engleski

Biological water treatment - simultanous removal of thiosalts and nitrogen compounds

The reduction of nitrogen compounds and thiosalts in mining industry is extremely important for sustainable management of ecosystem and human health. The goal of the present thesis was to assemble and test a pilot water treatment plant for simultaneous removal of nitrogen and thiosalts compounds at Boliden Mineral AB in Boliden, Sweden. This pilot project is important part of Boliden Mineral AB environmental policy to constantly improve environmental performances of mineral processing. The work is undertaken at Boliden in period February 25 – August 15, 2019. In first three months of work the pilot plant was assembled, followed by the plant testing from June 14 to July 27 (in total 24 work days of testing). With this work removal is achieved partly. Nitrogen compounds are removing more than thiosalts. Thesis will state problems and solutions for better removal of these compounds

nitrogen ; thiosalts ; denitrification ; oxidation ; chemolithotropical denitrification ; pilot

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