Germany supplement biomass

Weltec to build biogas park

1 January 2010

Using farming manure and waste products to generate biogas for heating and power, while re-using the residue as fertiliser, creates an almost perfect circle of sustainability.

In the second quarter of 2010 WELtec BioPower, the specialist biogas developer, will start building, on a turnkey basis, one of Europe‘s largest biogas plants. It is to be built in Arneburg, in the Stendal district of Saxony-Anhalt, and will represent a total investment of approximately r21 million. Starting in February 2011, more than 350 million cubic feet of biomethane (around 40 000 cubic feet/hour) will be produced every year in six fermenters, four digestate storage units, and one liquid reservoir, and will be fed into the natural gas grid. Vechta-based WELtec BioPower is the general contractor, while NordMethan Produktion Arneburg GmbH is the investor and operator.

The biogas ‘park’, which will be erected on a 10-hectare (25-acre) site, will use manure and a range of other renewable materials from the farms of 30 farmers who will need to travel no more than 9.3 miles, on average, to deliver the raw material. Moreover, the digestate accumulating at the plant will be recycled by farmers as fertiliser.

The biogas will undergo chemical treatment (amine treatment) to ensure high methane quality. The generated product will be sufficient to supply 7000 households with electricity and heat.

As the hydrogen sulphide and ammonia compounds contained in biogas corrode unprotected parts, WELtec will be installing stainless steel fermenters to ensure a long useful life for the plant. WELtec plants are characterised by a modular structure, which enables an individual and flexible approach resulting in the creation of a range of facilities from small compact units to large MW sized computer-controlled plants, as well as gas processing technology and waste recycling facilities.

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