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  1. malagigi

    H.B.C. ring media for sewage treatment plant

    Hallo to everybody, I'm a chemical engineer and I'm involved in a sewage water plant design. Have You ever listened to H.B.C. ring to be installed inside an aeration tank?? Can You tell me which kind of media I'm talking about?? The only information I've got it's relevant to a diameter of 30 mm...
  2. malagigi

    blowers

    hello, i would like to ask you which blower is more suitable for a mixed bed regeneration process and also which is the difference between a rotary piston type and a roots blower. we have as process design 130 Nm3/hr and 400 mBar differential pressure for the air. thank you in advance Daniele
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