摘要
规模化养殖场及其周边环境问题,成为制约养殖业进一步发展的主要因素之一。针对养猪场废水CODCr、SS、NH3-N浓度高和水质水量波动大等特点,本工程采用“固液分离+厌氧工艺+二级A/O工艺+混凝沉淀+曝气生物滤池”组合工艺处理江西某规模化养猪场废水。经过稳定运行,最终尾水CODCr、NH3-N、TP的排放质量浓度范围分别为114~142、2~16、2.0~5.6 mg/L,达到GB 5084—2021《农田灌溉水质标准》和GB 18596—2001《畜禽养殖业污染物排放标准》的较严值,废水处理运行成本约为3.46元/t。运行结果表明,该工艺具有耐进水负荷冲击、出水水质稳定、运行成本低等特点。
The problem of large-scale livestock farms and their surrounding environment has become one of the main factors restricting the further development of livestock and poultry breeding industry.In view of the characteristics of high CODCr,SS,NH3-N concentrations and large fluctuations in water quality and quantity in pig farm wastewater,this project adopts a combination process of"solid-liquid separation+anaerobic process+two stage A/O process+coagulation sedimentation+BAF"to treat wastewater from a large-scale pig farm in Jiangxi.After stable operation,the final discharge concentration ranges of CODCr,NH3-N and TP in the tail water are 114-142,2-16 and 2.0-5.6 mg/L respectively,which meet the stricter values of the GB 5084—2021"Irrigation Water Quality Standard for Farmland"and GB 18596—2001"Pollutant Discharge Standard for Livestock and Poultry Industry".The operating cost of wastewater treatment is about 3.46 yuan/t.The operation results indicate that the process has characteristics such as resistance to influent load impact,stable effluent quality and low operating cost.
作者
田先锋
刘晓荣
TIAN Xianfeng;LIU Xiaorong(Jiangxi Runyang Environmental Protection Technology Co.,Ltd.,Nanchang 330029,China)
出处
《能源研究与管理》
2023年第3期91-95,101,共6页
Energy Research and Management
关键词
规模化养猪场
二级A/O工艺
曝气生物滤池
废水处理工程
large-scale pig farm
two stage A/O process
biological aerated filter(BAF)
wastewater treatment engineering
作者简介
第一作者:田先锋(1968-),男,工程师,本科,主要研究方向为水污染治理工程。E-mail:1164313865@qq.com。
