Sludge management in anaerobic swine lagoons: A review

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:271

Review

Owusu-Twum, Maxwell Y.¹  Sharara, Mahmoud A.¹ 

[1] North Carolina State Univ, Dept Biol & Agr Engn, 3100 Faucette Dr, Raleigh, NC 27695 USA

关键词: Sludge management;    Anaerobic lagoon;    Composition;    Swine production;    Sampling techniques;   

DOI  :  10.1016/j.jenvman.2020.110949

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free