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农业部出台《农业部关于促进南方水网地区生猪养殖布局调整优化的指导意见》(农牧发[2015]11号),使规模化生猪养殖重点区域西进、北移。养猪业环境保护提到新高度、新日程。如何促进生猪养殖与环境保护协调发展已然成为现代养猪的重要课题。全国畜禽粪污年产生量约38亿t,综合利用率不到60%,已成为农业污染的主要来源。当前规模化猪场主要采用水泡粪、水冲粪等粪污处理工艺,虽然可以有效保持猪舍内环境清洁,但存在耗水量大、后期污水处理困难
The Ministry of Agriculture promulgated the Guiding Opinions of Ministry of Agriculture on Promoting the Adjustment and Optimization of Pig Breeding Arrangement in the South Water Network (Agro-animal husbandry [2015] No. 11) so that the key areas for large-scale pig breeding will go westward and northward. Pig industry environmental protection refers to a new height, the new agenda. How to promote the coordinated development of pig breeding and environmental protection has become an important issue of modern pig raising. The annual output of livestock and poultry manures is about 3.8 billion tons, and the comprehensive utilization rate is less than 60%. It has become the major source of agricultural pollution. The current large-scale pig farms mainly use effervescent manure, water and other manure excrement disposal process, although pigs can effectively keep the environment clean, but there is a large amount of water consumption, the latter part of the sewage treatment difficulties