A.T.S SRL Air Treatment System

Via Gioberti, 3, 20090 Trezzano S/N

Telephone +39 02 48400626
Fax +39 02 48400674

Trade fair hall

  • Hall 14 / B07
 Interactive Plan

Hall map

glasstec 2016 hall map (Hall 14): stand B07

Fairground map

glasstec 2016 fairground map: Hall 14

Our range of products

Product categories

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.02  Glass Melting / Waste gas technologies
  •  Filter technologies (flue gas and electrostatic)

Filter technologies (flue gas and electrostatic)

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.02  Glass Melting / Waste gas technologies
  •  NOx reduction technology, emission reduction technology

NOx reduction technology, emission reduction technology

  • 02  Glass processing and finishing
  • 02.12  Environmental protection/Recycling
  • 02.12.03  Heat recovery installations

Heat recovery installations

Our products

Product category: Filter technologies (flue gas and electrostatic)

Flue Gas Treatment plant and Waste Heat Recovery Systems

Air Treatment System srl (ATS) provides innovative flue gas treatment technologies, including wet flue gas scrubbing, dry or semi-dry flue gas scrubbing, fabric filters, wet and dry ESP, DeNOx units, seawater FGD and combined or multi-stage systems.

Our product range combines long-term experience with the specific knowledge gained from hundreds of installations around the world, from flue gas scrubbers for power stations to complex flue gas cleaning systems for glass industry. Thanks to a wide product portfolio, innovativeness in engineering and long experience in executing projects, ATS has the right solution to meet all environmental and economic goals.

Maintaining the energy efficiency (one of the new trend in glass industry) of the processes, complying with world’s strictest emissions legislation, the desire for low consumption of reagents, the need for minimal residues, and the installation simplicity with a compact design are the milestones of ATS’ approach. Quite often, our systems are delivered as a “turnkey package” to ensure single-source accountability and efficiency.

In the last few years, rising energy costs and legal requirements for reductions in CO2 emissions demand efficient solutions, particularly in applications that consume a large amount of energy like glass manufacturing. One solution that can be effective is the recovery of energy from waste heat, and following this approach we recently open a new branch of the company expressively for this market. ATS innovative waste heat recovery systems utilise existing energy sources in order to efficiently generate thermal heat, process heat or electrical power. The results: high efficiency, low emissions, cost reductions and lower consumption of resources.

Global R&D collaboration with a network of well-recognized partners and universities and cutting-edge engineering skills lay the foundation for our technology. Early identification of each client’s needs help ATS make a long-term contribution to the air we will breath tomorrow.

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Company news




Jan 31, 2016

ATS supplies the DeNOx SCR unit for NOx removal on the glass production plant of Origgio

O-I is the worldwide leading manufacturer of container glass, operating in 21 countries with 75 plants and more than 21,000 employees, and has over a century in the production of clean, sustainable glass packaging and able to confer recognition the major brands of food and beverage. The production of O-I is focused on glass containers for beer, wine, distillery products, foods and drinks.

In Italy it has 11 factories, employing 1,800 employees and from which every day are shipped standard and customized bottles to the main players of the Italian "food & beverage" market, including companies such as San Pellegrino, Fratelli Carli, Monini, Ponti, Caviro and Nosio. Some of these have also become testimonial of the campaign "Glass is Life" aimed to demonstrate the unique qualities of glass packaging and its ability to create successful brands in the food and beverage industry, showing the love consumers have for this type of material.

Glass is a 100% natural material; the raw materials from which it is composed include sand and limestone. It can be used and recycled over and over again. But not for this reason its production is totally painless for the environment: the high melting temperatures of its components may in fact lead to the formation of nitrogen oxides (NOx), which besides being a greenhouse gas, are also one of the main causes of acid rain.

O-I, once again, proved to be a company that stands out for the strong environment respect, deciding to equip its plant in Origgio of a catalytic system (SCR) for the nitrogen oxides removal. Such a system, the first in Italy regarding container glass, involves the injection of ammonia solution inside the duct at the outlet of the ESP. The ammonia will react then with the nitrogen oxides present in the flue gases on the surface of a catalyst, transforming them into nitrogen and water and allowing the release of those harmless compounds into the atmosphere.

ATS intervention will then be focused to the integration of such a system in the existing flue gas treatment plant, by limiting as much as possible the unavailability of the desulfurization unit and ensuring, through appropriate modifications, that the plant, in its final configuration, has no impact on depression maintained nowadays, indeed ensures a better stability even during the phases of reversals typical of a melting furnace for glass.

