RT info:eu-repo/semantics/article
T1 Ammonia Recovery from Digestate Using Gas-Permeable Membranes: A Pilot-Scale Study
A1 Molinuevo Salces, Beatriz
A1 Vanotti, Matias B.
A1 García González, María Cruz
A1 Riaño, Berta
AB The reduction and recovery of nitrogen (N) from anaerobically digested manure (digestate)is desirable to mitigate N-related emissions, mainly ammonia and nitrate, derived from digestateland application in nutrient-saturated zones. This work reports the results of a gas-permeablemembrane (GPM) pilot-scale plant to recover ammonia from digestate in the framework of theEU project Ammonia Trapping. The total ammonia nitrogen (TAN) concentration in digestate wasreduced by 34.2% on average (range 9.4–57.4%). The recovery of TAN in the trapping solution inthe form of a (NH4)2SO4 solution averaged 55.3% of the removed TAN, with a TAN recovery rate of16.2 g N m−2 d−1 (range between 14.5 and 21.0 g Nm−2 d−1). The TAN concentration in the trappingsolution achieved a value of up to 35,000 mg N L−1. The frequent change of the trapping solutionhas been proven as an efficient strategy to improve the overall performance of the GPM technology.
PB MDPI
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/81004
UL https://uvadoc.uva.es/handle/10324/81004
LA eng
NO Riaño, B., Molinuevo-Salces, B., Vanotti, M. B., & García-González, M. C. (2021). Ammonia recovery from digestate using gas-permeable membranes: A pilot-scale study. Environments, 8(12), 133.
NO Producción Científica
DS UVaDOC
RD 23-dic-2025