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MINIMAN – Solutions for Control of Nitrogen<br />
Discharges at Mines and Quarries<br />
NEEDS<br />
• Better understanding of the behaviour of<br />
nitrogen compounds<br />
• Minimizing of nitrogen transport<br />
• Removal of N-compounds from mine waters<br />
APPROACH<br />
• Analysis of sources, behaviour and management<br />
opportunities of nitrogen compounds<br />
• Biological reactor process and electrochemical<br />
/adsorption process for nitrogen removal<br />
BENEFITS<br />
• Knowledge, tools and technological solutions<br />
for nitrogen control at mines<br />
• Users: Technology companies, mines, consults,<br />
authorities, other stakeholders<br />
COMPETITION<br />
• Non-nitrogen explosives/explosion techniques (not in near future)<br />
• Use of membrane solutions for water treatment<br />
Challenges<br />
• Behaviour and release of nitrogen<br />
compounds from waste rock and<br />
tailings<br />
• Water: Relatively low (NO 3- ,<br />
NH 4+ ) concentrations, high<br />
volumes, high ionic<br />
concentrations, Nordic conditions
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