The role of cement dust in chemical remediation of the sludge treated soil
Other Title(s)
دور استخدام تراب الأسمنت فى المعالجة الكيميائية للأراضى المعاملة بمخلفات الصرف الصحى
Joint Authors
Abu Sadah, Muhammad
Zaghlul, Ala M.
Abd al-Jalil, Ali
Source
Assiut University Bulletin for Environmental Researches
Issue
Vol. 8, Issue 2 (31 Oct. 2005), pp.89-106, 18 p.
Publisher
Assiut University Center for Environmental Studies and researches
Publication Date
2005-10-31
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract AR
تعتبر الدراسات التي تجري لمعالجة العناصر الثقيلة الضارة في الأراضي المعاملة بمخلفات المجاري من أهم الموضوعات التي تطبق في الدراسات البيئية لتلافى الأضرار الناتجة من هذه الملوثات، و لذلك أجريت دراسات معملية و أخرى حقلية بمزرعة الجبل الأصفر بالقاهرة تم فيها إضافة المخلفات الصلبة للصرف الصحي بمستويات 10، 20م³ للفدان حيث عوملت بتراب الاسمنت بمعدلات 2.5، 5 % لمعرفة تأثير هذه المادة على خفض محتوى الأراضي من الكميات المتاحة من كل الرصاص، الكادميوم، النيكل و الكروم.
و قد تم الاستعانة بالدراسات الكينيتيكية Kinetic Studies إذ تعتبر الوسيلة التي يتم بها تقييم هذا الانخفاض من الكميات المتاحة من هذه العناصر.
أيضا تم أجراء تجربة حقلية تم فيها الاستعانة بنبات الذرة الشامية كدليل على تأثير مخلفات الصرف الصحي الصلبة المعاملة بتراب الاسمنت في خفض الإضرار الناتجة من إضافة هذه المخلفات.
Abstract EN
Remediation of toxic metals has been considered as an important research subject for environmental studies.
This study investigated the effect of cement dust (CD) applied with two levels i.
e.
2.5 and 5 % on the remediation of Pb, Cd, Ni and Cr in sludge treated soil using the kinetic approach represented by the modified Freundlich, Elovich, the first order, Z (t), and the parabolic diffusion equations through the electrical stirred flow unit (ESFU) technique.
Field experiment was also carried out on El-Gabal El-Asfar region to evaluate and assess the potential effect of cement dust by using corn (Zea maize L.) as an indicator.
The obtained results showed that application of sludge significantly accumulated and showed increases in studied heavy metals especially in high applied level i.e.
20 m3 .fed-1 compared with the low level one i.
e.
10 m3 fed-1.
The application of CD showed a significant decrease in the studied heavy metals represented by the decreasing order of the kinetic parameters of used equations.
The fractionation of heavy metals showed that the residual fraction increased compared with other fractions with increasing the applied level of CD material.
Also, the remediation success of the studied heavy metals represented by remediation index (RI), showed that application of CD led to a decrease in the heavy metal availability in the CD treated soils.
Moreover, the RI showed that there is a priority of CD in minimizing Cr availability in the sludge treated soil followed by Pb, Cd and Ni which gave the highest RI value with respect of the available form of the studied metals.
In the field experiment the results revealed that CD treatments generally led to a significant decrease in the uptake of heavy metals by corn, especially for Ni and Cr and less extent for Pb and Cd.
The applied kinetic models are trusted technique for evaluating the remediation success of the applied material to contaminated soils because it was highly correlated with heavy metal uptake by corn.
The remediation mechanisms of CD was discussed in more details.
American Psychological Association (APA)
Abu Sadah, Muhammad& Zaghlul, Ala M.& Abd al-Jalil, Ali. 2005. The role of cement dust in chemical remediation of the sludge treated soil. Assiut University Bulletin for Environmental Researches،Vol. 8, no. 2, pp.89-106.
https://search.emarefa.net/detail/BIM-291708
Modern Language Association (MLA)
Abu Sadah, Muhammad…[et al.]. The role of cement dust in chemical remediation of the sludge treated soil. Assiut University Bulletin for Environmental Researches Vol. 8, no. 2 (Oct. 2005), pp.89-106.
https://search.emarefa.net/detail/BIM-291708
American Medical Association (AMA)
Abu Sadah, Muhammad& Zaghlul, Ala M.& Abd al-Jalil, Ali. The role of cement dust in chemical remediation of the sludge treated soil. Assiut University Bulletin for Environmental Researches. 2005. Vol. 8, no. 2, pp.89-106.
https://search.emarefa.net/detail/BIM-291708
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 104-105
Record ID
BIM-291708