REMOVAL OF SOME HEAVY METALS BY B.C.K.D. LEACHATE
NAGWAN GAAFAR ZAKI;
Abstract
It has been already established that heavy metal pollution is one of the most senous environmental problems due to their toxicity. For environmental protection, the removal and/or recovery of these metals from industrial effluents offer a versatile field of research.
The aim of the present work is to study the ability of the leachate of by-pass cement kiln dust (BCKD) to remove heavy metal ions from dilute solutions. Different specified masses of BCKD were taken and agitated with water and then filtered out. The filtrate (i.e. the leachate) was used to precipitate the ions of copper, nickel and zinc from their singly-laden synthetic solutionsEach solution contained 100 ppm of a metal ion. Different volumes of leachate ranged between 1 to 20 ml were added to 20 ml of the solution containing ions of one of the previously mentioned metals in all experiments. The percentage removal of the metal was calculated and the corresponding pH after addition was measured.
A three metal-laden synthetic solution containing copper, nickel and zinc ions each of 50 ppm concentration was also investigated. It is worth noting that the removal of copper ions is easier at lower pH value than the removal of both nickel and zinc ions.
The aim of the present work is to study the ability of the leachate of by-pass cement kiln dust (BCKD) to remove heavy metal ions from dilute solutions. Different specified masses of BCKD were taken and agitated with water and then filtered out. The filtrate (i.e. the leachate) was used to precipitate the ions of copper, nickel and zinc from their singly-laden synthetic solutionsEach solution contained 100 ppm of a metal ion. Different volumes of leachate ranged between 1 to 20 ml were added to 20 ml of the solution containing ions of one of the previously mentioned metals in all experiments. The percentage removal of the metal was calculated and the corresponding pH after addition was measured.
A three metal-laden synthetic solution containing copper, nickel and zinc ions each of 50 ppm concentration was also investigated. It is worth noting that the removal of copper ions is easier at lower pH value than the removal of both nickel and zinc ions.
Other data
| Title | REMOVAL OF SOME HEAVY METALS BY B.C.K.D. LEACHATE | Other Titles | إزالة بعض المعادن الثقيلة باستخدام نقيع تراب الممرات الجانبية لأفران الأسمنت | Authors | NAGWAN GAAFAR ZAKI | Issue Date | 2006 |
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