作　　者： ; ;

机构地区： 中国环境管理干部学院

出　　处： 《水处理技术》 2012年第11期123-125,共3页

摘　　要： 河北省某炼焦制气有限公司焦化废水治理工程先采用化学法降低焦化废水中氰、氨氮,然后与生活污水混合进入生化系统,生化系统采用水解酸化-缺氧-好氧工艺降解有机物,最后采用混凝沉淀工艺进行深度处理。运行结果表明,系统运行稳定,处理出水COD≤135 mg/L,ρ(NH3-N)≤15 mg/L,ρ(酚)≤0.5 mg/L,ρ(硫化物)≤1 mg/L,ρ(氰化物)≤0.5 mg/L,ρ(SS)≤51 mg/L,ρ(石油类)≤0.5 mg/L,pH=6～9。处理出水达到钢铁工业水污染物排放标准(GB13456-92)二级标准。环境效益和社会效益明显。 The paper introduced the engineering example of coking wastewater treatment for an Coking Coal Co.Ltd in Hebei Province.The engineering decreased the cyanide and ammonia nitrogen of coking wastewater by chemical method,and then the coking wastewater entered the biochemical system,the process of biochemical system was hydrolytic acidification,anoxic and oxidation.At last,the coking wastewater treated by coagulation sedimentation.The running results showed that the process had stable treatment efficiency.The COD,NH3-N,phenol,sulfide,cyanide,SS and petroleum in the treated effluent were less than or equal to 135 mg/L,15 mg/L,0.5 mg/L,1 mg/L,0.5 mg/L,51 mg/L,0.5 mg/L,respectively,pH=6～9.The effluent quality met the criteria in the discharge standard of water pollutants for iron and steel industry（GB13456-92）.The engineering had obvious environmental benefit and social benefit.

关 键 词： 焦化废水 催化脱氮 工程实例

领　　域： [环境科学与工程]