Sludge is nutrient and mineral rich residue of anaerobic treatment that is often utilized as a fertilizer. Sludge management is crucial to maintain the function of anaerobic treatment lagoons and ensure efficient nutrient utilization. Intensive livestock production has resulted in accumulation of sludge residue in regions where nutrients are in surplus. This situation adversely impacts the sustainability of livestock production. Alternative uses of sludge needs to be developed and adopted to reduce the negative impacts associated with the nutrients accumulation on farms and nearby crop fields. A thorough understanding of sludge composition is necessary to identify appropriate end use. This review explores swine lagoon sludge (SLS) in relation to its composition, sampling techniques, management approaches, fertilizer value, challenges and opportunities for further development.

污泥是厌氧处理中营养和矿物质丰富的残留物，通常用作肥料。污泥管理对于维持厌氧处理池的功能和确保有效的养分利用至关重要。集约化畜牧生产导致养分过剩的地区出现了污泥残留物的积累。这种情况对畜牧生产的可持续性产生不利影响。需要开发和采用污泥的替代用途，以减少与养分积累对农场和附近农田的负面影响。要确定合适的最终用途，必须对污泥成分有透彻的了解。这篇评论探讨了猪泻湖污泥（SLS）的组成，采样技术，管理方法，肥料价值，