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The Removal of Heavy Metals by Using Agricultural Wastes
Abstract
The removal of heavy metals from wastewater using adsorbants such as waste tea, Turkish coffee, exhausted coffee, nut and walnut shells has investigated. Batch studies were conducted at room temperature and adsorption experiments were carried out by shaking 0.3 g of adsorbent with 100 ml synthetic wastewater containing Cr (VI). Cd (II) and A1 (III) metal ions. The remaining concentration of heavy metals in each samples after adsorption at various time intervals was determined spectrophotometrically. Batch studies showed that these adsorbents exhibit a good adsorption potential for A1 (III) metalions. The adsorption ratios of A1(HI) were as 98, 99, 96, 99.5 and 96% for waste tea, Turkish coffee, exhausted coffee, nut and walnut shells, respectively. These results were compared with those obtained using activated carbon as adsorbent. The batch adsorption kinetics and adsorption equilibria were examined and described by a first order reversible reaction and Freundlich isotherm, respectively. The first order rate and isotherm constants have been calculated.
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Cited by
Heavy metal adsorption onto agro-based waste materials: a review
Demirbas, A. (2008) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2008.01.024 · Cited by 1,566
Removal of Pb(II) and Cd(II) from water by adsorption on peels of banana
Anwar, J., Shafique, U., Waheed-uz-Zaman, Salman, M., Dar, A., & Anwar, S. (2010) · Bioresource Technology · doi:10.1016/j.biortech.2009.10.021 · Cited by 599
Dehghani, M. H., Sanaei, D., Ali, I., & Bhatnagar, A. (2016) · Journal of Molecular Liquids · doi:10.1016/j.molliq.2015.12.057 · Cited by 459
CAY, S., UYANIK, A., & OZASIK, A. (2004) · Separation and Purification Technology · doi:10.1016/j.seppur.2003.12.003 · Cited by 356
Waste tea as a novel adsorbent: a review
Hussain, S., Anjali, K. P., Hassan, S. T., & Dwivedi, P. B. (2018) · Applied Water Science · doi:10.1007/s13201-018-0824-5 · Cited by 166
Metadata
- Authors
- Orhan, Y., & Büyükgüngör, H.
- Venue
- Water Science and Technology
- Publisher
- IWA Publishing
- Published
- 1993-07-01
- Volume
- 28
- Issue
- 2
- Pages
- 247-255
- ISSN
- 0273-1223 (ISSN-L)
- 1996-9732
- OpenAlex
- W2342086632
- Cited by
- 348
- References
- 0
- FWCI
- 3.21
- Type
- journal article
- Language
- en
- Open access
- closed
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