Fate of heavy metals in Colorado waters and rivers Brennan, E. W. ; Lindsay, Willard Lyman, 1926- Water quality -- Colorado Heavy metals -- Environmental aspects Acid mine drainage -- Environmental aspects Wetland ecology -- Colorado "December 15, 1992" "Completion Report No. 168" "Grant No. 14-08-0001-2008, Project No. 07" "... was financed in part by the U.S. Dept. of the Interior, Geological Survey, through the Colorado Water Resources Research Institute ..." 22 p. Includes bibliographical references (p. 13) Reclamation of contaminated wetlands polluted by acid mine drainage will require a greater understanding of the interaction between contaminated waters and sediments. In high altitude meadows, continual flooding can maintain an anaerobic condition. Oxidized sediments showed an increase in zinc (Zn) and sulfur (S) concentration, compared to sediment-solution at initially taken from the site. The addition of acid mine water to sediments in a reducing environment had a significant effect on Zn concentrations. The additions of electrons from organic substrates lowered the concentration of Zn by approximately 10 fold. As expected, the deduction process also lowered redox and decreased total sulfur in solution. Zn sulfide precipitation was verified with the chemical speciation program, MINTEQA2. Colorado State University. Libraries Colorado Water Resources Research Institute Geological Survey (U.S.) 1992 text ; image application/pdf COMP168.pdf CCRICWRI100022CRPT eng Completion report (Colorado Water Resources Research Institute) ; no. 168 Colorado c1992 Colorado Water Resources Research Institute
Fate of heavy metals in Colorado waters and rivers
Brennan, E. W. ; Lindsay, Willard Lyman, 1926-
Water quality -- Colorado
Heavy metals -- Environmental aspects
Acid mine drainage -- Environmental aspects
Wetland ecology -- Colorado
"December 15, 1992"
"Completion Report No. 168"
"Grant No. 14-08-0001-2008, Project No. 07"
"... was financed in part by the U.S. Dept. of the Interior, Geological Survey, through the Colorado Water Resources Research Institute ..."
22 p.
Includes bibliographical references (p. 13)
Reclamation of contaminated wetlands polluted by acid mine drainage will require a greater understanding of the interaction between contaminated waters and sediments. In high altitude meadows, continual flooding can maintain an anaerobic condition. Oxidized sediments showed an increase in zinc (Zn) and sulfur (S) concentration, compared to sediment-solution at initially taken from the site. The addition of acid mine water to sediments in a reducing environment had a significant effect on Zn concentrations. The additions of electrons from organic substrates lowered the concentration of Zn by approximately 10 fold. As expected, the deduction process also lowered redox and decreased total sulfur in solution. Zn sulfide precipitation was verified with the chemical speciation program, MINTEQA2.
Colorado State University. Libraries
Colorado Water Resources Research Institute
Geological Survey (U.S.)
1992
text ; image
application/pdf
COMP168.pdf
CCRICWRI100022CRPT
eng
Completion report (Colorado Water Resources Research Institute) ; no. 168
Colorado
c1992 Colorado Water Resources Research Institute