National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Chromium contamination of water is an important environmental concern because persistent heavy-metal pollution can adversely affect water quality and human health. The present study investigated the preparation of iron-based magnetic material by a chemical co-precipitation approach and its application for chromium removal from an artificial aqueous system. Fe3O4 nanoparticles were prepared from FeCl3·6H2O and FeCl2·4H2O in alkaline medium, followed by nitric-acid treatment and citrate stabilization. The resulting material was magnetically separated, washed, and freeze-dried, yielding 1.77 g of dried material. Chromium (III) chloride solution was used as a model wastewater, and treatment was evaluated under batch conditions using iron material at controlled pH and contact time. UV-Vis measurements were used for characterization of the synthesized iron material and chromium-containing solution. The synthesized material showed a dark brownish-black appearance and a reported UV-Vis feature in the 300–350 nm region. The experimental observations indicated chromium interaction with active sites on the iron material and demonstrated the potential of iron-based adsorbents for wastewater treatment. However, the present dataset does not provide sufficient quantitative residual-chromium concentrations to calculate removal percentage, adsorption capacity, adsorption kinetics, or isotherm parameters. Therefore, these parameters should be established in future work before definitive performance claims are made.
Akinci G, Guven DE, Ugurlu SK. Assessing pollution in Izmir Bay from rivers in western Turkey: heavy metals. Environmental Science. 2013; 15(12): 2252–2262.
Al-Musharsfi SK, Mahmoud IY, Al-Bahry SN. Heavy metal pollution from treated sewage effluent. APCBEE Procedia. 2013; 5: 344–348.
Deshpande PC, Tilwankar AK, Asolekar SR. A novel approach to estimating potential maximum exposure to ship recycling yard workers in Alang. Science of the Total Environment. 2012; 438: 304–311.
Fu F, Wang Q. Removal of heavy metal ions from wastewaters: a review. Journal of Environmental Management. 2011; 92(3): 407–418.
Fujita M, Ide Y, Sato D, et al., Heavy metal contamination of coastal lagoon sediments: Fongafale Islet, Funafuti Atoll, Tuvalu. Chemosphere. 2014; 95: 628–634.
Gowd SS, Reddy MR, Govil PK. Assessment of heavy metal contamination in soils at Jajmau (Kanpur) and Unnao industrial areas of the Ganga Plain, Uttar Pradesh, India. Journal of Hazardous Materials. 2010; 174(1–3): 113–121.
Hashim MA, Mukhopadhyay S, Sahu JN, Sengupta B. Remediation technologies for heavy metal contaminated groundwater. Journal of Environmental Management. 2011; 92(10): 2355–2388.
Li Z, Ma Z, van der Kuijp TJ, Yuan Z, Huang L. A review of soil heavy metal pollution from mines in China: pollution and health risk assessment. Science of the Total Environment. 2014; 468–469: 843–853.
Naser HA. Assessment and management of heavy metal pollution in the marine environment of the Arabian Gulf: a review. Marine Pollution Bulletin. 2013; 72(1): 6–13.
Schwarzenbach RP, Egli T, Hofstetter TB, von Gunten U, Wehrli B. Global water pollution and human health. Annual Review of Environment and Resources. 2010; 35: 109–136.
Wang SL, Xu XR, Sun YX, Liu JL, Li HB. Heavy metal pollution in coastal waters of South China: a review. Marine Pollution Bulletin. 2013; 76(1–2): 7–15.
Zan F, Huo S, Xi B, et al., A 100 year sedimentary record of heavy metal pollution in a shallow eutrophic lake, Lake Chaohu, China. Journal of Environmental Monitoring. 2011; 13(10): 2788–2797.
Citations
|
|
|
