摘要
针对鞍钢股份有限公司鲅鱼圈钢铁分公司焦化废水A2/O生物系统处理后出水COD、总氰及氨氮仍很难达标,生物处理段处理效果不好等问题,对臭氧催化氧化及电絮凝焦化废水深度处理工艺进行了研究。工业实践表明,将原A2/O生物系统出水经臭氧催化氧化深度处理后,COD和总氰化物去除率分别达到66%和84%,出水指标达到设计要求,环境效益显著。
The advanced treatment processes for coking wastewater based on the catalytic ozonation method and the electric coagulation method were studied with regard to the problems that the content of COD, total cyanide and ammonia nitrogen in effluent water obtained by the A^2/O biological treatment system for coking wastewater in Bayuquan Iron ＆Steel Subsidiary Company of Angang Steel Co., Ltd. was far away from meeting the standard values and the treatment efficiency in biological treatment stage was not favorable. The practice shows that the removal rates of COD and total cyanide of effluent water which was obtained by the A^2/O biological treatment system retreated by the advanced treatment process based on catalytic ozonation method were improved to 66% and 84% respectively and therefore indexes of effluent water can meet the values required by design standards while the environmental benefits are remarkable.
出处
《鞍钢技术》
CAS
2015年第4期32-35,共4页
Angang Technology
关键词
焦化废水
臭氧催化氧化
深度处理
coking wastewater
ozone catalytic oxidation
advanced treatment process
