Search Result
Technology Innovation News Survey Feed (RSS)
BIOMASS ASHES FOR ACID MINE DRAINAGE REMEDIATION
Bogush, A.A., C. Dabu, V.D. Tikhova, J.K. Kim, and L.C. Campos.
Waste and Biomass Valorization [Published online 13 September 2019 prior to print]
The potential use of CPK-LA type and PK-LA type biomass ashes (BAs) to remediate acid mine drainage (AMD) was investigated in a lab study that used four BAs from different fuels (straw, meat and bone meal, poultry litter), synthetic AMD, and raw AMDs from Belovo and Ursk, Russia. Batch experiments showed that in 1 hour, biomass ash from straw combustion effectively neutralized synthetic AMD and the Belovo AMD with removal at the liquid-to-solid ratio (L/S) of 100-250 and 10-50, respectively. The biomass ashes from straw and poultry litter combustion effectively removed pollutants from the Ursk AMD at L/S 100 and adjusted pH. The metal concentrations of the treated AMDs met receiving water quality standards. Potential pollutants precipitated as carbonate/hydroxide/sulfate, co-precipitated with Fe oxyhydroxides and Ca phosphates, and appeared as new phases such as Ca, Cu, Zn phosphates and Ca, Fe phosphates. https://link.springer.com/content/pdf/10.1007/s12649-019-00804-9.pdf
Waste and Biomass Valorization [Published online 13 September 2019 prior to print]
The potential use of CPK-LA type and PK-LA type biomass ashes (BAs) to remediate acid mine drainage (AMD) was investigated in a lab study that used four BAs from different fuels (straw, meat and bone meal, poultry litter), synthetic AMD, and raw AMDs from Belovo and Ursk, Russia. Batch experiments showed that in 1 hour, biomass ash from straw combustion effectively neutralized synthetic AMD and the Belovo AMD with removal at the liquid-to-solid ratio (L/S) of 100-250 and 10-50, respectively. The biomass ashes from straw and poultry litter combustion effectively removed pollutants from the Ursk AMD at L/S 100 and adjusted pH. The metal concentrations of the treated AMDs met receiving water quality standards. Potential pollutants precipitated as carbonate/hydroxide/sulfate, co-precipitated with Fe oxyhydroxides and Ca phosphates, and appeared as new phases such as Ca, Cu, Zn phosphates and Ca, Fe phosphates. https://link.springer.com/content/pdf/10.1007/s12649-019-00804-9.pdf
The Technology Innovation News Survey welcomes your comments and
suggestions, as well as information about errors for correction. Please
contact Michael Adam of the U.S. EPA Office of Superfund Remediation
and Technology Innovation at adam.michael@epa.gov or (703) 603-9915
with any comments, suggestions, or corrections.
Mention of non-EPA documents, presentations, or papers does not constitute a U.S. EPA endorsement of their contents, only an acknowledgment that they exist and may be relevant to the Technology Innovation News Survey audience.
