西北地区养猪场污水处理技术应用研究

Study on the Application of Sewage Treatment Techniques of Livestock Farms in Northwest China

针对中国西北高纬度寒冷地区养猪场污水粪便处理的特点,选用"固液分离—UASB—混凝沉淀—SBR—吸附过滤"工艺技术处理污水,并运用良好的加温保温措施保证工程能够正常运行。经过4个月的启动调试,项目达到正常运行状态,应用效果良好。经过对处理后的污水各项指标进行检测,出水CODcr、BOD5、SS、NH4-N及T-P指标均能达到《畜禽养殖业污水排放标准(GB18596-2001)》的要求。

Based on the sewage treatment features of livestock farms in the extremely cold northwest region at high attitudes of China, a method called ＂solid liquid separation-UASB-coagulation and sedimentation SBR absorption and filtration＂ was adopted to treat piggery wastewater. Moreover, the heating insulation measures were used to ensure that the operation of the project being normal. This project was started successfully after four months＇ star-up process, and it works very well. The results showed that after the sewage treatment, the indices of CODcr, BOD5, SS, NH4-N and T-P meet the requirements of discharge standard of pollutants for livestock and poultry breeding （GB18596-2001）.