AWWA REUSE52139

The City of Vernon, with a population of 32,000, is located in the semi-aridOkanagan Valley of south central British Columbia, Canada. Following secondarytreatment by trickling filters, Vernon's treated wastewater is pumped into an 8,000acre foot reservoir and is stored up to a year before being chlorinated andirrigated on 1,000 Ha (2,500 acres) of nearby water-thirsty land. Annually,during a 6-month irrigation season, over 4.5 million cubic meters (1.2 billion USgallons) of nutrient rich reclaimed water is beneficially re-used. The program isin keeping with a City policy of not discharging treated wastewater at any levelof treatment into a watercourse, except on an emergency basis. However, demandson freshwater and the production of wastewater are increasing due to populationgrowth. A review of Vernon's 1985 Liquid Waste Management Plan (LWMP) wasinitiated to examine wastewater management technology and to plan for the next 20to 40 years. One of the conclusions of the review was that the integration ofwater and wastewater planning involving dual distribution reuse systems is theleast costly and most environmentally responsible approach for the City topursue. This paper summarizes Vernon's proposed dual water distribution system inwhich reclaimed water will be used for urban irrigation in addition to itscurrent uses. Includes table.

Product Details

Edition:

Vol. - No.

Published:

01/01/2000

Number of Pages:

5

File Size:

1 file , 99 KB