Tenderers shall deliver ethanol that fulfils the following requirements: The carbon source must be able to be used as a business for bacteriological water purification (MBBR), i.e. it cannot contain poisons for biology; c.f. any denaturing agents. The minimum allowed concentration target of the delivered ethanol is 95%. The carbon source must be clear, colourless fluid, free of particles and impurities. Tenderers shall document the quality with a safety data sheet (SDS) and an analysis certificate for each delivery. The expected consumption in the first year will be significantly lower with more occasional needs due to the start-up phase of the biological treatment facility with the accompanying start-up curve. The first delivery in accordance with further agreement ila. July/August.