期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 271, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2020.110949
关键词
Sludge management; Anaerobic lagoon; Composition; Swine production; Sampling techniques
资金
- U.S. Department of Agriculture [2019-68008-29894]
- North Carolina Department of Agriculture and Consumer Services - Bioenergy Research Initiative awards (NCDACS - BRI) [2019-566334]
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.
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