGULATION

Pulp and paper wastewater was one of the most significant resources of water pollution,it was imperative to have a advanced treatment.Meanwhile to the depth of wastewater treatment technology research and the application may also have important implications.This thesis adopted ozone,ozone-hydrogen peroxide solution and coagulating sedimentation process deep treatment of pulp and paper wastewater,inspecting the influencing factors and the removal effectiveness of wastewater COD,coloring removal by the process of ozone oxidation and ozone-hydrogen process.While water of ozone oxidation flocculation processing,mainly inspect the different type coagulants(PAC,PFS) and coagulant(PAM) combination of wastewater,COD,turbidity removal efficiency of influencing factors.Experimental results proved that the O3 / H2O2 and coagulating sedimentation process had high performance to treatment the pulp and paper wastewater.Eventually will make the COD by 300 mg·L-1 drop to 95.25 mg·L-1,chroma 350 times to reduce by 4 times,turbidity less than 5 NTU,which can achieve sewage reuse criteria.