000109124 001__ 109124
000109124 005__ 20230519145422.0
000109124 0247_ $$2doi$$a10.3390/agronomy11122384
000109124 0248_ $$2sideral$$a125304
000109124 037__ $$aART-2021-125304
000109124 041__ $$aeng
000109124 100__ $$aSoto Herranz, María
000109124 245__ $$aReduction of ammonia emissions from laying hen manure in a closed composting process using gas-permeable membrane technology
000109124 260__ $$c2021
000109124 5060_ $$aAccess copy available to the general public$$fUnrestricted
000109124 5203_ $$aNitrogen losses during composting processes lead to emissions problems and reduce the compost fertilizer value. Gas-permeable membranes (GPM) are a promising approach to address the challenge of reducing nitrogen losses in composting processes. This study investigated the applicability of two GPM membrane systems to recover N released during the closed composting process of laying hen manure. The ammonia (NH3) capture process was performed using two different systems over a period of 44 days: the first system (S1) consisted of 120 m of an expanded polytetrafluoroethylene (ePTFE) membrane installed inside a 3.7 m3 portable, closed aerobic composter with forced ventilation; the second system (S2) consisted of 474 m of an ePTFE membrane placed inside as an external module designed for NH3 capture, connected to a closed aerobic composter through a pipe. In both cases, a 1 N H2SO4 acidic NH3 capture solution was circulated inside the membranes at a flow rate of 2.1 L·h−1. The amount of total ammonia nitrogen (TAN) recovered was similar in the two systems (0.61 kg in S1 and 0.65 kg in S2) due to the chosen membrane surface areas, but the TAN recovery rate was six times higher in system S1 (6.9 g TAN·m−2·day−1) than in system S2 (1.9 g TAN·m−2·day−1) due to the presence of a higher NH3 concentration in the air in contact with the membrane. Given that the NH3 concentration in the atmosphere of the membrane compartment directly influences the NH3 capture, better performance of the GPM recovery system may be attained by installing it directly inside the closed aerobic composters. Regardless of the chosen configuration, this technology allows N recovery as a stable and concentrated 1.4% N ammonium salt solution, which can be used for fertigation. The presented GPM systems may be used in community composting systems with low volumes of waste to be treated or in livestock facilities that have implemented best available techniques such as solid–liquid separation or anaerobic digestion, provided that the use of GPM technology in combination with these techniques also contributes to odor mitigation and improves biogas yields
000109124 536__ $$9info:eu-repo/grantAgreement/EUR/LIFE/15 ENV/ES/000284
000109124 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000109124 590__ $$a3.949$$b2021
000109124 592__ $$a0.654$$b2021
000109124 594__ $$a3.9$$b2021
000109124 591__ $$aPLANT SCIENCES$$b55 / 240 = 0.229$$c2021$$dQ1$$eT1
000109124 593__ $$aAgronomy and Crop Science$$c2021$$dQ1
000109124 591__ $$aAGRONOMY$$b18 / 90 = 0.2$$c2021$$dQ1$$eT1
000109124 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000109124 700__ $$aSánchez Báscones, Mercedes
000109124 700__ $$aAntolín Rodríguez, Juan Manuel
000109124 700__ $$0(orcid)0000-0003-2713-2786$$aMartín Ramos, Pablo$$uUniversidad de Zaragoza
000109124 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000109124 773__ $$g11, 12 (2021), 2384 [22 pp.]$$pAgronomy$$tAgronomy$$x2073-4395
000109124 8564_ $$s2749410$$uhttps://zaguan.unizar.es/record/109124/files/texto_completo.pdf$$yVersión publicada
000109124 8564_ $$s2793808$$uhttps://zaguan.unizar.es/record/109124/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000109124 909CO $$ooai:zaguan.unizar.es:109124$$particulos$$pdriver
000109124 951__ $$a2023-05-18-14:08:57
000109124 980__ $$aARTICLE