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Apr 30, 2015

ATS recently commissioned first waste heat recovery system in a container glass facility

Established in 1938 as a handcraft plant, Vetrobalsamo S.p.A. is located on a 180.000 square meters area in Sesto San Giovanni and thanks to the ecological sustainable choices made, it is considered as a urban glassworks, very well integrated in the city area.
Specialized in the creation of customised bottles, Vetrobalsamo is able to give an answer to any kind of requirements of the customer, by manufacturing more than half a million glass bottles per day in Maya and flint colours.

Unique glassworks in the glass field in Italy to have installed oxy-fuel furnaces, Vetrobalsamo manufactures bottles with low carbon footprint, letting the customers to be on the market in conditions of absolute pre-eminence in terms of environmental sustainability. However in this site no pollution control plant was installed since ATS has been awarded by the contract at the end of 2012.

The glass manufacturing process will normally generate some specific pollutants like dust, SO2, that can be found in different quantities by considering the type of fuel normally used into the furnace burners, HCl, normally just in traces, and NOx.

The amount of SO2 released during glass manufacturing is mainly determined by the sulphur content of the fuel, the sulphur content in the batch and the sulphur absorption ability of the glass produced. The sulphur added to the batch is partly bound to the glass as SO3 or sulphite in the reduced molten glass.

As result of the presence of this pollutant, accordingly the IED, it is generally mandatory to have a sulphur neutralization before leaving the flue gas going into the atmosphere. In this particular case we provided a sodium bicarbonate injection into a Venturi dry scrubber. This particular system has several advantages:

1) By providing an injection of reagent into the Venturi throat, so in a turbolent region, we perform a very good mixing between bicarbonate and pollutants.
2) The ascending and overturning parts are realized in order to have a low ascending speed, this fact will guarantee a contact time higher then 3.5 sec that will allow the completion of the reaction before reaching the filtration device.

As results of those points we were able to provide a system that can reach abatment of SO2 in the order of 90% with a stoichiometrical ratio of just 1.15.

As last stage it has been also provided an high efficiency fabric filter (protected by a cooling tower just used during maintenance periods of the waste heat recovery boiler), in order to collect all the dust coming from the glass furnace as well as all the reaction product between bicarbonate and acid pollutants, able to provide under design condition a captation yield that exceed the 99.9%.

Then due to a contract signed with local authorities, we received also the request for a Waste Heat Recovery System (WHRS) that should be able to recover the thermal energy of the flue gas in order to feed the local district heating, and with the surplus of energy still present in the gases produce all the possible electrical power available. In particular it was required to recover up to 5MWth coming from two furnaces and being able to produce up to 500kWe from the surplus of energy not used by the district heating. 

The saturated steam generator, for the waste heat recovery, has been designed in order to ensure a vigorous natural circulation in all the different heating loads coming from the furnaces.

Flue gases going through the steam generator will cool down from 750°C to 200°C, that is a suitable temperature both for the reaction with sodium bicarbonate and for the dust collection by a fabric filter in order to guarantee the requested emissions.

Medium pressure saturated steam (15÷24 bar(g) with a title between 80÷95 %) is expanded inside a twin screw turbine connected to a power generator with nominal production of 500 kWe. Subsequently, the saturated steam coming out from the twin screw expander at a lower pressure (0,5÷1,5 bar(g) ) exchange the residual thermal power in order to heat water for the local district heating network. This condensing heat exchanger is able to treat up to 8.000 kg/h of saturated steam at 1,5 bar(g) with an heat input of 5MWth.

In case of lack of request by the district heating network, or in case of any possible fault, a system of condensing air cooler will ensure the safety of the system. The resulting condensates will be in this way recirculated inside the boiler in order to close the loop. A demineralized water plant, with a production of 500 lt/h, will guarantee the continuous feeding of the steam generator.

In case of any further information you may require on that subject please contact us, we will be please to provide all possible details concerning this technology.

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About us

Company details

Air Treatment Systema (ATS) is a leading company in the field of plant flue gas treatment downstream of glass melting furnaces, by realizing both in Italy and abroad many applications that operate at high temperatures with DeSOx reactors, dry electrostatic precipitators (ESP) or fabric filters, DeNOx SCR units and energy recovery systems.

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Company data

Sales volume

5-20 Mio US $

Export content

max. 75%

Number of employees




Area of business

Glass manufacture / Production technology

Target groups

Manufacturing, Processing and Finishing