AI Article Synopsis
- Swine hair has potential as a biofilter for removing hexavalent chromium (Cr(VI)) from tannery wastewater.
- The hair was treated in an alkaline solution, and the study showed a 99% removal of Cr(VI) in just 105 minutes across a wide pH range (1-10).
- Cytotoxicity tests indicated that the treated effluents were significantly less toxic to both plant and animal cells, suggesting swine hair is a promising eco-friendly solution for heavy metal removal.
Article Abstract
Swine production chain generates residues with potential application in environmental processes. This study aimed at the use of swine hair as a potential biofilter for hexavalent chromium (Cr(VI)) removal from wastewater of tannery industry. The hair was pretreated using HO in alkaline medium, and statistical analysis was carried out to evaluate the hair degradation, as well the Cr(VI) removal by the potential pretreated biofilter. The results showed 99% of Cr(VI) removal in 105 min of treatment in large pH range (1-10). Treated and untreated effluents were submitted to cytotoxicity study using vegetable and animal cells, demonstrating a significant reduction on toxicity to both cells. Therefore, swine hair demonstrated to be a promising residue for heavy metal removal on the perspective of an environmentally friendly technique.
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| http://dx.doi.org/10.1007/s11356-019-06313-5 | DOI Listing |
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