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Dewats Modules Final
 

Dewats Modules Final

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    Dewats Modules Final Dewats Modules Final Presentation Transcript

    • Technical overview of
        • DEWATS Modules
    • Technical overview Septic tank / Settler Anaerobic Baffled Reactor Biogas settler Anaerobic Filter Planted Gravel Filter Pond Systems OR
    • Technical overview
      • Septic tank / settler
      • Consists of min. 2 to 3 compartments
      • Settling / sedimentation tanks for retaining particle
      • Outlet is free from settleable solids
      • Dissolved & suspended matter passes untreated to next treatment stage
      • Efficiency 25% to 40%
      • Desludging period 1 to 3 yrs - depends on sludge storage
    • Technical overview
      • Biogas settler
      • Sedimentation tanks for retaining particles
      • Biogas is formed due to digestion of settled organic matter in anaerobic condition
      • Outlet is free from settleable solids
      • Dissolved & suspended matter passes untreated to next treatment stage
      • Efficiency 25% to 40%
      • Desludging period 1 to 3 yrs, depending on sludge storage
      • Biogas production: Gas storage is needed (gas tight)
    • Technical overview
      • Anaerobic baffle reactor
      • Treatment in absence of oxygen (anaerobic)
      • Wastewater passes through a series of chambers in up-flow form
      • Sludge (activated) at the bottom of each chamber
      • Further treatment (degradation) of suspended & dissolved solids by available bacteria
      • Efficiency 75% to 85%
      • Desludging needed only if excess sludge (activated) is generated
    • Technical overview
      • Anaerobic fixed bed filter
      • Treatment occurs in absence of oxygen (anaerobic)
      • Wastewater passes in a series of chambers through the filter material in up-flow form
      • Filter is made out of gravel, slag or plastic elements
      • To avoid plugging pre-treatment (sedimentation) is necessary
      • Efficiency 75% to 90%
      • Desludging is needed only if excess sludge (activated) is generated
    • Technical overview
      • Planted gravel filter
      • Treatment occurs in presence of oxygen (aerobic)
      • Treatment concentrates more on removal of smell & color
      • Planted gravel filter consist of plants (reeds) & filter materials (graded gravels, river pebbles)
      • Filter is permanently soaked (up to 50 cm from bottom) in water
      • Flow direction is horizontal
      • Suitable for pre-treated wastewater
    • Technical overview
      • Flow principle of horizontal filter
      Inlet Slope protection with gravel Outlet Pre- treatment
    • Please contact us for more details www.cddindia.org