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

نویسندگان

چکیده

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 in cadmium-containing aqueous solutions. Many operating parameters such as contact time, initial pH solution, concentration, resin dosage and agitation speed were best values these that will achieved efficiency (=99.5%) 60 min, 6.5, 50 mg/L, 0.25 g/100 ml 270 rpm respectively. A 1D explicit finite difference model has developed describe pollutant transport within a taking on (PRB), which is Langmuir equation, into account. Computer program written MATLAB R2009b successfully predicted meaningful for Cd+2 concentration profiles. Numerical results show PRB starts saturate after period time (~120 h) due reduce retardation factor, indicating decrease percentage functionality. However, reasonable agreement between predictions experimental the
 total distribution Cd2+ species across soil bed presence recognized.

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ژورنال

عنوان ژورنال: Ma?allat? al-handasat?

سال: 2023

ISSN: ['1726-4073', '2520-3339']

DOI: https://doi.org/10.31026/j.eng.2014.04.09