Legge, A. orcid.org/0000-0001-7930-2471, Nichols, A. orcid.org/0000-0003-2821-621X, Jensen, H. et al. (2 more authors) (2021) The characteristics and in-sewer transport potential of solids derived from domestic food waste disposers. Water Science and Technology, 83 (12). pp. 2963-2979. ISSN 0273-1223
Abstract
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | domestic food waste disposers; food waste; in-sewer deposition; particle fall velocity; sewer solid entrainment thresholds |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/L015412/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 03 Dec 2021 13:41 |
Last Modified: | 05 Dec 2021 00:56 |
Status: | Published |
Publisher: | IWA Publishing |
Refereed: | Yes |
Identification Number: | 10.2166/wst.2021.169 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:181178 |