The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers

This study aims to assess the transportability of food waste disposer particles within a sewer system. A series of laboratory studies has examined the physical characteristics of solid particles derived from domestic food waste disposers. Particle size distributions and maximum settling velocity cha...

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Autores principales:	Abigail Legge, Andy Nichols, Henriette Jensen, Simon Tait, Richard Ashley
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	domestic food waste disposers food waste in-sewer deposition particle fall velocity sewer solid entrainment thresholds Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/9f04f66df8754249a6271a9e9070125f
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spelling	oai:doaj.org-article:9f04f66df8754249a6271a9e9070125f2021-11-06T11:09:47ZThe characteristics and in-sewer transport potential of solids derived from domestic food waste disposers0273-12231996-973210.2166/wst.2021.169https://doaj.org/article/9f04f66df8754249a6271a9e9070125f2021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/12/2963https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732This study aims to assess the transportability of food waste disposer particles within a sewer system. A series of laboratory studies has examined the physical characteristics of solid particles derived from domestic food waste disposers. Particle size distributions and maximum settling velocity characteristics were measured for 18 common food types, and stored in a publicly accessible database. Particle size distributions are shown to fit well with a 2-parameter Gamma distribution. Settling velocity is generally higher for larger particles, except when particle density and sphericity change. For most food types, particle specific gravity was close to unity. Egg shell particles had a significantly higher specific gravity. This information, combined with the particle size data have been used to show that there is a very low likelihood of food waste particle deposition in sewers during normal operational flows, other than temporary transient deposits of egg shell particles. HIGHLIGHTS Particles characterised for 18 common food types.; Sizes fit a Gamma distribution, mode of 0.59 to 4.76 mm.; Most particles had apparent densities close to water.; Most particles entrained at low boundary shear stress, unlikely to form deposits in sewer pipes.; Egg shell showed higher entrainment threshold, but still expected to transport during dry weather flows.;Abigail LeggeAndy NicholsHenriette JensenSimon TaitRichard AshleyIWA Publishingarticledomestic food waste disposersfood wastein-sewer depositionparticle fall velocitysewer solid entrainment thresholdsEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 12, Pp 2963-2979 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	domestic food waste disposers food waste in-sewer deposition particle fall velocity sewer solid entrainment thresholds Environmental technology. Sanitary engineering TD1-1066
spellingShingle	domestic food waste disposers food waste in-sewer deposition particle fall velocity sewer solid entrainment thresholds Environmental technology. Sanitary engineering TD1-1066 Abigail Legge Andy Nichols Henriette Jensen Simon Tait Richard Ashley The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
description	This study aims to assess the transportability of food waste disposer particles within a sewer system. A series of laboratory studies has examined the physical characteristics of solid particles derived from domestic food waste disposers. Particle size distributions and maximum settling velocity characteristics were measured for 18 common food types, and stored in a publicly accessible database. Particle size distributions are shown to fit well with a 2-parameter Gamma distribution. Settling velocity is generally higher for larger particles, except when particle density and sphericity change. For most food types, particle specific gravity was close to unity. Egg shell particles had a significantly higher specific gravity. This information, combined with the particle size data have been used to show that there is a very low likelihood of food waste particle deposition in sewers during normal operational flows, other than temporary transient deposits of egg shell particles. HIGHLIGHTS Particles characterised for 18 common food types.; Sizes fit a Gamma distribution, mode of 0.59 to 4.76 mm.; Most particles had apparent densities close to water.; Most particles entrained at low boundary shear stress, unlikely to form deposits in sewer pipes.; Egg shell showed higher entrainment threshold, but still expected to transport during dry weather flows.;
format	article
author	Abigail Legge Andy Nichols Henriette Jensen Simon Tait Richard Ashley
author_facet	Abigail Legge Andy Nichols Henriette Jensen Simon Tait Richard Ashley
author_sort	Abigail Legge
title	The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
title_short	The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
title_full	The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
title_fullStr	The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
title_full_unstemmed	The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
title_sort	characteristics and in-sewer transport potential of solids derived from domestic food waste disposers
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/9f04f66df8754249a6271a9e9070125f
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The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers

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