Publication Details

Reference Category Journals
DOI / URL link
Document Shareable Link
Title (Primary) Bioleaching of heavy metal-contaminated sediments by indigenous Thiobacillus spp: metal solubilization and sulfur oxidation in the presence of surfactants
Author Seidel, H.; Ondruschka, J.; Morgenstern, P.; Wennrich, R.; Hoffmann, P.;
Journal Applied Microbiology and Biotechnology
Year 2000
Department UBT; ANA; UBZ; SANA; SAN;
Volume 54
Issue 6
Language englisch;
Abstract The efficiency of surfactant application to improve or inhibit metal solubilization and sulfur oxidation kinetics during the bioleaching of heavy metal-contaminated sediments was studied in suspension-leaching experiments. The river sediment used contained large amounts of fine particles and organic matter. Three types of surfactants were tested: sodium dodecylsulfate (SDS), a C12/14-alkanolethoxylate (Präwozell F1214/5N), and a wettable sulfur (Netz- schwefel 80 WP). Adding 10 mmol SDS/l led to transient inhibition of acidification, metal solubilization and sulfur oxidation. Inhibiting bioleaching for just 14 days required about ten times more SDS than the amount used for mine waste mitigation. The use of Präwozell resulted in poor inhibition; and using of wettable sulfur did not improve leaching efficiency. The bulk of these surfactants was sorbed onto the solid particles immediately on application, while the remainder in the aqueous phase disappeared within a few days.
ID 7648
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=7648
Seidel, H., Ondruschka, J., Morgenstern, P., Wennrich, R., Hoffmann, P. (2000):
Bioleaching of heavy metal-contaminated sediments by indigenous Thiobacillus spp: metal solubilization and sulfur oxidation in the presence of surfactants
Appl. Microbiol. Biotechnol. 54 (6), 854 - 857