Fats, Roots, Oils, and Grease (FROG) in Centralized and Decentralized Systems

WERF Report 03-CTS-16T

Ebook only

Available as an ebook

Please purchase via www.iwaponline.comOpens in new window

Also part of Water Intelligence Online Digital Reference Library

Standard ePrice: £29.00


Access ebook

Publication Date: 01/02/2009

Pages: 210

ISBN13: 9781843395232

eISBN: 9781780403649

Download book flyer Print page

Fat, oil, and grease (FOG) is generated everyday by food preparation and cleaning activities conducted at commercial establishments and, on a smaller scale, by residential sewer usage. Another common problem, known to all plumbing and utility maintenance personnel, is the process of increasingly dense mats of root hair. FOG or root accumulations in the sanitary sewer collection system result in reduced capacity that may lead to sanitary sewer overflows (SSO) if not periodically cleaned. As the mat or accumulation commence, the effect of slowed wastewater flow exacerbates the rate of accumulation and deposit of FOG materials onto the pipe walls, thereby reducing capacity. The primary means of controlling FOG blockages is to capture and retain FOG materials through passive grease interception devices.

Limited scientific studies have been done evaluating these devices, and many claims of enhanced performance made in marketing strategies by manufacturers of grease and oil interception devices need to be verified by objective and unbiased research protocols. This report performed an evaluation of field grease interceptors through their separation and cleaning cycles, performed controlled laboratory scale grease interceptor tests and numerical simulations to assess their removal efficiency at different residence times and under different geometric configurations.

Joel J. Ducoste

Kevin M. Keener

John W. Groninger

The latest from @IWApublishing

RT : 1 month left to submit for the 2022! 📑 Submit your outline paper now 👇 https://t.co/31CwJ6Awl5 https://t.co/QecrurclMM 3 days 21 hours ago
Water Science & Technology has several Special Issues open for submissions! With so many to choose from, take a lo… https://t.co/yCb2kFU0fC 5 days 14 hours ago
RT : 1 month left to submit your content for the & Exhibition in Copenhagen! Hurry and submit your… https://t.co/j0ILGvKcjp 5 days 16 hours ago