Water quality improvement plan for Greater Vancouver
- Black and Veatch, Irvine, CA (United States). Environmental Div.
- Greater Vancouver Regional District, Burnaby, British Columbia (Canada)
- Stanley Associates Engineering Ltd., Surrey, British Columbia (Canada)
The Greater Vancouver Regional District commissioned an 18-month planning and predesign study to define the components in a comprehensive water and predesign study to define the components in a comprehensive water quality improvement plan for its 2,500-ML/d (660-mgd) system. The study included three primary tasks: (1) predesign of disinfection and corrosion control facilities, (2) a 12-month pilot testing program using parallel pilot plants at the Seymour and Capilano water supply reservoirs, and (3) planning for future filtration plants. The results of the study identified chlorine, ammonia, sulfur dioxide, soda ash, and carbon dioxide in a two-stage treatment approach as the recommended disinfection and corrosion control scheme for the low-pH, low-alkalinity water supplies. The pilot-plant studies confirmed that direct filtration using deep-bed monomedium filters operating at a loading rate of 22.5 m/h provided excellent treatment performance and productivity over a wide range of raw-water quality. Ozonation was studied extensively and found not to be beneficial in the overall treatment performance. The phased improvement plan for the disinfection, corrosion control, and filtration facilities has an estimated capital cost of about Can$459 million.
- OSTI ID:
- 5266993
- Journal Information:
- Journal of the American Water Works Association; (United States), Vol. 85:10; ISSN 0003-150X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BRITISH COLUMBIA
WATER QUALITY
DRINKING WATER
WATER SUPPLY
PLANNING
OPTIMIZATION
WATER TREATMENT
CANADA
DEVELOPED COUNTRIES
ENVIRONMENTAL QUALITY
HYDROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
WATER
320603* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Public Utilities- (1980-)