Case Study:

Anglian Water, WRC & Fats, Oils and Grease


Baddow Road Project - Chelmsford
Independent Study
April 20, 2007 - February 22, 2008

The Problem

Anglian Water & Water Research Centre (Project Chelmsford) contacted Environmental Biotech to help with their problem of WRC & Fats, Oils and Grease, this project was completed on the February 2008 with dramatic results. FOG is estimated to cost Anglian Water in excess of £4 million per year.


The Impacts of FOG

  • Health and Safety issues
  • Equipment breakage
  • increased Wastes
  • Public Disruption
  • Increased Odours
  • Impact on Treatment
  • Pollution
  • Pumping station blockages
  • Sewer flooding
  • Sewer blockages
  • Increase vermin


Impact on the community

  • Bad Odours to all
  • Potential loss of customers due to odours + hygiene
  • Disruption at times sewer needed to be cleaned out
  • Cost of monitoring
  • Cost to handle vermin in the area by all outlets
  • EHO costs associated with complaints, monitoring and handling


The Project

  • Dealing with FOG . to find best available solution
  • Involving all Stakeholders:
  • Local Government
  • Water Companies
  • FOG Producers / Restaurateurs
  • Solution providers
  • EHO (Environmental Health)
  • All under the WRC - Water Research Council
  • Inaugurated on April 20th 2007 by John Whittingdale MP

    Undertaking the Process

    • Identification of the site to trial
    • Working with all parties to create program and protocols
    • Addressing site issues
    • Understanding site-i.e. site survey, drain mapping, CCTV, tie into the sewer
    • Working with restaurants to understand their process and practices
    • Choosing critical control points
    • Keeping information updated with regular site monitoring
    • Working with all stakeholders and coordinating information with WRC
    • Assessing impact of odors and vermin with EHO
    • Culminating in the day today '22nd Feb 2008' 10 months


    Major FOG Stakeholders

    • Water Companies
    • Environment Agency
    • Biodiesal Producers
    • FOG Product Suppliers
    • Building Control Officers
    • Local Authorities
    • Environmental Health Officers
    • Food Production Facilities
    • Communal Places
    • Eating out places
    • Institutions


    Basis for Trial

    • Maintain current practice - chemicals, other dosing
    • Improve and educate on Best Management Practices
    • Do nothing
    • Grease interceptors trailed and monitored - mechanical and normal
    • BioClear Solutions system



    • Where BMP's and education were introduced, there was a significant impact in the reduction of FOG, and better understanding of the issue
    • Where nothing was done - there was no improvement or change
    • Where Grease interceptors were used, there was only a small improvement; however, without maintenance and monitoring, they proved to be ineffective, due to the volume and capacity issues
    • Other chemicals and practices - again no change or significant improvement noticed
    • BioClear Solutions system - This was the best and most comprehensive. It covered BMP training, education, monitoring and an introduction of a biological solution, with good information and corrective procedures to all concerned. Not only did the system deal with site specific issues and odors, but it also dealt with fugitive FOG discharge in the sewer from other food outlets. There was also significant reduction in vermin in the area.



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    Group Picture
    (L-R) Catherine Brown (WRC), Aziz Tejpar (EB), Chef Pizza Express, Paul Gibbs (Anglian Water Services),
    John Whitingdale MP

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