A modeling study on the effects of pH and partial wetting on the removal of ammonia nitrogen from wastewater by membrane contactors

Hydrophobic membranes for ammonia recovery from digestates in microbial electrolysis cells: Assessment of different configurations

“…The obtained results agree with the observations of other studies, which reported an increase in ammonia flux through tubular gas permeable membranes when increasing pH or ammonium concentration of the substrate [25,30,49,69,70].…”

“…Recently, hydrophobic membranes made of polypropylene (PP), polyvinylidene fluoride (PVDF) or polytetrafluoroethylene (PTFE), permeable to gases, are being applied to ammonia recovery, in the form of flat, tubular, or hollow fibre membranes [23][24][25][26]. This technology has been tested in anaerobic digestion [27][28][29][30][31][32] or from raw manure [33][34][35][36][37], among other substrates.…”

“…Great efforts are being made to understand the main parameters involved in ammonia transference through hydrophobic membranes and process modelling [25,31,45,46]. Among the most important issues to be addressed when working with hydrophobic membranes for ammonia recovering are osmotic distillation, pore wetting and membrane fouling.…”

Nitrógeno amoniacal en aguas residuales domesticas utilizando sedimentador primario con diferentes condiciones hidráulicas, marcara 2019

“…Otro parámetro importante es que, para la eliminación de nitrógeno amoniacal de las aguas residuales, se debe tener un control adecuado del pH (Rongwong & Sairiam, 2020).…”