Methods of ammonia removal in anaerobic digestion : a review

The anaerobic digestion of substrates with high ammonia content has always been a bottleneck in the methanisation process of biomasses. Since microbial communities in anaerobic digesters are sensitive to free ammonia at certain conditions, the digestion of nitrogen-rich substrates such as livestock...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 76(2017), 7-8 vom: 18. Okt., Seite 1925-1938
1. Verfasser: Krakat, Niclas (VerfasserIn)
Weitere Verfasser: Demirel, Burak, Anjum, Reshma, Dietz, Donna
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Ammonia 7664-41-7 Nitrogen N762921K75 Methane OP0UW79H66
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520 |a The anaerobic digestion of substrates with high ammonia content has always been a bottleneck in the methanisation process of biomasses. Since microbial communities in anaerobic digesters are sensitive to free ammonia at certain conditions, the digestion of nitrogen-rich substrates such as livestock wastes may result in inhibition/toxicity eventually leading to process failures, unless appropriate engineering precautions are taken. There are many different options reported in literature to remove ammonia from anaerobic digesters to achieve a safe and stable process so that along with high methane yields, a good quality of effluents can also be obtained. Conventional techniques to remove ammonia include physical/chemical methods, immobilization and adaptation of microorganisms, while novel methods include ultrasonication, microwave, hollow fiber membranes and microbial fuel cell applications. This paper discusses conventional and novel methods of ammonia removal from anaerobic digesters using nitrogen-rich substrates, with particular focus on recent literature available about this topic 
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700 1 |a Demirel, Burak  |e verfasserin  |4 aut 
700 1 |a Anjum, Reshma  |e verfasserin  |4 aut 
700 1 |a Dietz, Donna  |e verfasserin  |4 aut 
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