WELTEC BIOPOWER, together with PreZero and Enagás Renovable, have begun the construction of a biomethane plant north of Madrid which will generate up to 60 gigawatt-hours of green energy annually, equivalent to the energy requirements of approximately 11,700 households or 30,000 residents.
The new facility will process up to 75,000 tonnes of organic waste annually. This will include separately collected household biowaste from the brown bin in Colmenar Viejo and surrounding municipalities. Organic material currently accounts for around 40 per cent of household waste by weight in the region. Instead of being sent to land ll, these valuable resources will be used to produce renewable biomethane.
At the heart of the plant in Colmenar Viejo are three stainless-steel digesters from WELTEC BIOPOWER, each measuring 25.34 metres in diameter and 10.05 metres in height, with a volume of 5,067 cubic metres. The tall tank design enables a high substrate throughput within a small footprint, thereby contributing significantly to the efficient use of the approximately 6,200-square-metre site.
A gas-tight pre-storage tank with a capacity of 1,177 cubic metres is situated upstream of the digestion process. It ensures a continuous supply of substrate and stable process conditions. Hygienisation ensures compliance with the statutory requirements governing the treatment of organic waste streams.
All biogas digesters and storage tanks are made of high-quality stainless steel and manufactured by WELTEC BIOPOWER using its tried-and-tested modular construction system. The components are industrially prefabri- cated and assembled on site, ensuring a consistently high level of production quality. The modular approach also enables efficient logistics and flexible scalability.
“Stainless steel is particularly resistant to corrosion under the demanding biological and chemical conditions found in the digestion process. This gives the plant a long service life, high operational reliability and low maintenance requirements,” emphasises Alain Priser, International Sales Manager at WELTEC BIOPOWER.
Learn more www.weltec-biopower.com
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