针对养猪废水猪粪多及有机物浓度高等特点,以辽宁省昌图县某养猪场废水处理工程为实例,采用具有沼气燃烧加热废水和多级猪粪收集装置的ABR-接触氧化-SBR组合工艺完成养猪废水处理工艺的低温启动与运行。结果表明,在平均进水COD为6 000 mg/L,BOD_5为3 500 mg/L,SS质量浓度为5 000 mg/L,氨氮质量浓度为700mg/L的冬季运行阶段,稳定后平均出水COD为145 mg/L,BOD_5为20 mg/L,SS质量浓度为30 mg/L,氨氮质量浓度为21 mg/L,去除率分别高达97.58%、99.43%、99.40%和97.00%。该组合工艺出水可满足DB 21/1627-2008排入城镇污水处理厂收集管网系统的标准。 Aiming at the characteristics of swine manure and high concentration of organic compounds in swine wastewater, a wastewater treatment project of a pig farm in Changtu County, Liaoning Province was taken as an example. The ABR-contact oxidation-SBR combination with biogas combustion heating wastewater and multi-stage pig manure collecting device Process to complete the pig waste water treatment process start and run at low temperature. The results showed that when the average influent COD was 6 000 mg / L, the BOD 5 was 3500 mg / L, the SS concentration was 5 000 mg / L and the ammonia nitrogen concentration was 700 mg / L, the average effluent COD The results showed that the removal efficiencies were 97.58%, 99.43%, 99.40% and 97.00% for 145 mg / L, 20 mg / L BOD_5, 30 mg / L SS and 21 mg / L ammonia nitrogen respectively. This combined process effluent meets the criteria for discharge into the urban sewage collection network of the DB 21 / 1627-2008.