Journal
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
Volume 45, Issue 14, Pages 1469-1521Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10643389.2014.955630
Keywords
physicochemical treatment; slurry; biofertilizers; ammonia recovery; membrane technology
Categories
Funding
- Danish Agency for Science, Technology and Innovation
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Excessive livestock production in small areas poses a risk of nitrogen release to the environment and thus air and water contamination. Recovery of ammonia is necessary to avoid overfertilization, but manure management of untreated slurry is costly and complex. The authors discuss ammonium fertilizer recovery from manure using membrane processes and physicochemical methods including technology and energy assessments. Currently, nanofiltration, reverse osmosis, membrane distillation combined with ultrafiltration, and air stripping are the best choices. The processes rely highly on selection of appropriate pretreatment, as residual particulates will lead to fouling of membranes and stripping towers hence affect the performance greatly.
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