Profile: Biorefinery Glas - Small-scale farmer-led green biorefineries





Type of post: PROJECT PROFILE.

Beginning in 2019, a new EIP-Agri project focused on small-scale green biorefining will illuminate the way of the rural bioeconomy in Ireland. It is not the first time that the Blog features an initiative of this European Innovation Partnership (EIP), which is aimed at promoting the sustainable and productive agriculture providing an interface between agriculture, bioeconomy, science and other users. Let us know the highlights of this promising project.

Key data

Title
Biorefinery Glas
Activities
- Demonstrate a small-scale mobile biorefinery on multiple farms in the South West of Ireland, supporting farmers in evaluating opportunities to diversify into the bioeconomy.
- Ensure that each component of grass is used at its highest value, with the simultaneous generation of multiple products.
- Promote farm-to-farm symbiosis and cooperation.
- Facilitate several knowledge exchange activities, including training of farmers on the operation of small-scale biorefineries.
- Deliver dissemination package with farmers playing a central role, sharing this experiences with other farmers and relevant multi-actors through a digital storytelling initiative.
Leader
- Institute of Technology, Tralee (ITT): a higher education and research institute in the South West of Ireland, leading research in bioresouces and natural products
Partners
- Barryroe co-operative: farmer owned multi-purpose agribusiness.
- Carbery Group: is a leading global manufacturer of specialty and nutritional dairy ingredients as well as flavours and cheeses.
- GRASSA B.V.: green biorefinery technology developer.
- University College Dublin (UCD): one of Europe's leading research-intensive universities in agriculture and bioeconomy.
Budget
940.948 €.
It is co-funded by the Irish Department of Agriculture, Food and Marine (Rural Development Programme 2014-2020) and the EU.
Duration
2 years.

Figure 1. Small-scale biorefining system of Grassa! (courtesy of Grassa!)

The biorefinery model and the products

The process is one that integrates well within existing agriculture system, producing a press-cake feed that is high in resistant protein (nondigested protein) for cattle, while also generating additional high value co-products that can represent an additional revenue source for farmers. The model has a processing capacity of 2 tons fresh grass per hour.

Proteins
Firstly, the proteins that cows use most effectively are isolated from the grass, while separating the remainder of the protein for use as a concentrate feed for pigs or chickens. This approach improves the efficiency of nitrogen use for milk production and allows to provide pigs and chickens with grass protein, an indigenous source of protein concentrate. An expected benefit of improving the nitrogen use efficiency for milk, includes a potential reduction in nitrogen loses and ammonia-related emissions for the dairy (and potentially beef) sector, while indirect emissions from soybean monogastric imports can also be displaced. 

Fructo-oligosaccharides
An additional value-added co-product in fructo-oligosaccharides (prebiotic sugars) will be extracted from the deproteinized grass whey. It has potential applications for the human and animal nutritional markets.

Fertilizer / Biomethane
Finally, once the relevant products are extracted, large volumes of nutrient-rich whey can be used as a fertilizer or as a co-substrate for biomethane production through anaerobic digestion.

The impacts

The Biorefinery Glas project will promote farm-to-farm bioeconomy symbiosis and demonstrate new business models for farmers. The project builds on a strong existing co-operative structure to evaluate new routes to market for cattle farmers, generating additional co-products using small-scale bioeconomy technologies. For example, using co-op partners to upgrade the protein co-product into a finished and marketable compound feed for chickens and pigs.

The biorefinery includes automated features to make eventual uptake by farmers and contractors possible. In this way, it is expected that the project will begin to change the role of farmers within the bioeconomy, making them biomass processors and producers, rather than simply biomass suppliers.

The need to improve integration of farmers within the bioeconomy using small-to-medium biobased solutions is recognised within the 2018 EU Bioeconomy Strategy update. Biorefinery Glas represents Ireland's first farm-scale biorefinery project.

Acknowledgements: I would like to express my appreciation to James Gaffey of Institute of Technology, Tralee (Project Coordinator) for his kind collaboration.

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