First greenGain project workshop took place in Czech Republic
The first workshop of the greenGain project was held on 25 November 2015 in the beautiful landscape of Ždárské vrchy in the Czech Republic’s Highlands Region. The workshop was organised by CZ Biom – Czech Biomass Association as a part of the 20th Conference Biomass, Biogas & Energetics 2015 to take advantage of the broad spectrum of experts and stakeholders attending the event. The greenGain event provided four presentations aimed at different aspects of the utilisation of biomass from landscape conservation and maintenance work. After the presentations participants had the opportunity to visit the near-by biogas plant in Ždár nad Sázavou which among other materials utilizes also biomass from landscape conservation and maintenance work.
The panel was opened by Jan Doležal, project manager at CZ Biom, who introduced the greenGain project, its objectives and activities and the basic rationale for utilization of biomass from landscape conservation and maintenance work (LCMW) for bioenergy. The first presentation was then given by Adam Moravec from CZ Biom who provided the participants with an overview of the policy and legal framework related to the management of biodegradable waste in the Czech Republic on the municipal level and specifically for LCMW.
In the second lecture Iva Zeroníkova, engineer from the waste management company ODAS, presented her business and the reasons behind the construction and operation of its biogas plant in Žďár nad Sázavou. ODAS built the biogas plant in 2010 in order to complement its technologies with the ability to better utilize biodegradable waste. The plant is able to process a broad spectrum of biodegradable waste including LCMW biomass. Later in the afternoon the presentation was accompanied by a field trip to the facility itself.
During the third presentation of the greenGain workshop Miroslav Herout, who is working for the NGO PRO-ODPAD, introduced basic principles and experiences with the utilisation of LCMW biomass via composting in the model region Vltavotýnsko. Kompostárna Jarošovice is a successful composting plant which processes a broad range of biodegradable waste in South Bohemia. It is a very good example of a common way to treat the biomass from landscape conservation, thus the presentation provided an opportunity to discuss various trade-offs and reasons for either material or energy utilisation of LCMW biomass.
The last lecture of the workshop was dedicated to technologies used for processing feedstock originating from maintenance of urban or rural green areas, ranging from grinders and chippers to compost turners. This final part was presented by Jakub Vaňásek from the company Malcom CZ which specialises in merchandising these technologies and equipment on the Czech and Slovak markets.
The workshop provided an opportunity to discuss various issues regarding the utilization of the biomass from LCMW, be it the policy and legislative framework or concrete examples of technologies and value chains which are able to take advantage of this source of biomass. Last but not least, this first workshop introduced the greenGain project to new audiences and possible partners.
Field trip to the biogas plant in Ždár nad Sázavou
After the first part of the greenGain workshop the attendees had the opportunity to visit the biogas plant of the waste management company ODAS in Žďár nad Sázavou. Participants of the field trip were predominantly from the Czech Republic with a couple of foreign guests visiting as well. The total number of participants was around 20 people. The attendees were welcomed by the operator and they were able to visit individual buildings in the area and its technologies.
The biogas plant was built in 2010 primarily as a facility for waste treatment. The plant generates biogas by dry fermentation. It utilizes 13,000 to 18,000 tons of biodegradable waste each year. The installed capacity of the cogeneration unit is 600 kWh. It is able to process a broad range of biodegradable materials, from food waste originating in canteens or supermarkets to residues from agricultural production or agricultural commodities. This biogas plant is also an interesting case with respect to the aim of the greenGain project as it exploits biomass from maintenance of public green areas, such as parks, road sides and waterways. The biogas plant also takes advantage of the output of the biodegradable waste separation in Ždár nad Sázavou and surrounding villages. The output from the biogas plant, electricity and heat, is used through the neighbouring ŽĎAS manufactory (large iron-works and machine plant) on its premises or is sold to other customers.
During the field trip there was also space for discussion among the participants on options how to treat biodegradable waste in general, and LCMW biomass in particular, on the various technologies, legislative, economic and organizational aspects of operating similar facilities. The visit of the biogas plant has been very beneficial thanks to the received information but also due to the practical knowledge shared among the attendees.
Author: Julie Jeřábková, Vojtěch Mráz