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Microbial enzymes for treatment of non-recycled plastic fraction

ENZYCLE

The ENZYCLE project (2020-2024), funded by the Bio-based Industries Joint Undertaking (BBI-JU) under the European Union's Horizon 2020 programme and coordinated by ITENE, aims to valorise and upgrade non-recycled plastic fraction through enzymatic processes to obtain high value-added products and new polymers.
Source of funds:
European
Scopes: Packaging;Waste, energy and water
Lines research: Sustainability

Period of implementation

June 2020 – May 2024

Context

Plastic waste that is not reintroduced into the production cycle is a significant and increasing problem for the EU. In 2017, more than 27 million tonnes of plastic waste were produced in the EU28, the equivalent of more than 50 kg per citizen. However, less than one-third of this is recycled; the rest is either incinerated or sent to landfill.

Clearly, with the EU’s ambitions for a circular economy, and its stated strategy of achieving 100 % of plastic packaging as recyclable or reusable by 2030, this is challenging. It is therefore essential to find new advanced processes to recycle the fraction that is currently not recycled, particularly those plastics used for packaging –such as those PET based clamshells (polyethene terephthalate)– or those plastics found as microplastics.

Biotechnology is an evolving and dynamic industry which is playing important roles in economics, health, and the environment. New biotechnological processes are being developed to mitigate the effects of plastic pollution in sensitive environments by inserting plastics into the so-called circular economy where materials are valorised and reused after the end life of a product. These processes greatly benefit the environment and create business opportunities in the waste recovery sector.
 

Summary and objectives

The ENZYCLE project, funded by the Bio-based Industries Joint Undertaking (BBI JU) under the European Union’s Horizon 2020 program, will develop new processes to recycle enzymatically currently non-recyclable plastics such as PET trays and clamshells and PET/PE-PP multilayer packaging. For this reason, enzymes with a high hydrolytic activity on polyesters and on polyolefins will be identified and improved to establish efficient recycling processes. Additionally, ENZYCLE will deal with microplastics, developing a microplastic degrading system (MDS) capable of mitigating the negative impact on the environment and human health.

This ambitious 48-month project brings together 2 top research universities, 3 research centres, 3 innovative SMEs and 5 large industries which are currently developing revolutionary enzymatic processes with the ambition to solve worldwide end of life plastic issues. ENZYCLE´s experts will select a set of appropriate enzymes that have the potential to degrade non-recycled plastic fractions such as polyesters and polyolefins, and produce these enzymes in a very innovative and efficient process (continuous process) and validate them for the new recycling processes developed. The enzymatic treatment will deliver building blocks and polymers that could be reused in new products such as virgin PET, polyurethane foam, or polyols.

ENZYCLE will follow 4 phases, related to the different stages of development of the technology:

Identification and selection of novel enzymes

Production of these enzymes at pilot scale.

Development of an efficient enzymatic depolymerisation process to depolymerise the different plastic fractions such a as PET, PE and PP multilayer packaging, and microplastics.

Validation of the  enzymatic recycling processes at pilot scale and products obtained.

The new technologies and solutions will decrease the amount of non-biodegradable polymers sent to landfill. In addition, it will help deal with the issue of microplastics in wastewater by using the developed technology to degrade these contaminants. ENZYCLE is a chance for creating new markets, since the envisaged products and processes are applicable in packaging, transport, construction materials, textiles, etc. In addition, the project enlarges the range of feedstocks that can be effectively and sustainably processed through biocatalytic systems.
 

Consortium

A consortium of 13 partners from 6 European countries has been set up to reach the objectives abovementioned:

1.            INSTITUTO TECNOLÓGICO DEL EMBALAJE, TRANSPORTE Y LOGÍSTICA (Spain)

2.            UNIVERSITAET LEIPZIG (Germany)

3.            STICHTING WAGENINGEN RESEARCH (Netherlands)

4.            UNIVERSITAET FUER BODENKULTUR WIEN (Austria)

5.            ACIB GmbH (Austria)

6.            DARWIN BIOPROSPECTING EXCELLENCE SOCIEDAD LIMITADA (Spain)

7.            ASA SPEZIALENZYME GMBH (Germany)

8.            FEYECON DEVELOPMENT & IMPLEMENTATION BV (Netherlands)

9.            DEPURACION DE AGUAS DE MEDITERRANEO SL (Spain)

10.          SOPREMA (France)

11.          GREINER PACKAGING INTERNATIONAL GMBH (Austria)

12.          ALIPLAST SPA (Italy)

13.          Indorama Ventures Europe B.V. (Netherlands)

 

ITENE´s role in ENZYCLE

ENZYCLE project is organized in 10 work packages (WP), and ITENE is the Project Coordinator.

ITENE will work together with the project partners on identifying fossil-based polymer-degrading enzymes, especially for polyolefins. ITENE will also develop pre-treatment processes to optimise and improve the efficiency of the depolymerization process, especially regarding multilayer packaging . In addition, they will also contribute to the develop and validate the depolymerisation processes at a pilot scale.

ITENE will be involved in the development of new processes to face microplastic pollution in wastewater treatment plants by anaerobic digestion and by composting. ITENE will participate in the dissemination and transfer of knowledge of the results of the project and in the assessment of the sustainability under the perspective of Life Cycle Assessment of the new recycled materials. As coordinator, a part of our technical role, will maintain contact with the European Union Commission and will be responsible for monitoring the correct implementation of the project plan and taking appropriate measures to correct any deviations that may occur, as well as for the efficient financial management of the entire project.

 

More information

https://www.enzycle.eu

 

Funding

This project has received funding from the Bio-based Industries Joint Undertaking (BBI JU) and the European Union’s Horizon 2020 programme under grant agreement nº887913.

Composición BBI