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  • Home
  • Company
    • The advantage
    • Powder handling specialist
    • Sales Network
    • Contact
  • Blog
  • News
  • Products
    • Mechanical Bin Activator
    • Big Bag Bulk Discharger
    • Flexible Screw Conveyor Type DMR
    • Screw Feeder Hopper
    • Injector Screw for moisture isolation
    • Slurry Tank
    • Pneumatic Conveying Systems
    • Loss in Weight Feeder
    • Slurry Eductor PAC Microsand
    • Slurry Metering System
    • Silo Retrofit
    • Bulk storage silos
    • Lime Slaker Unit
    • Sludge Mixer Class B
    • Sludge Screw Conveyor
  • Applications
    • Water & Wastewater
      • pH Control
      • Sludge Stabilization
      • Taste/Odor Control & Polluants Removal
      • Water Softening & Remineralization
    • Air Pollution Control
      • Dioxin & Furan Treatment
      • SO2, SO3 and Acid Gases
    • Industrial
      • Cement
      • Food Processing
      • Plastics
      • Pulp and Paper
      • Glass
  • Powders
    • Dry Chemicals & powders
    • Powdered Activated Carbon
    • Dry Cement
    • Hydrated Lime – Slaked Lime
    • Quicklime
    • Soda Ash
    • Sand
    • Polymers
  • Photos
  • Resources
  • Contact
  • US Locations

Activated Carbon Injection – Eco-Center – Bolzano Waste Incinerator, Italy

dual feeder miniature

Flue Gas Treatment with Activated Carbon Injection (A.C.I.)

Bolzano, Italy

Controlling dioxins and mercury emissions using Sodimate’s Pneumatic Transfer solution to upgrade an Activated Carbon Injection system

Sodimate designed, supplied, assembled and started-up an installation for discharging and metering Powdered Activated Carbon (PAC) for the Bolzano waste incinerator.

This facility is a property of ECO-CENTER, a company whose main activity is waste management and wastewater  treatment throughout the South Tyrol region of Italy.

This site burns 130,000 tons of waste per year, producing 78 gigawatt hours of thermal energy for the urban heating network and 89 gigawatt hours of electrical energy for the electrical network each year.

After the waste incineration, the fumes are conveyed through a complex treatment process involving various reagents (hydrated lime, soda ash, powder activated carbon, etc.).

The Sodimate expertise was an integral part in the Active Carbon Injection (A.C.I.) stage, widely used to control dioxins and mercury emissions.

Previous installation at Eco center
Previous installation at Eco center

Previous installation

The previous installation, commissioned in 2013 lacked both accuracy and reliability:

  • Flow issues in the silo (arches)
  • Leaks
  • Inaccurate metering
  • Uneven powder distribution between the pneumatic lines

The new SODIMATE installation

SODIMATE was able to redesign the installation and provide a viable solution, from the storage silo down to the rotary airlock inlets, where the powder is pneumatically conveyed.

The new SODIMATE Activated Carbon Injection installation includes:

  • A double silo cone made of steel (silo capacity is 1,200 ft³/9,200 gal), feeding into two metering lines.
  • The first metering line includes a pneumatic and manual slide gate (to isolate the silo during maintenance operations), a mechanical bin activator ZDM and a metering screw DDMR (feedrate range from 11  to 66 lb/h)
  • The second metering line includes the same parts, with an additional metering screw DDMR and a screw conveyor DMR. This is a security redundancy to bypass the first line.
ATEX

The equipment complies with the  site standards including European explosive areas restrictions (ATEX).

To ensure the proper operation of the installation, several sensors are set along the process (level, rotation, temperature, position, anti-blockage switches).

 

Thus, the issues of the previous installation were rectified by our experience and the quality of the Sodimate equipment:

  • robust equipment
  • continuous extraction
  • accurate and dust-free volumetric metering
  • ease of use and maintenance
2020-01-29
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    • Activated Carbon
      Activated Carbon: Types, Applications, Advantages
      2022-07-27
    • What is a Slurry Tank and How Does it Work
      What is a Slurry Tank and How Does it Work?
      2022-07-04
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      2022-06-21
    • How To Avoid Product Breakage While Using Pneumatic Conveying System
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