期刊
CURRENT POLLUTION REPORTS
卷 1, 期 1, 页码 47-56出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s40726-015-0005-1
关键词
Nutrient management; Animal waste; Phosphorus recovery methods; Nitrogen recovery methods; Nutrient pollution; Sustainable intensification
资金
- USDA-ARS Project [6082-13630-005-00D]
For centuries, animal manures have been a traditional source of nutrients in agriculture. However, disposal of animal manure has become an environmental problem in recent times as a result of increased concentration of animal production within small geographic areas. Manure nitrogen (N) and phosphorus (P) applied in excess of the assimilative soil capacity have the potential to reach and pollute water resources through soil leaching or runoff. Yet, conservation and recovery of N and P is a concern in modem agriculture because of the high cost and future limited supply of commercial fertilizers, particularly P which is extracted from mineral deposits. Therefore, N and P recovery methods are necessary to reduce their excess prior to manure soil application and recover them as valuable products. This article is a review of existing technologies for animal waste treatment and additional new methods for recycling manure N and P and possible recovery as valuable byproducts.
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