曼尼托巴省评估猪粪分离技术

       CANADA - The Manitoba Livestock Manure Management Initiative plans to investigate the operating effectiveness and economics of air flotation and belt filter press manure separation technology, writes Bruce Cochrane. The technology uses a multi-step process to separate manure into two streams, a nitrogen- rich liquid stream and a solid stream which typically contains most of the phosphorus. MLMMI executive director John Carney says by separating the two streams producers can use the nitrogen where it's produced and transport the phosphorus from areas high in phosphorus to areas that have a deficit, but this technology tends to be expensive.

　　加拿大——曼尼托巴湖牲畜粪便管理行动计划调查气浮法和带式压滤机分离技术的运作及经济情况,布鲁斯·科克伦(Bruce Cochrane)写道。这项技术使用一个多步骤的过程把粪便分为两流，富氮液流和固体流，固体流通常包含大部分的磷。MLMMI执行董事约翰·卡尼说分开的两流，生产商可以使用生产地的氮气，和高磷地区的磷运输到磷赤字地区,但这种技术往往是代价高昂。