emissions in the atmosphere

Solvent abatement

Solvent abatement in air emissions is one of the challenges faced by industries using printing processes.

The purification of air emissions from the industrial environment are an ever-increasing challenge, both because of the limits imposed by regulations and the increased “green” awareness of companies that want to minimize their impact on the environment.

PUSTERLA 1880-a global player in luxury packaging-is a company that pays the utmost attention to the sustainability of its products and processes, as evidenced by its numerous certifications and ethical commitment.

On the other hand, luxury packaging requires refined finishes that involve the use of very special inks and products and thus require great care in abating emissions from printing plants before they are released into the atmosphere.

The main focus was on solvent abatement but the limit was on total VOCs. Overall, the plant requirements requested by the company were:

  • Demonstrated consistency in VOC abatement within the set parameters and for the set duration;
  • programmable, simple and autonomous maintenance interventions without creating dust or dirt in the work environment;
  • Small plant footprint.

The company’s choice to achieve its goals was a system based on titanium dioxide photocatalytic filtration.

With this technology, purification is accomplished by photocatalysis, whereby titanium dioxide absorbs ultraviolet (UV) light and uses the energy generated to break down VOC molecules into simpler, harmless compounds such as carbon dioxide and water.

Advantages of titanium dioxide filtration:

  • Effectiveness: Can remove a wide range of VOCs, even those with low concentrations.
  • Selectivity: Can selectively attack VOCs, leaving other gases in the air or water unaffected.
  • Environmentally friendly: Does not use hazardous chemicals and does not produce harmful by-products.
  • Low maintenance: Titanium dioxide filters are relatively robust and require minimal maintenance.

The Depurex plant was found to meet all the required requirements and was finally adopted after 6 months of field testing, during which periodic analyses were carried out that confirmed its effectiveness.

The plant was in operation from 2011 until the decommissioning of the printing line, which was active for an average of 12 hours a day; filters were replaced every six months.

Solvent abatement in printing plant

Grafico Pusterla 1 1

Data in mg/mc

solvent abatement

To learn more about the characteristics and efficacy of titanium dioxide photocatalytic filtration, among the many sources available online, we point out the dissertation of Eng Michele Coppa – Polytechnic University of Turin – Chemical and Materials Engineering.

Learn more about how DEPUREX's photocatalytic filters can help you break down volatile organic compounds, odors, indoor pollution, and air emissions.
Picture of Stefano Marini

Stefano Marini

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Depurex progetta e produce filtri fotocatalitici trattati al biossido di titanio per l’abbattimento di composti organici volatili, di cattivi odori e la sanificazione dell’aria da virus e batteri.