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Treatment of Acidic and Neutral Metal-Laden Mine Waters with Bone Meal Filters
Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kopparberg, Sweden. (Man-Technology-Environment Research Centre)ORCID-id: 0000-0001-9348-6481
Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kopparberg, Sweden.ORCID-id: 0000-0002-2674-4994
2013 (Engelska)Ingår i: Mine Water and the Environment, ISSN 1025-9112, E-ISSN 1616-1068, Vol. 32, nr 4, s. 293-301Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Bone meal was used to treat two different mine waters: acidic (pH 4.5) mine water containing high concentrations of Fe and Al and neutral/slightly alkaline (pH 7) mine water. Original primary contaminants in both waters were Pb and Zn. The contaminants were dissolved in the acidic mine water and mostly suspended in the neutral mine water. Flow through the filter treating the acidic mine water was relatively low (0.1 L/min), but increased towards the end of the test period. Removal of Pb and Cu was very good in the acidic mine water (around 80 %); removal of Zn was slightly less (60 %) due to the final pH (approximate to 6-6.5). Flow through the filter treating the neutral mine water was initially significantly higher (5 L/min) and the removal of Pb and Zn was less compared to the acidic mine water (50 % for Pb and 35 % for Zn). The major reason for the difference in metal removal in the two mine waters was the difference in Fe and Al sorption sites, flow rate, and pH; in order for the bone meal to dissolve and form metal phosphate, the pH has to be <7.

Ort, förlag, år, upplaga, sidor
2013. Vol. 32, nr 4, s. 293-301
Nyckelord [en]
Sweden, Remediation, Lead, Zinc, Phosphate
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:oru:diva-32914DOI: 10.1007/s10230-013-0248-2ISI: 000328080600007OAI: oai:DiVA.org:oru-32914DiVA, id: diva2:683235
Tillgänglig från: 2014-01-03 Skapad: 2014-01-03 Senast uppdaterad: 2019-03-26Bibliografiskt granskad

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Sartz, LottaBäckström, Mattias

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