Contribution to the study of the possibility of using natural zeolite in the ramoval of lead ions from aqueous solutions


Abstract in English

studied the elimination of lead using natural zeolite by studding the the best conditions to removal lead in a system with two phase: liquid (contaminated water with lead)-solid (natural zeolite), correlation of the following factors: time of mixing phase, granular size of solid phase, change of pH values, concentration of the calcium element as a competitor element for the available sites for occupation on the solid phase, the ratio V/m represents the size of the aqueous phase to the mass of the solid phase and concentration of lead element. On the other hand, the possibility of using natural zeolite as a template for storaging dangerous materials such as lead, has been studied by changing water quality, pH and temperature. The results of this research show that and under the following experimental conditions: time of mixing=4hour, mix of granular size of solid phase, pH< 8, concentration of calcium = 20 ppm,V/m=100 and concentration of lead = 1000 ppm , the rate of lead removal range from 60% to 99%. On the other hand, the results of this research show that changing water quality has no impact on the ability of natural zeolite for storaging lead as a hazardous waste, while pH changes have minor effects on this ability of retention and an effect for the high temperatures on the template was also observed.

References used

AUBERT ,J. E.; HUSSON ,B.; SARRAMONEN.,F. Utilization of municipal solid waste incineration (MSWI) fly ash in bended cement. S. Of Hazard Materials, 2006,624 -631
JARUP.L. Hazards of heavy metals contamination. Department of epidemiology and public health , imperial college, London ,UK
JAISHANKAR, M.; TSETEN,T.; ANBALAGAN, N.; MATHEW, B.; BEEREGOWDA , K. Toxicity, mechanism and health effects of some heavy metals . Department of biotechnology, sapthagiri college of engineering, Bangalore-57, Karnataka,India,2014

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