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Removal of the metal ions Zn2+, Ni2+, and Cu2+ by biogenic sulfide in UASB reactor and speciation studies
| Content Provider | Semantic Scholar |
|---|---|
| Author | Albuquerque, Vinicius Farias De Barros, Allen Lopes De Lopes, Alexandre Colzi Santos, André Bezerra Dos Nascimento, Ronaldo Ferreira Do |
| Copyright Year | 2013 |
| Abstract | Abstract This work evaluated the effects of the chemical oxygen demand (COD)/ ratio on sulfate removal efficiency of an upflow anaerobic sludge blanket reactor inoculated with sludge from an industrial brewery. The removal of nickel (Ni2+), zinc (Zn2+), and copper (Cu2+) by precipitation with the biogenic sulfide was also studied as well as the metals speciation through the reactor height with scanning electron microscopy/energy-dispersive X-ray spectroscopy/X-ray fluorescence (SEM/EDX/XRF) techniques. Ethanol was used as organic carbon source for electron donor, the hydraulic retention time was 18 h, and the organic loading rate was 1.5 kg COD m−3 d−1. The experiment was divided in five periods, evaluating the system capacity in terms of sulfate reduction (COD/ of 2.26, 1.13, and 0.57) and metals (50 and 100 mg L−1) removal by biogenic sulfide. High removal (higher than 98.5%) of the metals was achieved in the bioreactors, which were directly related to the solubilities solubility product of NiS, ZnS, an... |
| Starting Page | 2093 |
| Ending Page | 2101 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1080/19443994.2013.734569 |
| Alternate Webpage(s) | https://www.deswater.com/DWT_abstracts/vol_51_10-12/51_10-12_2013_2093.pdf |
| Alternate Webpage(s) | https://doi.org/10.1080/19443994.2013.734569 |
| Volume Number | 51 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
