Document Type : Research Paper
Authors
1 Department of Chemical Engineering, University of Technology - Iraq
2 Chemical Engineering Dept., University of Technology, Baghdad, Iraq. yaserengineer80@yahoo.com
Abstract
In the present work, agricultural waste, (Iraqi rice husk A’anbar type) was developed with thermal and chemical treatments for using as an adsorbent to remove phosphate anion from aqueous solution and the thermal treatment at 500oC was the best.
Batch experiments were conducted to obtain the maximum removal of phosphate via changing the parameters of the process, such as contact time, pH, adsorbent dose, initial solute concentration, and the existence of competitive anions upon the removal of phosphate and was investigated. The adsorbent characterization was performed employing Fourier transform infrared (FTIR), X-ray fluorescence (XRF), scanning electron microscope (SEM), the BET surface area and pore volume, and X-ray diffraction spectrophotometric analysis (XRD).
The maximum removal of phosphate was achieved as (98.37 %), at contact time 140 min., pH 2.0, adsorbent dose 20 g/L, and initial concentration 5 mg/L at room temperature. The effects of competing ions of CO3-2, NO-3, and SO4-2 anions were studied. The experimental data manifested the best fit for the Langmuir isotherm model (R2 = 0.99) and the pseudo-second-order kinetic model (R2 = 0.99). Rice husk ash was found efficient for phosphate removal from the industrial wastewater and aqueous solutions.
Keywords
[2] E. Oguz, ―Thermodynamic and kinetic investigations of PO4-3 adsorption on blast furnace slag‖, Journal of Colloid and Interface Science, 281, pp. 62–67, 2005.
[3] Z. Wang, D. Shen, F. Shen, and T. Li, ―Phosphate adsorption on lanthanum loaded biochar‖, Chemosphere, 150, pp. 1–7, 2016.
[4] J. Zhang, Z. Shen, W. Shan, Z. Mei, and W. Wang, ―Adsorption behavior of phosphate on lanthanum(III)-coordinated diamino-functionalized 3D hybrid mesoporous silicates material‖, Journal of Hazardous Materials, 186, pp. 76–83, 2011.
[5] S. Mor, K. Ravindra, De Visscher, A., R.P. Dahiya, and A. Chandra, ―Municipal solid waste characterization and its assessment for potential methane generation: a case study‖, Science of the Total Environment, 371(1), pp. 1-10, 2006a.
[6] S. Mor, K. Ravindra, R.P. Dahiya, and A. Chandra, ―Leachate characterization and assessment of groundwater pollution near municipal solid waste landfill site‖, Environmental and Monitoring Assessment, 118(1-3), pp. 435-456, 2006b.
[7] T. Wium-Andersen, A.H. Nielsen, T. Hvitved-Jacobsen, H. Brix, C.A. Arias, and J. Vollertsen, ―Modeling the eutrophication of two mature planted stormwater ponds for runoff control‖, Ecological Engineering, 61, pp. 601–613, 2013.
[8] S. Mor, K. Ravindra, and N.R. Bishnoi, ―Adsorption of chromium from aqueous solution by activated alumina and activated charcoal‖, Bioresour Technol, 98(4), pp. 954-957, 2007.
[9] K. Ravindra, K. Kaur, and S. Mor, ―System analysis of municipal solid waste management in Chandigarh and minimization practices for cleaner emissions‖, Journal of Cleaner Production, 89, pp. 251-256, 2015.
[10] M. Oliveira, A. V, and R. Nogueira, ―Phosphorus Removal from Eutrophic Waters with an Aluminium Hybrid Nanocomposite‖, Water, Air, & Soil Pollution, 223(8), pp. 4831–4840, 2012.
[11] T. Park, V. Ampunan, S. Maeng, and E. Chung, ―Application of steel slag coated with sodium hydroxide to enhance precipitation-coagulation for phosphorus removal‖, Chemosphere, 167, pp. 91–97, 2017.
[12] X. Xu, B. Gao, W. Wang, Q. Yue, Y. Wang, & S. Ni, ―Adsorption of phosphate from aqueous solutions onto modified wheat residue: characteristics, kinetic and column studies‖, Colloids and Surfaces, B, Biointerfaces, 70(1), pp. 46–52, 2009.
[13] M. Rathod, K. Mody, & S. Basha, ―Efficient removal of phosphate from aqueous solutions by red seaweed‖, Kappaphycus alverezii, Journal of Cleaner Production, 84, pp. 484–493, 2014.
[14] D. Yadav, M. Kapur, P. Kumar, and M.K. Mondal, ―Adsorptive removal of phosphate from aqueous solution using rice husk and fruit juice residue‖, Process Safety and Environmental Protection, 94, pp. 402–409, 2014.
[15] J. Torit, & P. Doungkamon, ―Phosphorus removal from wastewater using eggshell ash‖, Environmental Science and Pollution Research, pp. 1-9, 2018.
[16] W. Chansuvarn, ―Removal of Phosphate from Wastewater Using Carbonized Filter Cake‖, Division of Science, Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon, Bangkok 10800, Thailand,Applied Mechanics and Materials Submitted: ISSN: 1662-7482, Vol. 879, pp. 125-130, 2017.
[17] A.K. Babayemi, ―Performance Evaluation of Palm Kernel Shell Adsorbents for the Removal of Phosphorus from Wastewater‖, Advances in Chemical Engineering and Science, 7, pp. 215-227, 2017.
[18] M.C. Manique, C.S. Faccini, B. Onorevoli, E.V. Benvenutti, and E.B. Caramão, ―Rice husk ash as an adsorbent for purifying biodiesel from waste frying oil. Fuel‖, 92(1), pp. 56–61, 2012.
[19] S.M. Gawande, K. Shelke, N.A. Dhoke, M.D. Lengre, and A.D. Diksha, ―Analysis and removal of phosphate from wastewater by using rice husk‖, International Research Journal of Engineering and Technology (IRJET), Vol. 04, pp. 2115-2119, 2017.
[20] S. Mor, K. Chhoden, and R. Khaiwal, ―Application of Agro-waste Rice Husk Ash for the R
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