Microbial removal from the separated liquid fraction of anaerobically digested pig manure in meso-scale integrated constructed wetlands

Microbial removal from the separated liquid fraction of anaerobically digested pig manure in meso-scale integrated constructed wetlands

► Microbial removal from liquid fraction of manure examined in meso-scale ICW’s. ► Salmonella undetectable in influent and Escherichia coli and Enterococcus rarely detected. ► Flow through cells reduced coliform, yeasts and moulds and spore-forming bacteria. ► Counts varied with season with coliform...

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Veröffentlicht in:Bioresource technology 2011-10, Vol.102 (20), p.9425-9431
Hauptverfasser: McCarthy, G., Lawlor, P.G., Harrington, C., Gardiner, G.E.
Format: Artikel
Sprache:eng
Schlagworte:
Agricultural wastewater
Anaerobiosis
Animals
Applied sciences
Autumn
Bacteria
Bacteria - metabolism
Biological and medical sciences
Biological treatment of sewage sludges and wastes
Biological treatment of waters
Biotechnology
Colony Count, Microbial
Constructed wetlands
Counting
Enteric indicators
Enterococcus
Environment and pollution
Escherichia coli
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Manure
Microorganisms
Molds
Moulds
Pathogen
Pollution
Salmonella
Seasons
Swine
Wastewaters
Water treatment and pollution
Wetlands
Yeast
Yeasts - metabolism
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Zusammenfassung:► Microbial removal from liquid fraction of manure examined in meso-scale ICW’s. ► Salmonella undetectable in influent and Escherichia coli and Enterococcus rarely detected. ► Flow through cells reduced coliform, yeasts and moulds and spore-forming bacteria. ► Counts varied with season with coliform highest in the Summer. ► In future could spike influence with antibiotic-marked pathogen to track within ICW. The aim was to investigate microbial removal from the liquid fraction of anaerobically digested pig manure in meso-scale integrated constructed wetlands (ICW’s) over a 13month period. Four treatments were investigated: T1 (standard), T2 (effluent recycling), T3 (high nutrient loading), and T4 (high flow rate). Mean counts of yeasts and moulds and spore-forming bacteria were higher in T3 and T4 than in T1 and T2 (P
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2011.07.039