STM Group Presentation Experience is our Technology℠

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Innovation is our TechnologySTM Group Mission

‣ Novel approaches to established air pollution control processes.

‣ State-of-the-art new and retrofit technologies at a significant value.

‣ Unique engineering solutions by some of the world’s most innovative engineers.

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Original STM Bicarb mill for the first Neutrec System

International Headquarters STM Impianti - Italy

‣ Supplied the original sodium bicarbonate mill to Solvay for the first Neutrec system installed at the Reggio Emilia waste incinerator.

‣ With 35 years of air cleaning systems experience, today’s STM is regarded as the premier supplier of milling, dosing and separation system worldwide to the air pollution control industry.

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US Headquarters for Chemical, Food, Pharma and Other Industrial Applications

STM Micron - NJ USA

‣ One of only a handful of producers of the full line of mills, weigh feeders and separators to the specialty chemicals, food, pharmaceutical, pigments, ceramics and other industrial markets.

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Evaporative Gas Cooling and Dry Sorbent Air Pollution Control Systems

STM EcoSystems - NJ USA

‣ Dry gas scrubbing and injection systems for acid gas and heavy metals.

‣ Dry bottom evaporative gas cooling systems.

‣ Systems for all heavy industrial pyro-processing applications, including power, cement, lime, steel, primary metals processing, metals recovery, incineration, and biomass.

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Project Management and Engineering for Air Pollution Control Systems

STM Engineering - WI USA

‣ A team of engineers, project managers and field service personnel with more than 100 years combined experience in industrial process systems engineering.

‣ Engineering capabilities cover all main project engineering functions, including mechanical, electrical, instrumentation, project management and quality control.

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STM Team ApproachTaking Advantage of the Synergies of the Group

• Site surveys • Feasibility studies • Bid preparation • Technical and commercial evaluation of bids

• Basic and detail engineering

• Automation and control

• Civil calculations • Process engineering • Fluid dynamics and computational fluid dynamics (CFD)

• Noise abatement system

ENGINEERING MANUFACTURING ERECTION AFTER MARKET

• Local outsourcing • Quality control and assurance

• Expediting

• Team-up with local partners

• Find spare parts on the market

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Some of Our CustomersAir Pollution Control OEMs and End Users

Optimal System for Each ApplicationGas Cleaning Systems

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Combustion ProcessSystem Type and Typical Reagent

Grinding System Dosing and Injection System

Technical Grade Sodium Bicarbonate Trona Activated

Carbon

Ready to Use (Lime,

Limestone, etc.)

Sodium Bicarbonate +

Activated CarbonIndustrial and Hazardous

Waste Incineration • • • •

Biomass • • • •Cement • • •Power • • •

Water Treatment • • •Metals Recovery Furnace • • • •

Cremation • • • •General Combustion: Heavy

Fuel Oil and Natural Gas • • •

Municipal and Hospital Waste Incineration • • • •

Steel and Foundries • • • •Glass • • •

Typical Reductions Possible Using Dry ScrubbingEmissions Reductions

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Capture Mechanism Pollutant (mg/Nm3) EmissionsFabric Filter Particulate (mg/Nm3) <1

Sodium Bicarbonate

HCl (mg/Nm3) <5

SOx (mg/Nm3) <2

NOx (mg/Nm3) N/A

HF (mg/Nm3) <4

Activated Carbon

Heavy Metals (mg/Nm3) <0.05

Dioxins/Furans (ng/Nm3) <0.05

Cadmium (mg/Nm3) <0.001

Mercury (ng/Nm3) <0.001

Dual Fluid Atomizers for Gas Cooling and Chemical InjectionSTM Atomizing Systems

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Metering Feeders for Gas Cleaning ApplicationsSTM Dosing Systems

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MDS AC – 50

Hammermills for Gas Cleaning ApplicationsSTM Milling Systems

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Typical Multi-Outlet Material Distribution Installation on a Waste Incineration System

Example Installation

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Typical Dual Weigh-feeder Installation on a Circulating Dry Scrubber System

Example Installation

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Single Bicarmill Installation on Dry Injection SystemExample Installation

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Dual Bicarmill Installation on Dry Injection SystemExample Installation

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Multi-Outlet Bicarmill InstallationExample Installation

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