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Recovery of ammonia from anaerobically digested manure using gas-permeable membranes Scientia Agricola
García-González,Maria Cruz; Vanotti,Matias B.; Szogi,Ariel A..
ABSTRACT Nitrogen (N) can be recovered from different types of wastewaters. Among these wastewaters, anaerobically digested swine manure (digestate) has the highest N content in ammonia form (NH3). It is desirable to reduce N in digestate effluents to safely incorporate them in arable soil in N vulnerable zones (NVZ) and to mitigate NH3 emissions during N land application. Additional benefit is to minimize inhibition of the anaerobic process by removing NH3 during the anaerobic digestion process. This work aimed to apply the gas-permeable membrane technology to evaluate ammonia (NH3) recovery from high-ammonia digested swine manure. Anaerobically digested swine manure with NH4+ content of 4,293 mg N L−1 was reduced by 91 % (to 381 mg N L−1) during the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: N removal; Digestate; Manure management; Membrane technology.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000500434
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Treatment of swine manure: case studies in European’s N-surplus areas Scientia Agricola
García-González,Maria Cruz; Riaño,Berta; Teresa,Marta; Herrero,Eva; Ward,Alastair James; Provolo,Giorgio; Moscatelli,Giuseppe; Piccinini,Sergio; Bonmatí,August; Bernal,María Pilar; Wiśniewska,Hanna; Proniewicz,Marcin.
ABSTRACT In this study, eight different manure treatment plants were monitored. The plants were four on-farm and four centralized treatment plants, all of them at full-scale level. Assessment includes a total of seven pre-treatment and process units as follows: mechanical separation, with and without coagulant and flocculant addition, pasteurization, nitrification-denitrification, anaerobic digestion, and composting. The plants are located in nutrient surplus areas of three European Member States (Spain, Italy and Denmark), the majority of these areas being Nitrate Vulnerable Zones (NVZ). Results presented herein are data collected over a six-month period and comprise performance data of the treatment plants, pathogen indicators (E.coli and Salmonella) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Greenhouse gas reduction; Manure treatment technologies; Anaerobic digestion; Composting; Nitrification-denitrification.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000500444
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