Detergency in soil and vent pipe (SVP) systems

D. P. Campbell, K. D. MacLeod

    Research output: Contribution to journalArticle

    Abstract

    Current soil and vent pipe (SVP) system design guides aim to produce ventilated drainage networks, which protect attached water trap seals from unwanted air pressure effects that cause failure of trap seals. The ventilation design guides are based on steady-state experiments utilizing cold clean water as a test medium. However, most `grey' and `black' water sources are dosed with detergent, and are often warm, which significantly alters the behaviour when compared to the use of clean water. Thus, current design standards provide only approximations of SVP system response. This paper quantifies the effect of detergents in SVP systems in terms of observed air entrainment rates and previously published research on the factors that contribute to air entrainment.

    Original languageEnglish
    Pages (from-to)35-39
    Number of pages5
    JournalBuilding Services Engineering Research and Technology
    Volume21
    Issue number1
    Publication statusPublished - 2000

    Fingerprint

    Vents
    Pipe
    Soils
    Air entrainment
    Detergents
    Seals
    Water
    Pressure effects
    Drainage
    Ventilation
    Systems analysis
    Air
    Experiments

    Cite this

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    abstract = "Current soil and vent pipe (SVP) system design guides aim to produce ventilated drainage networks, which protect attached water trap seals from unwanted air pressure effects that cause failure of trap seals. The ventilation design guides are based on steady-state experiments utilizing cold clean water as a test medium. However, most `grey' and `black' water sources are dosed with detergent, and are often warm, which significantly alters the behaviour when compared to the use of clean water. Thus, current design standards provide only approximations of SVP system response. This paper quantifies the effect of detergents in SVP systems in terms of observed air entrainment rates and previously published research on the factors that contribute to air entrainment.",
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    Detergency in soil and vent pipe (SVP) systems. / Campbell, D. P.; MacLeod, K. D.

    In: Building Services Engineering Research and Technology, Vol. 21, No. 1, 2000, p. 35-39.

    Research output: Contribution to journalArticle

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