Modeling and Simulation of Cadmium Removal from the Groundwater by Permeable Reactive Barrier Technology

محتوى المقالة الرئيسي

Ayad Abdulhamza Faisal
Zaman Ageel Hmood

الملخص

The removal of cadmium ions from simulated groundwater by zeolite permeable reactive barrier was investigated. Batch tests have been performed to characterize the equilibrium sorption properties of the zeolite in cadmium-containing aqueous solutions. Many operating parameters such as contact time, initial pH of solution, initial concentration, resin dosage and agitation speed were investigated. The best values of these parameters that will achieved removal efficiency of cadmium (=99.5%) were 60 min, 6.5, 50 mg/L, 0.25 g/100 ml and 270 rpm respectively. A 1D explicit finite difference model has been developed to describe pollutant transport within a groundwater taking the pollutant sorption on the permeable reactive barrier (PRB), which is performed by Langmuir equation, into account. Computer program written in MATLAB R2009b successfully predicted meaningful values for Cd+2 concentration profiles. Numerical results show that the PRB starts to saturate after a period of time (~120 h) due to reduce of the retardation factor, indicating a decrease in percentage of zeolite functionality. However, a reasonable agreement between model predictions and experimental results of the


total concentration distribution of Cd2+ species across the soil bed in the presence of zeolite permeable reactive barrier was recognized.

تفاصيل المقالة

كيفية الاقتباس
"Modeling and Simulation of Cadmium Removal from the Groundwater by Permeable Reactive Barrier Technology" (2014) مجلة الهندسة, 20(04), ص 134–159. doi:10.31026/j.eng.2014.04.09.
القسم
Articles

كيفية الاقتباس

"Modeling and Simulation of Cadmium Removal from the Groundwater by Permeable Reactive Barrier Technology" (2014) مجلة الهندسة, 20(04), ص 134–159. doi:10.31026/j.eng.2014.04.09.

تواريخ المنشور

المراجع

Buasri, A., Yongbut, P., Chaiyut, N., and Phattarasirichot, K., 2008, Adsorption Equilibrium of Zinc Ions from Aqueous Solution by Using Modified Clinoptilolite, Chiang Mai J. Sci., Vol. 35, No. 1, PP. 56-62.

Bulut, E., Ozacar, M., and Sengil, I. A., 2008, Equilibrium and Kinetic Data and Process Design for Adsorption of Congo Red on to Bentonite, Journal of Hazardous Materials, Vol. 154, PP. 613-622.

Di Natale, F., Di Natale, M., Greco, R., Lancia, A., Laudante, C., and Musmarra, D., 2008, Groundwater Protection from Cadmium Contamination by Permeable Reactive Barriers, Journal of Hazardous Materials, Vol. 160, PP. 428–434.

El-Sayed, G. O., Dessouki, H. A., and Ibrahim, S. S., 2010, Bio-sorption of Ni(II) and Cd(II) Ions from Aqueous Solutions onto Rice Straw, Chemical Science Journal, CSJ-9.

Faisal, A. A., 2006, Numerical Modeling of Light Non-aqueous Phase Liquid Spill Transport in an Unsaturated-saturated Zone of the Soil, Ph.D Thesis, Baghdad University, College of Engineering.

Hadjmohammadi, M. R., Salary, M., and Biparva, P., 2011, Removal of Cr(vi) from Aqueous Solution using Pine Needles Powder as a Bio-sorbent, Journal of Applied Sciences in Environmental Sanitation, Vol. 6, No. 1, PP. 1-13.

Holzbecher, E., 2007, Environmental Modeling Using MATLAB, Springer Berlin Heidelberg New, ISBN: 978-3-540-72936-5.

Plamondon, C. O., Lynch, R., and Al-Tabbaa, A., 2011, Metal Retention Experiments for the Design of Soil-Mix Technology Permeable Reactive Barriers, Clean – Soil, Air, Water, Vol. 39, No. 9, PP. 844–852.

Puls, R. W., Powell, R. M., Blowes, D. W., Vogan, J. L., Gillham, R. W., Powell, P.D., Landi, R., Sivavec, T., and Schwltz, D., 1998, Permeable Reactive Barrier Technologies for Contaminant Remediation, EPA, 600, (R-98), 125.

Reddi, L. I., and Inyang, H. I., 2000, Geo-environmental Engineering: Principles and Applications, Marcel Dekker, Inc, ISBN: 0-8247-0045-7.

Stengele, R. H., and Kohler, S., 2001, Permeable Reactive Barrier Systems for Groundwater Clean-up, Geological Survey of Finland, Special paper (32), PP. 175–182.

Ujfaludi, L., 1986, Longitudinal Dispersion Tests in Non-uniform Porous Media, Hydrological sciences Journal, Vol. 31, No. 4, PP. 467-474.

Zaiter, M. J., 2006, Treatment of Low-and Intermediate-Level Radioactive Liquid Waste from Altwath Site using Iraqi Zeolite, M.Sc. Thesis, Baghdad University.

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