Immobilization of arsenic and iron from acid drainage waters by using reagent. / Saeva, Olga; Abrosimova, Natalya; Yurkevich, Nataliya et al.
In: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, Vol. 17, No. 43, 01.01.2017, p. 83-90.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Immobilization of arsenic and iron from acid drainage waters by using reagent
AU - Saeva, Olga
AU - Abrosimova, Natalya
AU - Yurkevich, Nataliya
AU - Bortnikova, Svetlana
AU - Kuleshova, Tatyana
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In the paper the precipitation of arsenic and iron from an acid drainage water of the Berikul mine wastes by using lime milk, NaOH, and Na 2 S were studied. The wastes were stored in the southern part of the Komsomolsk tailings impoundment, near the Komsomolsk settlement (Kemerovo region, Russia). The interaction of natural waters with the wastes produced ultra-acid drainage with a pH of about 2, with arsenic content of 1.3 g/l and iron-6.5 g/l. The results of in situ experiments showed that adding lime milk and sodium hydroxide to drainage increases pH and entails precipitation of iron hydroxides and co-precipitated arsenic. The adding of Na 2 S changes Eh of the solution and recovers of arsenic and iron. In the mineralogical composition of the newly formed mineral phases gypsum, sulfur, kaatialaite, arsenosiderite Ca 3 Fe 4 (AsO 4 )(OH) 6 ×3H 2 O, were found. The study was set the most optimal ratio of reagents by which the arsenic concentration decreased to 0.11 mg/L and iron up to 3.0 mg/L.
AB - In the paper the precipitation of arsenic and iron from an acid drainage water of the Berikul mine wastes by using lime milk, NaOH, and Na 2 S were studied. The wastes were stored in the southern part of the Komsomolsk tailings impoundment, near the Komsomolsk settlement (Kemerovo region, Russia). The interaction of natural waters with the wastes produced ultra-acid drainage with a pH of about 2, with arsenic content of 1.3 g/l and iron-6.5 g/l. The results of in situ experiments showed that adding lime milk and sodium hydroxide to drainage increases pH and entails precipitation of iron hydroxides and co-precipitated arsenic. The adding of Na 2 S changes Eh of the solution and recovers of arsenic and iron. In the mineralogical composition of the newly formed mineral phases gypsum, sulfur, kaatialaite, arsenosiderite Ca 3 Fe 4 (AsO 4 )(OH) 6 ×3H 2 O, were found. The study was set the most optimal ratio of reagents by which the arsenic concentration decreased to 0.11 mg/L and iron up to 3.0 mg/L.
KW - Acid mine drainage
KW - Arsenic
KW - Ferrous sulfates
KW - Iron
KW - Lime milk
KW - Mine tailings
KW - Sodium sulfide
UR - http://www.scopus.com/inward/record.url?scp=85063092766&partnerID=8YFLogxK
U2 - 10.5593/sgem2017H/43/S18.011
DO - 10.5593/sgem2017H/43/S18.011
M3 - Conference article
AN - SCOPUS:85063092766
VL - 17
SP - 83
EP - 90
JO - International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
JF - International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SN - 1314-2704
IS - 43
T2 - 17th International Multidisciplinary Scientific Geoconference, SGEM 2017
Y2 - 27 November 2017 through 29 November 2017
ER -
ID: 18900152