PT Journal
AU YI, Z-
   LIAN, B
   YANG, Y-
   ZOU, J-
TI Treatment of simulated wastewater from in situ leaching uranium mining by zerovalent iron and sulfate reducing bacteria
SO Transactions of Nonferrous Metals Society of China
PY 2009
BP 840
VL 19
DE basification; sulfate; sulfate reducing bacteria (SRB); uranium; wastewater; zerovalent iron (ZVI)
AB Batch and column experiments were conducted to determine whether zerovalent iron (ZVI) and sulfate reducing bacteria (SRB) can function synergistically and accelerate pollutant removal. Batch experiments suggest that combining ZVI with SRB can enhance the removal of U(?) synergistically. The removal rate of U(?) in the ZVI+SRB combining system is obviously higher than the total rate of ZVI system and SRB system with a difference of 13.4% at t=2 h and 29.9% at t=4 h. Column experiments indicate that the reactor filled with both ZVI and SRB biofilms is of better performance than the SRB bioreactor in wastewater basification, desulfurization and U(?) fixation. The results imply that the ZVI+SRB permeable reactive barrier may be a promising method for treating subsurface uranium contamination.
ER