The Little River Pond Mill Purifying The World

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Reduce Solids/Suspended Solids
  1. Solids reduction in municipal and livestock effluent have been significant. Reductions in municipal waste water have seen TSS values of greater than 200 mg/L plummet to less than 10 mg/L in a couple months. In a livestock/poultry manure lagoon (Nebraska, USA), the sludge depth was reduced from 8 feet to 1 foot in only 14 weeks. Enviro Series 600.
     
  2. In a primary (solid/liquid separation) dairy lagoon near Bassano, AB, Canada, in which the solids (including straw) had been separating out for approximately 1.5 years, the solids (~ 14 feet deep) lagoon had been liquefied in a couple months. The solids side was so solid at the time of installation that a backhoe was required to make a hole large enough for installing the 3 - Enviro Series 700's. Click the following links to show pictures displaying the transition of the lagoon. The first two photos show opposing ends of the lagoon after 2 months, and the third photo shows an east facing view of the lagoon after 4 months. After 5.5 months, there was a minor amount of floating waste on the west end of the lagoon. This remediation process would have benefited through use of more machines to speed the process, however, once the process has 'caught up' to the influent rate, excess machines may only be an electrical cost liability. Enviro Series 700
     
  3. Suspended Solids
     
    1. Reduction of suspended solids in a municipal sewage lagoon - Ontario, Canada, 1991

      Figure 8.0 Reduction of suspended solids in a municipal
      sewage lagoon over time when using a Little River Pond Mill® circulator

      Figure 8.0
       
    2. Municipal wastewater suspended solids change over time when using a Little River Pond Mill® circulator - Ontario, Canada, 1994

      Figure 9.0 Municipal wastewater suspended solids
      change over time when using a Little River Pond Mill® circulator

      Figure 9.0

       
  4. Sludge Depth
     
    1. Machine installed on mixed livestock/ poultry liquid manure lagoon, Nebraska, February 23, 1995.

      Table 8.0 Sludge depth reduction in a mixed
      livestock/ poultry manure lagoon in 14 weeks

      Date

      Sludge depth (feet)

      February 24, 1995

      8.0

      April 26, 1995

      2.0 - 2.5

      June 01, 1995

      1.0

      The pond mill was installed to decrease the sludge depth thereby increasing the holding capacity of the lagoon and preventing the requirement for a new lagoon.
       

    2. Machines installed on municipal sewage lagoons, Nebraska, USA, May 25, 1995

      Table 9.0 Sludge depth reduction in a
      municipal sewage lagoon in 12 days

      Date

      Sludge depth (feet)

      May 25, 1995

      1.0

      June 06, 1995

      0.0 - 1.0

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