LIFE DeNTreat - Decentralized innovative treatment of ammonium-rich urban wastewater

LIFE16 ENV/IT/000345

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Contact details:

Contact person: Giovanni Bergna
Tel: 39031920518
Fax: 39031921880
Email: giovannibergna@lariana.it

Project description:


The Urban Waste Water Treatment Directive encourages the installation of wastewater collection systems and treatment plants for all urban wastewaters (covering both domestic and industrial sewerage). Over the past 15 years, Digital Textile Printing (DTP) technology has been gaining popularity around the textile manufacturing districts, with around a quarter of the European textile printing industry, on average, currently using it. For manufacturers in the Como district and in Portugal, the figures are 60% and 20%, respectively. Even if it is cheaper and technically better than traditional printing, DTP is considered responsible for an increase of more than 200% of nitrogen in wastewaters, resulting in an increase in treatment costs as well as in N2O emissions and sludge volumes. This situation has made it impossible for some traditional wastewater treatment plants to be compliant with environmental regulations.


LIFE DeNTreat aims to demonstrate innovative decentralised wastewater pre-treatment modules, based on the Anammox (ANaerobic AMMonium Oxidation) microbial process, and to show that this technology can sustainably reduce nitrogen pollutants linked to discharges from the textile industry, hence reducing the nitrogen content of urban wastewaters.

The specific project objectives are to:

  • Obtain a residual nitrogen content below 100 mg/l in the wastewater released in the collection system;
  • Comply with the requirements of Article V of the Urban Waste Water Treatment Directive by ensuring that the minimum percentage of reduction of the overall load entering all urban WWTP is at least 75% of the total nitrogen produced;
  • Ensure that residual nitrogen concentration in WWTP discharges are maintained below 10 mg/l;
  • Save up to 40% on investments and operational costs;
  • Reduce by 20% N2O emissions during biological wastewater treatment, compared to traditional technologies; and
  • Reduce by 25% the sludge produced as a result of the nitrogen reduction process.
  • LIFE DeNTreat is expected to help with compliance to a set of EU policies such as the Urban Waste Water Treatment Directive, which requires urban wastewater collecting systems reduce overall load in sensitive areas of total nitrogen by at least 75%. Thanks to LIFE DeNTreat technologies, such requirements can be met more easily. Furthermore, the project will contribute to the implementation of the Industrial Emissions Directive, which aims to minimise pollution from various industrial sources throughout the EU.

    Expected results: The DeNTreat project aims to achieve the following results:

  • A pre-industrial wastewater treatment plant based on an Anammox bioreactor, processing 40 m3/day of wastewater;
  • A laboratory-scale pilot unit, based on the same technology, intended as a ‘portable clinic’ to quickly test different wastewater samples and provide preliminary indications on the applicability of the DeNTreat technology to selected wastewater generators;
  • An abatement of the nitrogen released in the collection systems from the addressed industrial sources to less than 100 mg/l;
  • A comprehensive impact monitoring report, including environmental, social and economic indicators; and
  • An after-LIFE DeNTreat implementation plan aimed at facilitating the adoption of the technology in every European textile district.



Environmental issues addressed:


Water - Waste water treatment
Industry-Production - Textiles - Clothing


waste water treatment‚  textile industry‚  industrial pollution‚  clothing industry

Target EU Legislation

  • Water
  • Directive 91/271 - Urban waste water treatment (21.05.1991)
  • Industry and Product Policy
  • Directive 2010/75 - Industrial emissions (integrated pollution prevention and control) (24.11.201 ...

Natura 2000 sites

Not applicable



Coordinator LARIANA DEPUR S.p.A.
Type of organisation Large enterprise
Description Lariana Depur SpA is a consortium of private companies (textile dyeing and printing factories) located in the textile district of Como (Italy). It is responsible for the management of two wastewater treatment plants, which treat domestic and industrial wastewater, with a total capacity of 30 000 m3/day. It also provides consulting and design services for wastewater treatment plants, experimental investigations of new wastewater treatment techniques, and surveys and feasibility studies aimed at reducing emissions from the textile industry.
Partners CENTRO TECNOLOGICO DAS INDUSTRIAS TEXTIL E DO VESTUARIO DE PORTUGAL, Portugal Stamperia di Cassina Rizzardi S.p.A., Italy European Apparel and Textile Confederation, Belgium Politecnico di Milano, Italy


Project reference LIFE16 ENV/IT/000345
Duration 01-JUL-2017 to 30-JUN -2020
Total budget 1,391,893.00 €
EU contribution 835,133.00 €
Project location Bruxelles-Brussel(België - Belgique) Lombardia(Italia) Norte(Portugal)


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Project description   Environmental issues   Beneficiaries   Administrative data   Read more   Print   PDF version