WASTE TO ENERGY
Nature, citizens and each of the founder’s operations benefi t equally from the jointly founded company, TEAtherm. It all started with an insolvent combined heat and power station (CHP) run on biomass with a thermal sewage sludge recycling plant. T e fi ve shareholders with synergistic skills in the areas of waste management, recycling, and electricity generation purchased it in equal shares. T e newly founded TEAtherm
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BAVARIAN BIOMASS BOOST
Biomass CHP combined with pioneering sewage sludge drying proves success in novel project
n Dinkelsbühl, Bavaria, fi ve entrepreneurs developed a concept that combines local added value and sustainability in an exemplary way.
began operations in April 2013 and now produces 64,000MW hours of green energy, which supplies around one third of households in the district. T e economic highlight of the concept, however, is the use of the heat generated as a by-product of electricity generation. T e largest consumer is one of the shareholders, a state-of-the-art plant nursery, which uses it to heat its 10 hectare greenhouse adjacent to the power station. In addition, some of the heat is fed into the district heating network of Dinkelsbühl municipal services to supply fi rms in the Waldeck industrial zone, houses and a hotel complex. A further portion of the heat is used in the company’s own belt dryer for drying municipal sewage sludge from around 40 diff erent sewage plants. A major
contributor to the great effi ciency of the sewage sludge drying plant is the 5099 PPC process belt from the GKD Group that’s used in the dryer. It was replaced for the fi rst time after a service life of seven years and the TEAtherm team was trained in fi tting the belt. With an output power of 8MW the
power station generates electricity for 8,200 hours per year - which corresponds to an availability of 93%. T e only fuel used is wood from rural conservation – i.e. wood that is not intended for use in the construction trade or for furniture. T is material, which is generated during clearing in the maintenance of highways, electrical power lines, or railroad lines, for example, is subject to strict quality management with certifi ed proof of origin at TEAtherm. Quality control of every
Wood is used as the only fuel 42
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