Alper Bayrakdar, Erkan Sahinkaya
The applicability of anaerobic baffled reactor (ABR) was investigated for the treatment of acidic (pH 4.5–7.0) wastewater containing sulfate (1000–2000 mg/L) and Zn (65–200 mg/L) at 35°C. The ABR consisted of four equal stages and lactate was supplemented (COD/SO4²-/C0 = 0.67) as carbon and energy source for sulfate reducing bacteria (SRB). The robustness of the system was studied by decreasing pH and increasing Zn, COD, and sulfate loadings. Sulfate-reduction efficiency quickly increased during the startup period and reached 80% within 45 days. Decreasing feed pH, increasing feed sulfate and Zn concentrations did not adversely affect system performance as sulfate reduction and COD removal efficiencies were within 62–90% and 80–95%, respectively. Although feed pH was steadily decreased from 7.0 to 4.5, effluent pH was always within 6.8–7.5. Over 99% Zn removal was attained throughout the study due to the formation of Zn-sulfide precipitate.
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title={Performance of sulfidogenic anaerobic baffled reactor (ABR) treating acidic and zinc-containing wastewater},
author={Alper Bayrakdar and Erkan Sahinkaya},
year={2009},
language={en}
}TY - JOUR TI - Performance of sulfidogenic anaerobic baffled reactor (ABR) treating acidic and zinc-containing wastewater AU - Alper Bayrakdar AU - Erkan Sahinkaya PY - 2009 LA - en ER -
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