Peer-Reviewed Journal Details
Mandatory Fields
Calix E.M., Tan L.C. (corresponding author), Rene E.R., Nancharaiah Y.V., van Hullebusch E.D., Lens P.N.L.
Separation And Purification Technology
Integrated upflow sludge bed blanket bioreactor and ion exchange column process assessment for the removal of selenate and sulfate from model wastewater
Optional Fields
The application of an integrated process configuration comprising of an ion exchange (IX) column and an upflow anaerobic sludge blanket (UASB) bioreactor for the simultaneous removal of SO4 2- and total Se from synthetic mine wastewater was evaluated. Use of an IX column as a pretreatment (not as post-treatment) to the UASB bioreactor gave the best overall removal performance. The combined treatment reduced the total Se and SO4 2- concentration from 8.0 and 1441 mg/L to 0.2 and 28.0 mg/L, respectively. This study demonstrated for the first time that an IX process as a pre-treatment to a biological process can significantly improve the oxyanion removal efficiency and the overall treatment of Se-laden wastewaters.
doi: 10.1080/01496395.2018.1533562
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