Acidic Condensate
Condensing Boilers Emit Harmful Acid
Following the UK Government’s acceptance of the Kyoto protocols, carbon emission reductions of 20% by 2010 are a legislatively backed target that is affecting us all. To help achieve this, condensing boilers and water heaters have been introduced to reduce CO2 output. These reduce fuel used by up to 30%. These units have one disadvantage - the “condensate” is a pH 4, harmful acid.
The typical small commercial condensing boiler produces 4,000 litres (4 tonnes) of condensate annually. With 25,000 commercial installations in 2006, this will add 100,000+ tonnes of acid into our-sewers. Domestic boilers add about 800 Litres each per year, putting 1.25 million tonnes to the sewers.
The condensate disposal figure estimates increasing to 500,000 litres (about 500 tonnes) per week. The environmental consequences are huge. Since 1991 in the U.K. The Water Resources Act require trade effluent be discharged within parameters set out by the water authority, a pH level of between 6-11.
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