宁夏畜禽养殖污水处理技术与模式研究

Study on livestock wastewater treatment technology and mode in Ningxia

结合宁夏规模化畜禽养殖污染现状,提出"源头预防"、"末端治理"和"终端资源利用"相结合的畜禽污染防治模式。针对宁夏冬春季低温畜禽养殖污水处理难以达标的问题,对比分析国内外养殖污水处理工艺。研究表明,在低温条件下,MBR组合工艺能够保持稳定的脱氮效率,受低温影响较小,能够解决宁夏冬春季低温条件运行的难题,并对MBR组合工艺应用提出建议。

Considered the current situation of the domestic livestock industry pollution in Ningxia, a livestock and poultry pollution control model is put forward, which has combined with the concept of ＂the source to prevent＂, ＂the end to governance＂ and ＂the terminal to utilize＂. Aimed at the problem of the low utilization rate of livestock and poultry breeding wastewater in low temperature in winter and spring in Ningxia drought area, the domestic and foreign breeding wastewater treatment process is analyzed and compared. Research showed that in low temperature conditions, MBR combination process could maintain a stable nitrogen removal efficiency with less low temperature effect, which solves the problem of low efficiency in winter in Ningxia. Some recommendations to the application of MBR combination technology are also proposed.