Methanogenic capacity and robustness of hydrogenotrophic cultures based on closed nutrient recycling via microbial catabolism: Impact of temperature and microbial attachment

Savvas Savvas, Joanne Donnelly, Tim Patterson, Zyh Siong Chong, Sandra R. Esteves

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

35 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

A biological methanation system based on nutrient recycling via mixed culture microbial catabolism was investigated at mesophilic (37 °C) and thermophilic (55 °C) temperatures. At mesophilic temperatures, the formation of biofilms on two different types of material was assessed. Results showed that with intense mixing the biofilm reactors presented methanogenic capacities (per working volume) 50% higher than the ones operated with suspended cultures. Gas feeding rates of 200 L/L/d were achieved at a H2/CO2 to CH4 conversion efficiency of above 90% by linking two reactors in series. Furthermore the robustness of the cultures was assessed under a series of inhibitory conditions that simulated possible process interferences at full scale operation. Full recovery after separate intense oxygenation and long starvation periods was observed within 2–5 days.
Iaith wreiddiolSaesneg
Rhif yr erthyglS0960852418303067
Tudalennau (o-i)164-171
CyfnodolynBioresource Technology
Cyfrol257
Dyddiad ar-lein cynnar24 Chwef 2018
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Meh 2018

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Methanogenic capacity and robustness of hydrogenotrophic cultures based on closed nutrient recycling via microbial catabolism: Impact of temperature and microbial attachment'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn