Scotland's National Farmers Union has issued a warning to farmers discouraging use of human waste cakes for fertiliser. The union argues the Scottish whisky industry will not accept crop grown on land that uses this type of fertiliser. Some farmers have started using the thermal hydrolysis cakes because of its substantially lower price of £2.45 ($3.43) per metric tonne in comparison to artificial fertilisers which can cost up to £250 per mt, while others appreciate the environmentally sustainable quality of it. But some say it is too expensive and does not work as well as conventional methods.
Scotland's National Farmers Union has issued a warning to farmers discouraging use of human waste cakes for fertiliser. The union argues the Scottish whisky industry will not accept crop grown on land that uses this type of fertiliser. Some farmers have started using the thermal hydrolysis cakes because of its substantially lower price of £2.45 ($3.43) per metric tonne in comparison to artificial fertilisers which can cost up to £250 per mt, while others appreciate the environmentally sustainable quality of it. The organic matter is a by-product of sludge processed at Scottish Water's Seafield treatment site.