{"id":7723,"date":"2020-06-23T15:22:18","date_gmt":"2020-06-23T13:22:18","guid":{"rendered":"http:\/\/www.hydrograv.com\/?page_id=7723"},"modified":"2022-07-07T09:42:29","modified_gmt":"2022-07-07T07:42:29","slug":"activated-carbon-reactor","status":"publish","type":"page","link":"https:\/\/www.hydrograv.com\/en\/services\/simulation\/activated-carbon-reactor\/","title":{"rendered":"Activated-carbon-reactor"},"content":{"rendered":"
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Simulation of Activated Carbon Reactors<\/span><\/strong><\/span><\/p>\n

What are the benefit of hydrograv simulations?<\/span><\/strong><\/span><\/p>\n

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  • proof of the flow conditions and improved mixing and hydraulic residence time<\/li>\n
  • efficient dimensioning of agitators<\/li>\n
  • prevention of depositions<\/li>\n
  • maximization of separation in the settling tank<\/li>\n<\/ul>\n

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    Example 1: Measurement of settling velocities
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    • investigation of sludge properties<\/li>\n
    • settling tests<\/li>\n
    • calibration of the settling models<\/li>\n<\/ul>\n

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      Figure:<\/strong>\u00a0\u00a0 Comparison between measured and simulated settling velocities.
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      Example 2: Simulation of a contact reactor with inner settling tank
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      • optimization of mixing in the reactor<\/li>\n
      • maximization of particle separation in the settling tank<\/li>\n<\/ul>\n

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        Figure:<\/strong>\u00a0\u00a0 Flow velocities in the contact reactor designed as a ring-shaped tank.
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        Figure:<\/strong>\u00a0\u00a0 Concentration of a mix of activated carbon and activated sludge in a settling tank. Illustration on a vertical plane.
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        Example 3: Optimization of a contact reactor
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        • optimization of the number of agitators, the agitator\u2019s thrust and their orientation<\/li>\n
        • installation of deflection baffles<\/li>\n
        • minimization of depositions<\/li>\n
        • minimization of the energy consumption for mixing<\/li>\n
        • proof of different loading cases: the preferred variant is the best compromise between dry weather and stormwater flow<\/li>\n<\/ul>\n

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          Figure:<\/strong>\u00a0\u00a0 Distribution of particles as normalized mass fraction.
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          Figure:<\/strong>\u00a0\u00a0 Velocities close to the bottom as proof for depositions.
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          Figure:<\/strong>\u00a0\u00a0 Deterministic analyses of the velocities close to the bottom as proof for depositions.
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          Figure:<\/strong>\u00a0\u00a0 Statistical analyses of a tracer simulation, here showing the 10 %-percentile as proof for short-circuit flows.
          \n<\/span><\/p>\n<\/div><\/section><\/div><\/div><\/div><\/main><\/div><\/div>