TY - JOUR
T1 - Recovery of nitrogen and water from landfill leachate by a microbial electrolysis cell-forward osmosis system
AU - Qin, Mohan
AU - Molitor, Hannah
AU - Brazil, Brian
AU - Novak, John T.
AU - He, Zhen
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - A microbial electrolysis cell (MEC)-forward osmosis (FO) system was previously reported for recovering ammonium and water from synthetic solutions, and here it has been advanced with treating landfill leachate. In the MEC, 65.7±9.1% of ammonium could be recovered in the presence of cathode aeration. Without aeration, the MEC could remove 54.1±10.9% of ammonium from the leachate, but little ammonia was recovered. With 2M NH4HCO3 as the draw solution, the FO process achieved 51% water recovery from the MEC anode effluent in 3.5-h operation, higher than that from the raw leachate. The recovered ammonia was used as a draw solute in the FO for successful water recovery from the treated leachate. Despite the challenges with treating returning solution from the FO, this MEC-FO system has demonstrated the potential for resource recovery from wastes, and provide a new solution for sustainable leachate management.
AB - A microbial electrolysis cell (MEC)-forward osmosis (FO) system was previously reported for recovering ammonium and water from synthetic solutions, and here it has been advanced with treating landfill leachate. In the MEC, 65.7±9.1% of ammonium could be recovered in the presence of cathode aeration. Without aeration, the MEC could remove 54.1±10.9% of ammonium from the leachate, but little ammonia was recovered. With 2M NH4HCO3 as the draw solution, the FO process achieved 51% water recovery from the MEC anode effluent in 3.5-h operation, higher than that from the raw leachate. The recovered ammonia was used as a draw solute in the FO for successful water recovery from the treated leachate. Despite the challenges with treating returning solution from the FO, this MEC-FO system has demonstrated the potential for resource recovery from wastes, and provide a new solution for sustainable leachate management.
KW - Ammonium bicarbonate
KW - Ammonium recovery
KW - Forward osmosis
KW - Landfill leachate
KW - Microbial electrolysis cells
UR - https://www.scopus.com/pages/publications/84945400086
U2 - 10.1016/j.biortech.2015.10.066
DO - 10.1016/j.biortech.2015.10.066
M3 - Article
C2 - 26519701
AN - SCOPUS:84945400086
SN - 0960-8524
VL - 200
SP - 485
EP - 492
JO - Bioresource Technology
JF - Bioresource Technology
ER -