Stefanie Scheidl, Technical and Project Officer, European Biogas Association
Stefanie Scheidl joined the European Biogas Association in April 2016 as Technical and Project Officer. EBA is a non-profit organisation aiming to promote the deployment of sustainable biogas and biomethane production and use in Europe, coming from anaerobic digestion and biomass gasification. The network unites the most experienced biogas and biomethane experts from 26 countries across Europe.
Within EBA, she is responsible for EU-projects and works on statistics and market analyses on European and national level. She coordinates activities of the Company and the Scientific Advisory Council.
Previously, she worked in research and project management in anaerobic digestion at BOKU University for Natural Resources and Life Sciences, Vienna. She was involved in the organisation of two major biogas conferences (ADSW&EC 2011 and Biogas Science 2014). Stefanie Scheidl holds a Master’s degree in Biotechnical Processes focusing on Environmental Biotechnology and the qualification Junior Project Manager.
Biogas Production of Active Sludge in Wastewater Treatment Plants
Growing population and expanding industry lead to increasing amounts of waste water and thus sewage sludge but industry and municipalities are increasingly well-served by waste-water treatment plants (WWTP). Sewage sludge treatment is highly complex and costly. Improper disposal of sewage sludge can also provoke major environmental consequences (environmental pollution, landslide, etc). Very often waste water treatment lies in the responsibilities of municipalities which have to bear the costs.
Anaerobic digestion (AD) is a well-established technology for sewage sludge treatment as 10,000 digesters are already implemented at waste water treatment plants (WWTP). The number of biogas plants in Europe increased to 17,376 in 2015 (+3%). Sewage sludge is the second most-used feedstock of biogas production in Europe representing 16%.
In Europe, AD in WWTP helps fulfilling the goals of the Renewable Energy Directive (2009/28/EC), the Sewage Sludge Directive (86/278/EEC) and the Landfill Directive (99/31/EC). AD of sewage sludge presents multiple advantages: energy generation (additional income for operators of WWTP), sewage sludge stabilisation (less pathogens, weeds, biological activity and odours), reduced dry matter content (reduced dried sludge volume and improved dewatering efficiency) and an improved fertilisation capacity of the resulting sludge.
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