Menu
Menu
Displacement of fossil based products with bio-based alternatives, while offering rural diversification opportunities for farmers
The biorefinery processes grass silage into a variety of alternative bio-based products including bio-composites, bio-based insulation material, bio-fertiliser and biogas
The BIOWERT facility is operational since 2007. 20,000 tonnes of grass is supplied per year from 7 farms within a 13 km radius. The plant has a throughput of 2,000 tdm/a. Grass is stored within bunker silos, and ensiled. Grass is then mechanical processed to isolate grass fibres through pulping, drying and pressing processes. The fibres are further processed into AgriCellBW and AgriPlastBW synthetic granules. AgriPlastBM contains 30 – 50% grass fibres and 50–70% recycled polyolefine and is used for injection moulding for a range of uses such as re-inforced products and decking.The grass juice remaining the process is used as substrate in the biogas plant (together with local co-substrates such as food waste and slurry), supplying energy for the process, with excess energy supplied to the grid. Digestate from the biogas plant is further processed to a concentrated and a liquid biofertilizer (AgriFerBW) used by local farmers, closing the nturient cycle.
Relatively high sale prices of material products (AgriPlastBW and AgriCellBW) as well as the integration of two product options (insulation or bioplastic) allows flexibility to market changes. These are key factors for successful concept implementation. Rising electricity prices make future energy use from the biorefineryassociated biogas plant even more attractive. Strengthens market for injection moulding companies in the region, which buy bio-granulate and produce bioplastics.
Operates using circular economy principles. The heat and electricity derived from the biogas facility is adequate to satisfy the energy in the biorefinery and excess electricity is exported to the electricity grid.The biogas facility takes in food waste, slurries in addition to biorefinery process waste. Wastewater arising from the process is reused for pretreatment (slurrying) of grass silage. Products produced, displacing part of the fossil content of plastic granuales with a bio-based alternative. Digestate from the biogas unit is supplied to local farmers replacing mineral fertilisers.
Provides income diversification for supplier famers. Providers winter alternative work source for farmers in retrofitting homes with produced insulation materials. Bring more sustainable sources of products and energy to the consumer market
Primary producers, Technology developer, Operators/technicians, reseachers, Injection moulding companies, Eco-Insulation suppliers, Gas grid opertors
Grass silage
9
Biowert
Ensiling, Mechanical disintegration, fibre upgrading followed by Anaerobic digestion
Bio-composites, Bio-based Insulation Material, Bio-Fertiliser, Biogas (heat, electricity)
8000 tonne/year
Brensbach, Germany
2007
Subscribe to our newsletter for news updates…
Consortium
Subscribe to our newsletter for news updates…
Consortium
© InformBio • All Rights Reserved • Privacy Policy • Site by Bright Idea
© InformBio • All Rights Reserved
Privacy Policy • Site by Bright Idea