Effect of hydraulic retention time on inorganic nutrient recovery and biodegradable organics removal in a biofilm reactor treating plant biomass leachate

KRUMINS, Valdis ; HUMMERICK, Mary ; et al.

In: Bioresource technology, Jg. 85 (2002), Heft 3, S. 243-248

academicJournal - print, 9 ref

A fixed-film (biofilm) reactor was designed and its performance was determined at various retention times. The goal was to find the optimal retention time for recycling plant nutrients in an advanced life support system, to minimize the size, mass, and volume (hold-up) of a production model. The prototype reactor was tested with aqueous leachate from wheat crop residue at 24, 12, 6, and 3 h hydraulic retention times (HRTs). Biochemical oxygen demand (BOD), nitrates and other plant nutrients, carbohydrates, total phenolics, and microbial counts were monitored to characterize reactor performance. BOD removal decreased significantly from 92% at the 24 h HRT to 73% at 3 h. Removal of phenolics was 62% at the 24 h retention time, but 37% at 3 h. Dissolved oxygen concentrations, nitric acid consumption, and calcium and magnesium removals were also affected by HRT. Carbohydrate removals, carbon dioxide (CO2) productions, denitrification, potassium concentrations, and microbial counts were not affected by different retention times. A 6 h HRT will be used in future studies to determine the suitability of the bioreactor effluent for hydroponic plant production.

Titel:	Effect of hydraulic retention time on inorganic nutrient recovery and biodegradable organics removal in a biofilm reactor treating plant biomass leachate
Autor/in / Beteiligte Person:	KRUMINS, Valdis ; HUMMERICK, Mary ; LEVINE, Lanfang ; STRAYER, Richard ; ADAMS, Jennifer L ; BAUER, Jan
Link:	E-Journal im Bestand der UB Hagen? View record from PASCAL Archive
Zeitschrift:	Bioresource technology, Jg. 85 (2002), Heft 3, S. 243-248
Veröffentlichung:	Oxford: Elsevier Science, 2002
Medientyp:	academicJournal
Umfang:	print, 9 ref
ISSN:	0960-8524 (print)
Schlagwort:	Agronomy, agriculture, phytopathology Agronomie, agriculture, phytopathologie Food science technology Sciences technologies alimentaires Biotechnology Biotechnologies Energy Énergie Pollution Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Biotechnologie Applications et implications industrielles. Aspects économiques Industrial applications and implications. Economical aspects Environnement et pollution Environment and pollution Traitement biologique des boues résiduaires et des déchets Biological treatment of sewage sludges and wastes Technique spatiale Space technology Técnica espacial Traitement biologique Biological treatment Tratamiento biológico Analyse entrée sortie Input output analysis Análisis entrada salida Aérobiose Aerobiosis Biofilm Biomasse Biomass Biomasa Bioréacteur Bioreactor Biorreactor Composé organique Organic compounds Compuesto orgánico Culture hydroponique Hydroponic cultivation Cultivo hidropónico DBO Biological oxygen demand Déchet végétal Vegetal waste Desperdicio vegetal Dégradation biologique Biodegradation Degradación biológica Lessivat Leachate Lixiviado Nutriment Nutrient Nutriente Oxygène dissous Dissolved oxygen Oxígeno disuelto Phénols Phenols Fenoles Prototype Prototipo Recyclage Recycling Reconversión Temps rétention Retention time Tiempo retención Equipement vie Life support system
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Dynamac Corporation, Mail code DYN-3, Kennedy Space Center, FL 32899, United States Rights: Copyright 2002 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Biotechnology

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