Abstract
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 SO42- and total Se from synthetic mine wastewater was evaluated. Use of an IX column as a pre-treatment (not as post-treatment) to the UASB bioreactor gave the best overall removal performance. The combined treatment reduced the total Se and SO42- 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.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 1387-1399 |
| Number of pages | 12 |
| Journal | Separation Science And Technology |
| Volume | 54 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 May 2019 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Keywords
- Ion exchange column
- UASB bioreactor
- adsorption
- integrated treatment system
- selenate removal
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Calix, EM;Tan, LC;Rene, ER;Nancharaiah, YV;Van Hullebusch, ED;Lens, PNL
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