Removal of chromium from wastewater by swine hair residues applied as a putative biofilter
- 49 Downloads
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 H2O2 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.
KeywordsWaste valuation Biomaterial Hexavalent chromium Cytotoxicity
LCME/UFSC is acknowledged for the SEM images.
This work received financial support and scholarships from CNPq, CAPES, CAPES-PNPD, and FAPERGS.
- Albert A (1961) Design of chelating agents for selected biological activity. Fed Proc 20:137–147Google Scholar
- APHA - American public health association (1998) 3500-CR CHROMIUM: Standard methods for the examination of water and wastewater, 20th edn. Water Environmental Federation, WashingtonGoogle Scholar
- Baker DH, Czarnecki-Maulden GL (1987) Pharmacologie role of cysteine in ameliorating or exacerbating mineral toxicities. Am Instit Nutr 22:1003–1010Google Scholar
- Feghelman M, Haly AR (1960) The mechanical properties of wool keratin and its molecular configuration. Colloid Polym Sci 168:107–115Google Scholar
- Maingi FM, Mbuvi HM, Nganga MM (2016) Remediation of water contaminated with Cr6þ and Cd2þ using aluminophosphates derived from ashes of tea leaves and pumpkin seed. Chem Mater Res 8:94–102Google Scholar
- Millington KR (2006) Bleaching and whitening of wool: photostability of whites. In: Lewis DM, Rippon JA (eds) The coloration of wool and other keratin fibres. Wiley, New Jersey, pp 131–155Google Scholar
- Rizzoni LB, Tobias ACT, Del Bianchi M, Garcia JAD (2012) Anaerobic digestion to treat swine manure. Rev Cient Eletr Med Vet 9:1–20Google Scholar
- USDA-National Nutrient Database for Standard (2015) Reference Release 28. US Department of Agriculture. https://ndb.nal.usda.gov/ndb/
- Venturin B, Camargo AF, Scapini T, Mulinari J, Bonatto C, Bazoti S, Siqueira DP, Colla LM, Alves SL Jr, Bender JP, Steimetz RLR, Kunz A, Fongaro G, Treichel H (2018) Effect of pretreatments on corn stalk chemical properties for biogas production purposes. Bioresour Technol 266:116–124CrossRefGoogle Scholar
- Wan Y, Bao, Zhou Q (2010) Simultaneous adsorption and desorption of cadmium and tetracycline on cinnamon soil. Chem. 80:807–812Google Scholar