Document Type : Original Article

Authors

1 PayamDepartment of Civil Engineering, Payame Noor University, P.O.Box. 19395-3697, Tehran, I.R of Iran e Noor University

2 Department of Civil Engineering, Payame Noor University, P.O.Box. 19395-3697, Tehran, I.R of Iran

Abstract

Background: In recent years, the need for new methods of water treatment on an industrial scale in order to compensate the shortage of water resources has become imperative. Among different methods, the use of adsorption in order to remove aqueous contaminates, including synthetic dyes, has been so effective.
Methods: In this research, removal of malachite green from aqueous solution by concrete modified with rubber powder has been studied. In order to achieve the maximum efficiency of malachite green removal, the impact of different parameters such as initial concentration of malachite green, pH, adsorbent dosage and contact time was studied using batch experimental method.
Results: According to the results, optimum conditions of MG removal were pH of 9, initial concentration of 30 ppm, rubber powder dosage of 35% of sand weight, and contact time of 90 min. Results of compressive strength test have shown that compressive strength of concrete with 35 wt.% of rubber powder reduced 84.13% compared to simple concrete. The removal percentage of MG is 98.33% when the surface of concrete is covered by rubber powder. Experimental data  corresponded with pseudo-first order equation with R2= 0.93, Langmuir and Freundlich adsorption isotherms with R2= 0.85 and 0.84, respectively. Real waste sample was used to confirm the application of concrete in ordinary conditions of wastewater basin in accordance with optimum conditions of kinetics wastewater. Elimination rate of MG happened in an optimum condition with real samples taken  from industrial factory.
Conclusion: Concrete modified with rubber powder has potentials for removal of MG dye from wastewater. Covering the concrete surface with rubber powder can be an innovative and useful solution for increasing the rate of elimination of pollutants and contaminants, cost reduction and accelerating the absorption process. Actually, it could be considered as one solution for managing waste rubber.

Keywords

[1] Yagub M.T., Sen T.K., Afroze S., Ang H.M.2014. Dye and its removal from aqueous solution by adsorption: A review, Advances in Colloid and Interface Science. 209, 172-184.
[2] Majeed S.A., Nambi K.S.N., Taju G., Vimal S., Venkatesan C., Hameed A.S.S.2014. Cytotoxicity, genotoxicity and oxidative stress of malachite green on the kidney and gill cell lines of freshwater air breathing fish Channa striata, Environmental Science and Pollution Research. 21 , 13539-13550.
 [3] Lin K.Y.A., Lee W.D. 2016. Highly efficient removal of Malachite green from water by a magnetic reduced graphene oxide/zeolitic imidazolate framework self-assembled nanocomposite, Applied Surface Science. 361, 114-121.
[4] Gupta V., Suhas, Application of low-cost adsorbents for dye removal – A review, Journal of environmental management 90 (2009), 2313-2342
[5] LW Man,P Kumar,TT Teng .2012. Design of experiments for Malachite Green dye removal from wastewater using thermolysis-coagulation-flocculation. Desalination and Water Treatment. 40, 260–271
[6] KYA Lin. HA Chang. 2015. Ultra-high adsorption capacity of zeolitic imidazole framework-67 for removal of Malachite Green from water. Chemosphere. 139, 624–631.
[7] Parvaresh, V.; Hashemi, H.; Khodabakhshi, A.; Sedehi, M. 2018, Removal of dye from synthetic textile wastewater using agricultural wastes and determination of adsorption isotherm. Desalination and Water Treatment. 111, 345-350.
[8]Anbia M., Ghaffari A .2011. Removal of malachite green from dye wastewater using mesoporous carbon adsorbent, Journal of the Iranian Chemical Society. 8, 567-576.
[9] Mall I.D., Srivastava V.C., Agarwal N.K., Mishra I.M. 2005. Adsorptive removal of malachite green dye from aqueous solution by bagasse fly ash and activated carbon-kinetic study and equilibrium isotherm analyses, Colloids and Surfaces A: Physicochemical and Engineering Aspects. 264 , 17-28.
[10] ameed B., El-Khaiary M. 2008. Malachite green adsorption by rattan sawdust: Isotherm, kinetic and mechanism modeling, Journal of Hazardous Materials. 159 ,574-579.
[11] Baek M.H. , Ijagbemi C.O., Se-Jin O., Kim D. S. 2010. Removal of Malachite Green from aqueous solution using degreased coffee bean, Journal of hazardous materials. 176, 820-828.
 [12] Wang X.S., Zhou Y., Jiang Y., Sun C.2008. The removal of basic dyes from aqueous solutions using agricultural by-products,  Journal of Hazardous Materials. 157, 374-385.
[13] Zhang J. Li, W. 2013,. Adsorptive removal of malachite green from aqueous solution using modified peanut shell, Desalination and Water Treatment 51, 5831-5839.
[14] Sharma Y., Fast .2009. Removal of Malachite Green by Adsorption on Rice Husk Activated Carbon, the Open Environmental Pollution & Toxicology Journal. 1 ,74-78.
[15] ZM Abou-Gamra, MA Ahmad.2015. TiO2 nanoparticles for removal of Malachite Green Dye from wastewater.   Advances in Chemical Engineering and Science 5, 373-38.
[16] ACI, A., 318 M-11.2011. Building code requirements for structural concrete and commentary, American Concrete Institute, Farmington Hills, MI, USA.
[17] Mohd Nazri Idris, Zainal Arifin Ahmad, Mohd Azmier Ahmad.2011. Adsorption equilibrium of malachite green dye onto rubber seed coat based activated carbon. International Journal Basic Applied  Science, 11, 38-43.
[18] Asrari, E., Bahmani Nia, A. 2016. Using Modified Concrete for Removing Chromium FromWastewater. Jundishapur Journal Health Science .9(3), 1-4.
[19] Asrari E, Bazrafcan M. 2019.Study of possibility using modified concrete with Kaolin absorbent for removing heavy metal of Chromium (VI) from wastewater . Modares Civil Engineering journal, 18, 27-37.