DOI: 10.1016/j.watres.2019.01.027
Scopus记录号: 2-s2.0-85061359163
论文题名: Decay rates of Escherichia coli, Enterococcus spp., F-specific bacteriophage MS2, somatic coliphage and human adenovirus in facultative pond sludge
作者: Schwarz K.R. ; Sidhu J.P.S. ; Toze S. ; Li Y. ; Lee E. ; Gruchlik Y. ; Pritchard D.L.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 62
结束页码: 71
语种: 英语
英文关键词: Adenovirus
; Bacteriophage
; Pathogen decay
; Sludge
; Wastewater stabilization pond
Scopus关键词: Agriculture
; Bacteriophages
; Decay (organic)
; Escherichia coli
; Health risks
; Pathogens
; Ponding
; Public risks
; Sewage lagoons
; Stabilization
; Stabilization ponds
; Additional treatment
; Adenovirus
; Agricultural purpose
; Colony forming units
; Primary facultative ponds
; Sludge
; Waste stabilization ponds
; Wastewater stabilization ponds
; Lakes
; abundance
; background level
; bacteriophage
; bioindicator
; coliform bacterium
; concentration (composition)
; environmental fate
; microorganism
; pathogen
; pollutant removal
; pond
; sludge
; virus
; agriculture
; article
; biome
; coliphage
; colony forming unit
; comparative effectiveness
; Enterobacteria phage MS2
; Escherichia coli
; feces
; human
; Human adenovirus C
; infectious agent
; microorganism
; nonhuman
; pond
; public health
; sludge
; waste water
; winter
; Adenoviridae
; Bacteria (microorganisms)
; Enterococcus
; Escherichia coli
; Human adenovirus
英文摘要: The purpose of this study was to evaluate the efficacy of a waste stabilization pond (WSP) system to reduce pathogen contaminants in sludge. This included examining the factors that influence the fate and concentration of human pathogens and their indicators in two sludge layers. The decay rates of five study microorganisms were determined under in-situ conditions at a WSP. The background levels of fecal origin microorganisms were consistently detected (ranging: Escherichia coli 10 4 to 10 6 , enterococci 10 1 to 10 3 , F-specific bacteriophage (MS2) 10 1 to 10 3 and somatic coliphage 10 1 to 10 4 colony-forming units (CFU) mL −1 , as well as 10 1 to 10 2 human adenovirus gene copies mL −1 ) in the primary facultative pond. Among microorganisms tested, the bacteria generally decayed faster than adenovirus and bacteriophage, particularly in the upper sludge layer. Due to the observed regrowth of E. coli, it may have a limited value as an indicator for pathogen removal in the wastewater stabilization ponds. The abundance of E. coli numbers within the pond biome followed changes in pond temperature over time. The results of the study suggest that viruses could survive for a long time, particularly in deeper layers (>1 metre) in the sludge, during winter months (T 90 = 156 d). The presence of human pathogens in WSP sludge, in particular viruses, may be a barrier to its beneficial reuse in agriculture. The results indicate that additional treatment of sludge may be required to mitigate potential public health risks from reuse of sludge for agricultural purposes. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121962
Appears in Collections: 气候变化事实与影响
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作者单位: Molecular and Life Sciences, Curtin University, GPO Box U1987 Perth, Western Australia, 6845, Australia; CSIRO Land and Water, EcoSciences Precinct, 41 Boggo Road, Dutton Park, Queensland 4102, Australia; CSIRO Oceans and Atmosphere, EcoSciences Precinct, 41 Boggo Road, Dutton Park, Queensland 4102, Australia; CSIRO Agriculture and Food, Queensland Biosciences Precinct, 306 Carmody Road, St LuciaQLD 4067, Australia; Water Corporation, 629 Newcastle St, Leederville, WA 6007, Australia
Recommended Citation:
Schwarz K.R.,Sidhu J.P.S.,Toze S.,et al. Decay rates of Escherichia coli, Enterococcus spp., F-specific bacteriophage MS2, somatic coliphage and human adenovirus in facultative pond sludge[J]. Water Research,2019-01-01