摘要
针对屠宰废水处理厂的扩容改造需求,开展了以反应沉淀一体式矩形环流生物反应器(RPIR)为核心工艺的废水处理系统对屠宰废水进行处理的研究。运行结果显示,新系统对屠宰废水中CODCr、NH3-N、TN和TP的平均去除率分别为94.1%、90.1%、68.4%和85.9%,出水平均质量浓度分别为110.8、16.0、81.5、3.8 mg/L,年削减量分别为970.9、80.6、94.9和13.7 t。新系统出水SS平均质量浓度为17 mg/L。出水CODCr、NH3-N、SS均优于GB 13457—1992《肉类加工工业水污染物排放标准》二级标准。RPIR好氧反应区的SV30在35%~45%之间,MLSS与MLVSS的质量浓度可以维持在6 000、3 650 mg/L左右。新系统中RPIR生化区处理吨水占地面积为0.16 m2。
In view of the extension and renovation requirement of a slaughter wastewater treatment plant, a system with reaction-precipitation integrated rectangular airlift loop bioreactor（RPIR） as the core technology was used to treat slaughter wastewater. The operation results showed that, the average removal rates of CODCr, NH3-N,TN and TP were 94.1%, 90.1%, 68.4% and 85.9% respectively, the average mass concentrations of them were110.8, 16.0, 81.5 and 3.8 mg/L respectively with the annual reduction of 970.9, 80.6, 94.9 and 13.7 t respectively.The average mass concentration of SS in effluent water was 17 mg/L. It could be seen that, the CODCr, NH3-N and SS concentrations of effluent water were all superior to the requirement of grade 2 in GB 13457—1992 Discharge Standard of Water Pollutants for Meat Packing Industry. The SV30 of the RPIR aerobic reaction zone was 35%-45%, the mass concentrations of MLSS and MLVSS could maintained at about 6 000 and 3 650 mg/L respectively. The floor space of RPIR biochemical reaction zone of the said new system for one ton water treatment was 0.16 m2.
作者
刘旭
刘淑杰
段美娟
陈钰
郑进才
钟涛
陈福明
LIU Xu;LIU Shu-jie;DUAN Mei-juan;CHEN Yu;ZHENG Jin-cai;ZHONG Tao;CHEN Fu-ming(Shenzhen Qingyan En,vironmental Technology Co,Ltd,Shenzhen 51805Z China;Researeh Institute of Tsinghua University in Shenzhen,Shenzhen 51805Z China;Long-gang Branch of China Resourees Meat Food Co,Ltd.Shenzhen 518057,China)
出处
《工业用水与废水》
CAS
2018年第4期26-31,共6页
Industrial Water & Wastewater
基金
科技应用示范项目(KJYY20150827155949775)
关键词
反应沉淀一体式矩形环流生物反应器
屠宰废水
环流
硝化作用
反硝化作用
reaction-precipitation integrated rectangular airlift loop reactor
slaughter wastewater
loopcurrent
nitrification
denitrification
