DOI: 10.1016/j.watres.2018.04.064
Scopus记录号: 2-s2.0-85047247600
论文题名: Rheological characterisation of concentrated domestic slurry
作者: Thota Radhakrishnan A.K. ; van Lier J.B. ; Clemens F.H.L.R.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 141 起始页码: 235
结束页码: 250
语种: 英语
英文关键词: Concentrated domestic slurry
; Concentration and temperature influence
; Error-analysis
; Novel sanitation
; Parameter estimation
; Rheology
Scopus关键词: Error analysis
; Kitchens
; Parameter estimation
; Rheology
; Sanitation
; Viscosity
; Yield stress
; Consistency index
; Herschel-Bulkley model
; Human faecal wastes
; Rheological models
; Rheological property
; Sanitation systems
; Temperature influence
; Viscosity increase
; Slurries
; concentration (composition)
; design
; error analysis
; parameter estimation
; power law
; rheology
; sanitation
; slurry
; temperature
; transportation system
; Article
; blood rheography
; domestic waste
; flow kinetics
; flow measurement
; food waste
; Netherlands
; particle size
; priority journal
; sanitation
; sludge
; temperature
; viscosity
; waste water treatment plant
; chemistry
; flow kinetics
; theoretical model
; waste water
; Models, Theoretical
; Rheology
; Temperature
; Viscosity
; Waste Water
英文摘要: The much over-looked element in new sanitation, the transport systems which bridge the source and treatment facilities, is the focus of this study. The knowledge of rheological properties of concentrated domestic slurry is essential for the design of the waste collection and transport systems. To investigate these properties, samples were collected from a pilot sanitation system in the Netherlands. Two types of slurries were examined: black water (consisting of human faecal waste, urine, and flushed water from vacuum toilets) and black water with ground kitchen waste. Rheograms of these slurries were obtained using a narrow gap rotating rheometer and modelled using a Herschel-Bulkley model. The effect of concentration on the slurry are described through the changes in the parameters of the Herschel-Bulkley model. A detailed method is proposed on estimating the parameters for the rheological models. For the black water, yield stress and consistency index follow an increasing power law with the concentration and the behaviour index follows a decreasing power law. The influence of temperature on the viscosity of the slurry is described using an Arrhenius type relation. The viscosity of black water decreases with temperature. As for the black water mixed with ground kitchen waste, it is found that the viscosity increases with concentration and decreases with temperature. The viscosity of black-water with ground kitchen waste is found to be higher than that of black water, which can be attributed to the presence of larger particles in the slurry. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112684
Appears in Collections: 气候减缓与适应
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作者单位: Delft University of Technology, Civil Engineering and Geosciences, Department of Water Management, P.O. Box 5, Delft, AA 2600, Netherlands; Deltares, Department of Industrial Hydrodynamics, P.O. Box 177, Delft, MH 2600, Netherlands
Recommended Citation:
Thota Radhakrishnan A.K.,van Lier J.B.,Clemens F.H.L.R.. Rheological characterisation of concentrated domestic slurry[J]. Water Research,2018-01-01,141