畜禽养殖废水处理技术研究  

Research on Livestock and Poultry Breeding Wastewater Treatment Technology

作　　者：张青 张勋 张强 董献彬 孔殿超 张静 Zhang Qing;Zhang Xun;Zhang Qiang;Dong Xianbin;Kong Dianchao;Zhang Jing(Anhui Environmental Technology Group Co.,Ltd.,Hefei 230088,Anhui,China)

机构地区：[1]安徽环境科技集团股份有限公司,安徽合肥230088

出　　处：《绿色科技》2024年第10期132-136,142,共6页Journal of Green Science and Technology

摘　　要：针对畜禽养殖废水开展小试及中试试验,并对氨氮吹脱条件进行优化。氨氮吹脱试验结果表明:氨氮吹脱最理想的pH值为11,气液比为400∶1,吹脱时间宜为1 h,在理想状态吹脱效率达到86.81%。通过畜禽养殖废水开展小试及中试试验,分别检测进出水水质指标,结果表明:畜禽养殖废水小试装置对废水中COD去除率在93%以上、氨氮去除率在92%以上、TP去除率在89%~94%;畜禽养殖废水中试装置对废水中COD的去除率可达到95%以上、氨氮去除率在95%以上,TP去除率在90%以上,整体出水指标均达到排放标准,表明“吹脱+AO生化处理+MBR膜法+化学除磷”工艺可有效的处理畜禽养殖废水。Small-scale and pilot-scale experiments were carried out for livestock and poultry breeding wastewater,with optimization of the ammonia nitrogen stripping conditions.The results of the ammonia nitrogen stripping experiment indicate that the most ideal pH value for ammonia nitrogen stripping is 11,with a gas-to-liquid ratio of 400∶1,and the optimal stripping time should be 1 hour,achieving a stripping efficiency of up to 86.81%under ideal conditions.By carrying out pilot and medium-scale experiments on livestock and poultry breeding wastewater,the water quality indicators of influent and effluent were measured respectively.The research findings show that the small-scale pilot unit for livestock and poultry breeding wastewater can achieve a removal rate of over 93%for COD,over 92%for ammonia nitrogen,and between 89%~94%for TP;the medium-scale pilot unit can achieve a removal rate of over 95%for COD,over 95%for ammonia nitrogen,and over 90%for TP.The overall effluent indicators meet the discharge standards,indicating that the"stripping+AO biochemical treatment+MBR membrane method+chemical phosphorus removal"process can effectively treat livestock and poultry breeding wastewater.

关 键 词：畜禽养殖废水 氨氮吹脱 小试试验 中试试验 

分 类 号：X52[环境科学与工程—环境工程]