Treatment of metal ions and metal–chelate complexes in water with biologically produced H2S
2012 (English)In: International Journal of Environment and Waste Management, ISSN 1478-9868, Vol. 9, no 3/4, 330-346 p.Article in journal (Refereed) Published
The possibility to precipitate Pb and Cu as metal sulphides has been investigated. The metals are present as metal chelates, a situation that will appear after soil washing for remediation of polluted soil. Sulphide for the precipitation step is obtained via a bioreactor containing Sulphate-Reducing Bacteria (SRB). The effects on the precipitation process for copper and lead were studied in the presence of four different chelating substances (EDTA, NTA, CDTA, DTPA), with a precipitation of more than 98% for both Pb2+ and Cu2+. The results clearly indicate that chelate washing and the subsequent precipitation is a viable technology.
Place, publisher, year, edition, pages
InderScience Publishers, 2012. Vol. 9, no 3/4, 330-346 p.
metal ions, chelator, SRB, sulphate-reducing bacteria, precipitation, remediation, CDTA, DTPA, EDTA, NTA
IdentifiersURN: urn:nbn:se:umu:diva-50549OAI: oai:DiVA.org:umu-50549DiVA: diva2:464594