External carbon addition for enhancing denitrification modifies bacterial community composition and affects CH 4 and N 2 O production in sub-arctic mining pond sediments.

• Published in: Water Research
• Main Authors: Hellman, M., Bonilla-Rosso, G., Widerlund, A., Juhanson, J., Hallin, S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2019
• Subjects: Algae; Clarification pond; Greenhouse gases; Nitrate removal; Tailings pond; Water treatment; Arctic; Two Ponds
• Online Access: https://serval.unil.ch/notice/serval:BIB_7195BE4A5C26; https://doi.org/10.1016/j.watres.2019.04.007

Explosives used in mining operations release reactive nitrogen (N) that discharge into surrounding waters. Existing pond systems at mine sites could be used for N removal through denitrification and we investigated capacity in tailings and clarification pond sediments at an iron-ore mine site. Despi...