Project review – Dunnottar primary cell lagoon treatment case study

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Courtesy of Nordevco Associates Ltd.

A. Pre-Treatment
Sludge measurement - May 17, 2004 by Mitch McPherson, Foreman, Village of Dunnottar
Volume of sludge (based on average depth of all sludge readings): 50,616 ft3

  1. Area of Primary Cell: 800’ x 450’ = 360,000 ft2
  2. 40.5 inches of sludge (24 readings) = 1.6875 inches average depth

B. Treatment
Treatment Date: May12, 2005-12-24
Product Application: 1,250 kg BactiDomus® Technology product applied by Dunnottar Municipal
Staff

C. Post-Treatment
Sludge measurement – October 17, 2005 by Mitch McPherson, Foreman, Village of Dunnottar
Volume of sludge (based on average depth of all sludge readings): 11,875 ft3

  1. Area of Primary Cell: 800’ x 450’ = 360,000 ft2
  2. 9.5 inches of sludge (24 readings) = .39583 inches average depth

D. Treatment Results
Volume of sludge broken down: 38,741 ft3
Percent reduction in sludge: 76.54%

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