UV-H_2O_2工艺对焦化废水中氰化物深度处理研究  

Advanced treatment of cyanide in coking wastewater by UV-H_2O_2 process

作　　者：黄思远[1,2] 孙贤波[1,2] 钱飞跃[3] 毕凌威 陈波[1,2] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237 [2]国家环境保护化工过程环境风险评价与控制重点实验室,上海200237 [3]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《工业水处理》2014年第12期54-56,共3页Industrial Water Treatment

摘　　要：在新颁布的《炼焦化学工业污染物排放标准》(GB 16171—2012)中,总氰化物的排放限值降至0.2 mg/L,这使得传统除氰工艺已无法满足处理要求。以某焦化厂经生化、混凝处理后的出水为研究对象,探究了UV-H2O2工艺用于深度除氰的可行性。实验结果表明:在p H=10、n(H2O2)∶n(CN)=250∶1的条件下,UV-H2O2工艺处理30 min后总氰去除率可达80%,出水总氰(<0.18 mg/L)满足新标准要求。The newly issued Emission Standard of Pollutants for Coking Chemical Industry （GB 16171—2012） demands that the emission total cyanide value should be reduced to 0.2 mg/L. It is impossible for the traditional cyanide removing process to meet the new treatment requirements. Taking the effluent after biochemical treatment and coagulation as the research target,the feasibility of applying UV-H2O2 process to the advanced cyanide removing has been investigated. Under the following conditions：pH=10,and n （H2O2）∶n （CN）=250∶1,and treatment time of UV-H2O2 process is 30 min, the total cyanide removing rate can reach 80%,and effluent total cyanide is less than 0.18 mg/L,meeting the requirements in the new standard.

关 键 词：焦化废水 UV-H2O2工艺 总氰 

分 类 号：X703.1[环境科学与工程—环境工程]