Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field
Cattle concentrated animal feeding operations (feedlots), whose number has grown considerably in the last years, generate large volumes of wastewaters with a high organic load. The wastewaters are formed by rainfall-runoff of the accumulated manure and may contain hormones and antibiotics, which ham...
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doaj-2c1863d3932d4e868e0f990810346dac2021-01-05T09:22:15ZengElsevierHeliyon2405-84402020-12-01612e05840Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the fieldSantiago N. Fleite0Ana R. García1Christian De los Santos2Leandro L. Missoni3Rocío Torres4M. Gabriela Lagorio5Miryan Cassanello6Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Dpto. Industrias, LARSI, Ciudad Universitaria, C1428BGA, Buenos Aires, Argentina; Cátedra de Química Inorgánica y Analítica, Facultad de Agronomía, Universidad de Buenos Aires, ArgentinaCátedra de Química Inorgánica y Analítica, Facultad de Agronomía, Universidad de Buenos Aires, ArgentinaCátedra de Química Inorgánica y Analítica, Facultad de Agronomía, Universidad de Buenos Aires, ArgentinaCONICET, Universidad de Buenos Aires, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Dpto. de Química Inorgánica, Analítica y Química Física, Ciudad Universitaria. Pabellón II, 1er piso, C1428EHA, Buenos Aires, ArgentinaCONICET, Universidad de Buenos Aires, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Buenos Aires, ArgentinaCONICET, Universidad de Buenos Aires, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Dpto. de Química Inorgánica, Analítica y Química Física, Ciudad Universitaria. Pabellón II, 1er piso, C1428EHA, Buenos Aires, ArgentinaUniversidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Dpto. Industrias, LARSI, Ciudad Universitaria, C1428BGA, Buenos Aires, Argentina; CONICET, Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ), Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina; Corresponding author.Cattle concentrated animal feeding operations (feedlots), whose number has grown considerably in the last years, generate large volumes of wastewaters with a high organic load. The wastewaters are formed by rainfall-runoff of the accumulated manure and may contain hormones and antibiotics, which hampers the use of biological treatments. In this work, the feasibility of continuous separation of the suspended colloidal organic matter and nutrients to clarify the liquid and recover the solid is studied. A flocculation sedimentation system using a decentralized lamella settler is proposed, optimized and further tested in the field. Computational fluid dynamic (CFD) simulation is used to analyze the motion of the liquid and suspended inertial particles representing the formed flocs, for optimizing the settler. The simulations helped in the design of the bench-scale unit tested in the field. The clarified liquid was characterized to analyze its use for fertigation. The proposed treatment allowed excellent removal of organic matter (~98% chemical oxygen demand, and almost complete turbidity) and phosphorus (~95%). Organic nitrogen was partially removed (~70%) and ammonia nitrogen mostly remained in the liquid. Spectral characterization of the clarified liquid suggests that the remaining organic nitrogen is related to soluble protein-like compounds.http://www.sciencedirect.com/science/article/pii/S2405844020326827Cattle feedlot wastewater treatmentLamella settlerParticle settlingEffluent characterizationCFD optimizationFeedlot effluent spectral analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Santiago N. Fleite Ana R. García Christian De los Santos Leandro L. Missoni Rocío Torres M. Gabriela Lagorio Miryan Cassanello |
spellingShingle |
Santiago N. Fleite Ana R. García Christian De los Santos Leandro L. Missoni Rocío Torres M. Gabriela Lagorio Miryan Cassanello Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field Heliyon Cattle feedlot wastewater treatment Lamella settler Particle settling Effluent characterization CFD optimization Feedlot effluent spectral analysis |
author_facet |
Santiago N. Fleite Ana R. García Christian De los Santos Leandro L. Missoni Rocío Torres M. Gabriela Lagorio Miryan Cassanello |
author_sort |
Santiago N. Fleite |
title |
Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field |
title_short |
Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field |
title_full |
Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field |
title_fullStr |
Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field |
title_full_unstemmed |
Simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. Experimental validation in the field |
title_sort |
simulation and optimization of a lamella settler for cattle feedlot wastewater treatment and nutrients recovery. experimental validation in the field |
publisher |
Elsevier |
series |
Heliyon |
issn |
2405-8440 |
publishDate |
2020-12-01 |
description |
Cattle concentrated animal feeding operations (feedlots), whose number has grown considerably in the last years, generate large volumes of wastewaters with a high organic load. The wastewaters are formed by rainfall-runoff of the accumulated manure and may contain hormones and antibiotics, which hampers the use of biological treatments. In this work, the feasibility of continuous separation of the suspended colloidal organic matter and nutrients to clarify the liquid and recover the solid is studied. A flocculation sedimentation system using a decentralized lamella settler is proposed, optimized and further tested in the field. Computational fluid dynamic (CFD) simulation is used to analyze the motion of the liquid and suspended inertial particles representing the formed flocs, for optimizing the settler. The simulations helped in the design of the bench-scale unit tested in the field. The clarified liquid was characterized to analyze its use for fertigation. The proposed treatment allowed excellent removal of organic matter (~98% chemical oxygen demand, and almost complete turbidity) and phosphorus (~95%). Organic nitrogen was partially removed (~70%) and ammonia nitrogen mostly remained in the liquid. Spectral characterization of the clarified liquid suggests that the remaining organic nitrogen is related to soluble protein-like compounds. |
topic |
Cattle feedlot wastewater treatment Lamella settler Particle settling Effluent characterization CFD optimization Feedlot effluent spectral analysis |
url |
http://www.sciencedirect.com/science/article/pii/S2405844020326827 |
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