Optimum chemical metering Achieving the required treatment targets with minimum consumption through intelligent linking of mechanical engineering and automation

operational area | usage

  • Municipal and industrial wastewater treatment
  • Water treatment
  • Sludge treatment

Technology | Process

The metering is a complete system consisting of storage tank and metering station with controls for metering chemicals. The metering station, switchgear and control system are accommodated in the protective cabinet. The materials are suitable for the respective chemicals used. The pressure pulsation damper located downstream of each pump ensures removal of pressure peaks and lowpulsation flow. The overflow valves required for each pump protect the pumps, which theoretically can build-up an infinitely high pressure. Pressure maintaining valves ensure a constant pressure in the metering system.
The quantity of metered medium can be measured using an optional MID or oval-gear meter. The control system for the pumped quantity is activated by a measuring device in the tank and ensures optimum addition of the metered medium depending on the wastewater level. The requirements for integration in a process control system are fulfilled.

Process Engineering Components

  • Storage tank and metering station for outdoor and indoor installation
  • Outdoor installation:
    • Storage tank with and without insulation and heating
    • Metering station and switchgear and controlgear in weatherproof cabinet
  • Indoor installation:
    • Storage tank with and without exhaust air (off-gas) treatment
    • Supply and exhaust air routed to the outside
    • Metering station with splash protection
  • Lifting plants for tanks
  • Metering station with metering plate, switch and control cabinet as a preassembled unit
  • Compact metering station in the safety module container with IBC as chemical store
  • Control systems for delivery rate
  • Link with process control system possible


  • Optimum combination of mechanical, electrical and automation engineering components
  • Control system for economical chemical consumption
  • Modular system ensure optimum station size and therefore reduces investment and operating costs
  • Integration in any process control systems already installed is possible
  • Easy to operate
  • Fault/failure management
  • Can be easily retrofitted

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