Sustainable use of sewage sludge from the dairy industry

Odpadno blato, ki nastane pri čiščenju odpadnih voda iz mlečno predelovalne industrije ima potencial, da iz odpadka nastane surovina z dodano vrednostjo. Na podlagi evropske in slovenske zakonodaje uredbe o odpadkih lahko odpadek izgubi status odpadka, ko se reciklira ali drugače predela. Možnosti ponovne uporabe odpadnega blata so v kmetijstvu (gnojilo), za namene kompostiranja in proizvodnji bioplina, kot dodatek h krmi (ni dovoljeno), energetska izraba s sežigom. Vsem možnostim je skupno, da odpadno blato ne sme presegati mejnih dovoljenih vrednosti težkih kovin. Po pregledu zakonodaje je možnost, da odpadno blato izgubi status odpadka in se uporablja v namene kompostiranja in bioplina.Waste sludge from waste water treatment of the dairy industry has the potential to produce added value raw material from waste sludge. Based on European and Slovenian legislation of the waste regulation, waste may lose its waste status under certain when it is recycled or recovered otherwise. The possibilities of using waste sludge are in agriculture (fertilizer), for the possibility of composting purposes and biogas production, as a supplement to animal nutrition (not allowed), energy recovery by incineration. All possibilities have in common that waste sludge should not exceed the limit values for heavy metals. After reviewing the legislation, there is a possibility that waste sludge will lose its waste status and can be used for composting and biogas purposes