生猪屠宰废水处理工程实例  

A project example of swine slaughter wastewater treatment

作　　者：刘魁 LIU Kui(Shangqiu Ecological Environment Safety Technology Center,Shangqiu 476000,China)

机构地区：[1]河南省商丘市生态环境安全技术中心,河南商丘476000

出　　处：《工业用水与废水》2024年第4期96-100,共5页Industrial Water & Wastewater

摘　　要：某大型生猪屠宰企业生产废水具有浓度变化大、有机污染物浓度高、悬浮物多等特点,呈红褐色并有明显腥臭味,采用气浮-水解酸化-两级AO-高密度沉淀为主的组合处理工艺,当进水COD、BOD5、SS、氨氮、总磷、总氮质量浓度分别为1844、767、864、54.4、4.52、87.6 mg/L时,出水质量浓度分别为46、21.7、12、3.74、1.75、8.74 mg/L,均符合企业内控要求和GB 13457—1992《肉类加工工业水污染物排放标准》中三级排放标准,达标后的出水进入产业集聚区污水处理厂处理。该处理工艺运行稳定可靠,抗冲击能力强,处理效果好,便于自动化运行操作和维护管理。The production wastewater of a large-scale swine slaughter enterprise has characteristics of large concentration changes,high organic matters concentration,large amount of suspended solids,and so on,which is red-brown and has distinct stench.Using a combined process of air flotation-hydrolytic acidification-two stage AO-high density sedimentation to treat the said kind of wastewater,when the mass concentrations of COD,BOD5,SS,ammonia nitrogen,total phosphorus,and total nitrogen in the influent water were 1844,767,864,54.4,4.52 and 87.6 mg/L respectively,the mass concentrations of the above pollutants in the effluent water were 46,21.7,12,3.74,1.75 and 8.74 mg/L respectively,which showed that the effluent water quality not only satisfied the internal control requirement of the enterprise,but also met the requirement of grade 3 in GB 13457—1992 Discharge standard of water pollutants for meat packing industry,after reaching the standard,the effluent water will be treated by the sewage treatment plant in the industrial agglomeration area.The said process is stable and reliable,and has strong impact resistance,good treatment effect,which is also convenient for automatic operation,maintenance and management.

关 键 词：生猪屠宰企业 屠宰废水 微滤机 高效浅层气浮 水解酸化 两级AO 高密度沉淀池 

分 类 号：X703.1[环境科学与工程—环境工程] X713