000106686 001__ 106686
000106686 005__ 20230519145439.0
000106686 0247_ $$2doi$$a10.3390/membranes11070538
000106686 0248_ $$2sideral$$a124595
000106686 037__ $$aART-2021-124595
000106686 041__ $$aeng
000106686 100__ $$aSoto Herranz, María
000106686 245__ $$aEffect of acid flow rate, membrane surface area, and capture solution on the effectiveness of suspended GPM systems to recover ammonia
000106686 260__ $$c2021
000106686 5060_ $$aAccess copy available to the general public$$fUnrestricted
000106686 5203_ $$aAmmonia losses from manure pose serious problems for ecosystems and human and animal health. Gas-permeable membranes (GPMs) constitute a promising approach to address the challenge of reducing farm ammonia emissions and to attain the EU’s Clean Air Package goals. In this study, the effect of NH3-N concentration, membrane surface area, acid flux, and type of capture solution on ammonia recovery was investigated for a suspended GPM system through three experiments, in which ammonia was released from a synthetic solution (NH4Cl + NaHCO3 + allylthiourea). The effect of two surface areas (81.7 and 163.4 cm2) was first evaluated using three different synthetic N emitting concentrations (3000, 6000, and 12,000 mg NH3-N∙L−1) and keeping the flow of acidic solution (1N H2SO4) constant (0.8 L·h−1). A direct relationship was found between the amount of NH3 captured and the NH3-N concentration in the N-emitting solution, and between the amount of NH3 captured and the membrane surface area at the two lowest concentrations. Nonetheless, the use of a larger membrane surface barely improved ammonia capture at the highest concentration, pointing to the existence of other limiting factors. Hence, ammonia capture was then studied using different acid flow rates (0.8, 1.3, 1.6, and 2.1 L∙h−1) at a fixed N emitting concentration of 6000 mg NH3-N∙L−1 and a surface area of 122.5 cm2. A higher acid flow rate (0.8–2.1 L∙h−1) resulted in a substantial increase in ammonia absorption, from 165 to 262 mg of NH3∙d−1 over a 14-day period. Taking the parameters that led to the best results in experiments 1 and 2, different types of ammonia capture solutions (H2SO4, water and carbonated water) were finally compared under refrigeration conditions (at 2 °C). A high NH3 recovery (81% in 7 days), comparable to that obtained with the H2SO4 solution (88%), was attained when chilled water was used as the capture solution. The presented results point to the need to carefully optimize the emitter concentration, flow rate, and type of capture solution to maximize the effectiveness of suspended GPM systems, and suggest that chilled water may be used as an alternative to conventional acidic solutions, with associated savings.
000106686 536__ $$9info:eu-repo/grantAgreement/EC/ENV-LIFE 2/000284/EU/Creation of an information structure for urban and environmental planning and management in the municipalities, with a projection to the media
000106686 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000106686 590__ $$a4.562$$b2021
000106686 592__ $$a0.517$$b2021
000106686 594__ $$a3.7$$b2021
000106686 591__ $$aPOLYMER SCIENCE$$b21 / 90 = 0.233$$c2021$$dQ1$$eT1
000106686 593__ $$aProcess Chemistry and Technology$$c2021$$dQ2
000106686 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b132 / 345 = 0.383$$c2021$$dQ2$$eT2
000106686 593__ $$aChemical Engineering (miscellaneous)$$c2021$$dQ2
000106686 591__ $$aCHEMISTRY, PHYSICAL$$b69 / 165 = 0.418$$c2021$$dQ2$$eT2
000106686 591__ $$aENGINEERING, CHEMICAL$$b47 / 143 = 0.329$$c2021$$dQ2$$eT1
000106686 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000106686 700__ $$aSánchez Báscones, Mercedes
000106686 700__ $$aAntolín Rodríguez, Juan Manuel
000106686 700__ $$aVanotti, Matias B.
000106686 700__ $$0(orcid)0000-0003-2713-2786$$aMartín Ramos, Pablo$$uUniversidad de Zaragoza
000106686 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000106686 773__ $$g11, 7 (2021), [12 pp.]$$pMembranes$$tMembranes$$x2077-0375
000106686 8564_ $$s1066079$$uhttps://zaguan.unizar.es/record/106686/files/texto_completo.pdf$$yVersión publicada
000106686 8564_ $$s2724104$$uhttps://zaguan.unizar.es/record/106686/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000106686 909CO $$ooai:zaguan.unizar.es:106686$$particulos$$pdriver
000106686 951__ $$a2023-05-18-14:29:47
000106686 980__ $$aARTICLE