Thermophilic anaerobic digestion of coffee grounds with and without waste activated sludge as co-substrate using a submerged AnMBR: System amendments and membrane performance

•Lack of nitrogen and trace metals caused the failure of coffee grounds digestion.•A long-term operation was established by using sludge as co-substrate.•Additions of NH4HCO3 and trace metals overcame the unstable problem.•Stable operation of membrane was successful with TS in reactor up to 75g/L. C...

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Veröffentlicht in:	Bioresource technology 2013-12, Vol.150, p.249-258
Hauptverfasser:	Qiao, Wei, Takayanagi, Kazuyuki, Shofie, Mohammad, Niu, Qigui, Yu, Han Qing, Li, Yu-You
Format:	Artikel
Sprache:	eng
Schlagworte:	Activated sludge Ammonia - analysis Anaerobic co-digestion Anaerobiosis - drug effects Applied sciences Biodegradation, Environmental - drug effects Biological and medical sciences Biological Oxygen Demand Analysis Biological treatment of sewage sludges and wastes Bioreactors Biotechnology Carbohydrates - analysis Coffee Coffee - chemistry Coffee grounds Degradation Environment and pollution Exact sciences and technology Fatty Acids - analysis Filtration Fundamental and applied biological sciences. Psychology Grounds Industrial applications and implications. Economical aspects Membrane reactor Membranes Membranes, Artificial Pollution Proteins Proteins - analysis Proteolysis - drug effects Refuse Disposal - instrumentation Refuse Disposal - methods Sewage - chemistry Sludge Solubility - drug effects Tannins - pharmacology Temperature Thermophilic Waste Products - analysis Wastes
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