Chromium, ammonium, and potassium compounds are pollutants in the environment released mainly by industrial wastewater and they can negatively influence the quality of surface water. Zeolites and bentonites are commonly used adsorbents for removal of pollutant from water. In the study, the adsorbents were used in their natural form, without chemical modification for adsorption of Cr(VI), K(I) and NH4(I) from K2CrO4, K2Cr2O7 and (NH4)2CrO4 in a single compound system for each adsorbate separately. The Langmuir isotherm provided the best correlation for the adsorption onto the zeolites and bentonites. The adsorption capacities of bentonites were higher than the adsorption capacities of zeolites from all the used adsorbates. The maximum sorption capacities of K(I) from K2CrO4 were approximately the same. The maximum sorption capacities of K(I) from K2Cr2O7 and NH4(I) from (NH4)2CrO4 were higher for zeolites than for bentonites. The adsorption of Cr(VI) in the form of anions is preferred to the adsorption of cations. The zeolites and bentonites were found to be suitable adsorbents for removal of Cr(VI) from aqueous solutions.
Shahid M, Shamshad S, Rafiq M, Khalid S, Bibi I, Niazi NK, et al. Chromium speciation, bioavailability, uptake, toxicity and detoxification in soil-plant system: A review. Chemosphere. 2017;178:513–33.
2.
Elvir B, Alisa B, Zeljka SS, Dado S, Samir U, Husnija A. Chromium and nickel in soil in the Wider Maglaj area – concentration and genesis. Archives for Technical Sciences. 2017;17(ue 1):13–20.
3.
P. Z, Zeng X, Wen X, Yang C, Ouyang S, Li P, et al. Insights into efficient removal and mechanism for ammonium from aqueous solution on tricalcium aluminate. Chemical Engineering Journal. 2019;366:11–20.
4.
Guo X, Zeng L, Li X, Park H. Ammonium and potassium removal for anaerobically digested wastewater using natural clinoptilolite followed by membrane pretreatment. Journal of Hazardous Materials. 2008;151:125–33.
5.
Carvalho Costa AWM, Guerhardt F, Ribeiro Júnior SER, Cânovas G, Vanale RM, Freitas Coelho D, et al. Biosorption of Cr(VI) using coconut fibers from agro-industrial waste magnetized using magnetite nanoparticles. 2020.
6.
Aly AA, Alashgar KNS, Al-Farraj AS, Ibrahim HM. Contaminants and salinity removal of olive mill wastewater using zeolite nanoparticles. Separation Science and Technology. 2018;53(ue 11):1638–53.
7.
Zheng Z, Zhao H, Lin X, Yang J, Shi R. Preparation of activated carbon from Camellia oleifera shell and its application to adsorption of hexavalent chromium from aqueous solution: kinetics, equilibrium, and thermodynamics. Desalination and Water Treatment. 2020;198:170–9.
8.
O’Connor E, Kavanagh ON, Chovan D, Madden DG, Cronin P, Albadarin AB, et al. Highly selective trace ammonium removal from dairy wastewater streams by aluminosilicate materials. Journal of Industrial and Engineering Chemistry. 2020;86:39–46.
9.
Liu N, Li Y, J. L, D. O, W W. Study on the removal of high contents of ammonium from piggery wastewater by clinoptilolite and the corresponding mechanisms. Open Chemistry. 2019;17:1393–402.
10.
Lee W, Yoon S, Choe JK, Lee M, Choi Y. Anionic surfactant modification of activated carbon for enhancing adsorption of ammonium ion from aqueous solution. Science of the Total Environment. 2018;639:1432–9.
11.
Huang H, Xiao X, Yan B, Yang L. Ammonium removal from aqueous solutions by using natural Chinese (Chende) zeolite as adsorbent. Journal of Hazardous Material. 2010;175:247–52.
12.
Yusof AM, Keat LK, Ibrahim Z, Majid ZA, Nizam NA. Kinetic and equilibrium studies of the removal of ammonium ions from aqueous solution by rice husk ash synthesized zeolite Y and powdered and granulated forms of mordenite. Journal of Hazardous Material. 2010;174:380–5.
13.
Li G, Zhang J, Liu J, Chen S, Li H. Investigation of the adsorption characteristics of Cr(VI) onto fly ash, pine nut shells, and modified bentonite. Desalination and Water Treatment. 2020;195:389–402.
14.
Freundlich HMF. Über die Adsorption in Lösungen. Zeitschrift für Physikalische Chemie. 1906;57:385–470.
15.
Albadarin AB, Al-Muhtaseb AH, Al-laqtah NA, Walker GM, J. AS, Ahmad MNM. Biosorption of toxic chromium from aqueous phase by lignin: mechanism, effect of other metal ions and salts. Chemical Engineering Journal. 2011;169:20–30.
16.
Langmuir I. The constitutuion and fundamental properties of solids and liquids. Part I Solids, Journal of the American Chemical Society. 1916;38:2221–95.
17.
Günay A, E. A, Tosun I. Lead removal from aqueous solution by natural and pretreated clinoptilolite: Adsorption equilibrium and kinetics. Journal of Hazardous Material. 2007;146:362–71.
18.
Redlich O, Peterson DL. A useful adsorption isotherm. Journal of Physical Chemistry. 1959;63:1024–1024.
19.
Malara C, Pierini G, Viola A. Correlation, analysis and prediction of adsorption equilibria. European. 1992;
20.
In: Commission, Report EUR 13996 EN.
21.
Ayawei N, Ebelegi AN, Wankasi D. Modelling and Interpretation of Adsorption Isotherms. J Chem. 2017;3039817.
22.
Owlad M, Aroua MK, Daud WMAW. 2010.
23.
activated carbon with polyethyleneimine. Bioresource Technology. 101:5098–103.
24.
Baes CF, Mesmer RE. The hydrolysis of cations. 1976.
25.
Salgado-Gómez N, Macedo-Miranda MG, Olguín MT. Chromium VI adsorption from sodium chromate and potassium dichromate aqueous systems by hexadecyltrimethylammonium-modified zeolite-rich tuff. Applied Clay Science. 2014;95:197–204.
26.
Krishna BS, Murty DSR, B.S JP. Surfactant-modified clay as adsorbent for chromate. Applied Clay Science. 2001;20:65–71.
27.
Yusof AM, Malek NANN. Removal of Cr(VI) and As(V) from aqueous solutions by HDTMA modified. 2009.
28.
Y. Journal of Hazardous Material. 162:1019–24.
29.
Natale F, Lancia A, Molino A, Musmarra D. Removal of chromium ions form aqueous solutions by. 2007.
30.
adsorption on activated carbon and char. Journal of Hazardous Material. 145:381–90.
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