摘要
采用UV/O3/Fe2+工艺去除垃圾渗滤液膜滤浓缩液混凝出水中的COD,考察O3加入量、初始溶液p H、催化剂投加量、紫外光强度、反应时间等因素对废水处理效果的影响,确定适宜的工艺条件。实验结果表明,在O3氧化体系中UV和催化剂Fe2+的引入有利于浓缩液中有机物的降解。在臭氧加入量为1.3 g/h·L,Fe2+的投加量为80 mg/L,p H为3.0,紫外光强度为36W,反应时间为60 min的条件下,UV/O3/Fe2+体系对废水中COD的去除率可达79.96%,比单独的O3体系、UV/O3体系、O3/Fe2+体系分别提高44.43%、35.9%、18.75%。
O3/UV/Fe^2＋ process was used to remove the COD of the effluent from concentrate reject stream pretreated by coagulation process. The effects of ozone dosage, pH value of initial solution, catalyst dosage reaction time and the power and of UV irradiation on the removal rate of COD were also investigated in order to obtain the best craft condition. It shows that the addition of UV and Fe^2 ＋ in O3 system can increase the removal efficiency of COD. The removal efficiency of COD in the Fe2 ＋/UV/O3 system can reach 79.9% under the condition of ozone dosage 1.3 g · h^-1 · L^-1 , Fe^2＋ dosage 80 mg/L, the pH value of initial solution 3, ultraviolet（UV） power 36W and the reaction time 1h. It make an increase of 44.43% ,35.9% and 18.75% respectively for 03 , UV/O3 , and O3/Fe^2＋ system.
出处
《环境科学与管理》
CAS
2014年第11期91-95,共5页
Environmental Science and Management
