Skip to main content


Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial


The Greater Vancouver Regional District (GVRD) is a major regional agency managing wastewater collection and treatment for the City of Vancouver and other adjacent cities and surrounding municipalities. The design for the quality of the biosolids produced at the Annacis Island Wastewater Treatment Plant was predicated on USEPA standards for Class A biosolids. At the present time the quality of the biosolids must adhere to the provincial government regulations entitled Organic Matter Recycling Regulations (BC) as stipulated under the Waste Management and Health Act. The process that is used is termed extended thermophilic anaerobic digestion. The characteristics of the process are complete mix thermophilic anaerobic digesters followed by flow through vessels operated in series at thermophilic temperature. The thermophilic anaerobic digesters were commissioned in June 1997 and the flow through vessels were commissioned in June 1999. The design of the digestion and dewatering facilities are reviewed and operation results are presented.


The production of Class A biosolids at the Annacis Island Wastewater Treatment Plant has enabled the GVRD to broaden the customer base for biosolids use in the market sector. In British Columbia the higher level of pathogen control provides for less regulatory restrictions, resulting in a more marketable product. The production of a Class A quality biosolids and coupled with recent changes to biosolids management regulations, has allowed the GVRD to target new local markets to build diversity, flexibility and long term sustainability into the regions biosolids recycling programs. Even with a program that satisfies quality assurance requirements and regulations, biosolids reuse marketing is subject to swings in provincial and national government policies and global economic and health issues. This uncertainty creates substantial risk both for the GVRD and the customer in developing long-term marketing agreements.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2003-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more