皮革加工企业废水提标改造工程实例  

An Example of Tannery Wastewater Treatment Upgrading Project

作　　者：朱召军 陈涛 范安亿 王元东 刘博 ZHU Zhao-jun;CHEN Tao;FAN An-yi;WANG Yuan-dong;LIU Bo(Henan Zhengda Environmental Technology&Consulting Co.Ltd.,Zhengzhou 450000,China;Zhengzhou University Environmental Technology Consulting Engineering Co.Ltd.,Zhengzhou 450000,China)

机构地区：[1]河南省正大环境科技咨询工程有限公司,河南郑州450000 [2]郑州大学环境技术咨询工程有限公司,河南郑州450000

出　　处：《中国给水排水》2023年第10期144-149,共6页China Water & Wastewater

摘　　要：河南某皮革加工企业废水处理工程设计规模为1×104m3/d,采用初沉+物化反应沉淀+ABR+A/O氧化沟组合处理工艺。由于废水水质和执行排放标准的变化(由间接排放变为直接排放),需对原有工艺进行改造。高磷废水增加Fenton氧化预处理工艺;含硫、脱脂废水增加A/O工艺,强化脱氮;末端采用两级Fenton氧化深度处理工艺。连续1年的运行结果表明,即使进水水质波动较大,改造后的深度处理工艺对COD、TP、NH3-N及TN的平均去除率分别达到89.0%、94.4%、28.4%、23.3%,出水主要指标可达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。该工程改造投资为5700万元,综合运行费用为9.4元/m3。The design capacity of a tannery wastewater treatment project in Henan Province is 1×10^(4)m^(3)/d,and the combined process of primary sedimentation,physicochemical reaction sedimentation,anaerobic baffled reactor,and oxidation ditch was used.Due to the change of wastewater quality and discharge standard from indirect emissions to direct emissions,the original treatment process needs to be transformed.The pretreatment of Fenton oxidation is added for high phosphorus wastewater,the anoxic/aerobic process and enhanced nitrogen removal are added for wastewater containing sulfur and degreasing,and two-stage Fenton oxidation advanced treatment process are added at the end.The operation results of a year indicate that even if the influent quality fluctuated greatly,the average removal rates of COD,TP,NH_(3)-N and TN by the modified advanced treatment process reached 89.0%,94.4%,28.4%,23.3%,respectively,and the main indicators of effluent could reach the first level A criteria of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).The investment of renovation is 57 million yuan,and the comprehensive operating cost is 9.4 yuan/m^(3).

关 键 词：皮革废水 提标改造 FENTON氧化 

分 类 号：TU992[建筑科学—市政工程]