Counteracting ammonia inhibition in anaerobic digestion by removal with a hollow fiber membrane contactor

Gas-Permeable Membrane Technology Coupled With Anaerobic Digestion for Swine Manure Treatment

“…Moreover, coupling gas-permeable membranes with AD could contribute to reduce potential NH 3 -mediated inhibitions of the acetoclastic methanogenic biomass, which would result in an enhanced methane production. The use of gas-permeable membrane technology in order to counteract the NH 3 inhibition in AD has been minimally studied (Lauterböck et al, 2012(Lauterböck et al, , 2014 and further research is needed. Lauterböck et al (2012) proposed the introduction of a membrane module inside AD reactors.…”

“…The use of gas-permeable membrane technology in order to counteract the NH 3 inhibition in AD has been minimally studied (Lauterböck et al, 2012(Lauterböck et al, , 2014 and further research is needed. Lauterböck et al (2012) proposed the introduction of a membrane module inside AD reactors. They reported acid leakage and low pHs (only 10% of the total TAN was dissociated to free NH 3 ), resulting in low nitrogen recovery rates.…”

Nutrient recovery technologies for anaerobic digestion systems: An overview

“…The difference in the NH 3 partial pressure between the two liquid phases is the driving force for the mass transfer. Hollow fiber membrane contactors have been used to remove NH 3 from anaerobic digestate [109] and also directly from an operating AD reactor [110].…”

Energy self-supply of large abattoir by sustainable waste utilization based on anaerobic mono-digestion

“…Other studies addressed modeling of the process [13,24] or innovative applications such as anaerobic membrane reactors or membrane contactor systems [25][26][27].…”

“…Many researchers suggested co-digestion with other less N-rich substrates, e.g. sewage sludge, food waste or energy crops, as the most promising application [19,[25][26][27][28][29].…”