Effect of cement kiln dust addittion on activated sludge process without primary settling for reuse applications
Author
Source
Housing and Building National Research Center Journal
Issue
Vol. 8, Issue 1 (30 Apr. 2012), pp.19-33, 15 p.
Publisher
Housing and Building National Research Center
Publication Date
2012-04-30
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Earth Sciences, Water and Environment
Civil Engineering
Topics
Abstract EN
Today, numerous treatment plants are designed and operated using chemicals for nutrient removal, sludge conditioning and promotion of better sedimentation or flotation .Cement kiln dust (CKD) is useless byproduct from the cement industry and a significant resource value for lime substituting.
In this paper work, CKD is used as a chemical precipitant for activated sludge process pilot plant without using primary settling at different temperature ranges (30-35) Cº and (15-20) ºC .For temp.
Ranges (30-35) Cº, CKD addition concentration was 1 g / l and the system achieved very good removal of 93.5 %, 93.3 %, 93.6 % and 87 % for BOD5 COD, TSS, and P total respectively.
The system also achieved high removal efficiency for pathogenic indicators with 5 log removal units for TC, FC, and E coli respectively for temp.
Ranges (15 - 20) Cº, different CKD addition concentration were used until reached 2 g / l which enabled the system to achieve high removal efficiencies of 94.1 %, 94.1 %, 94.2 % and 87.9 % for BOD5 COD, TSS, and P total respectively.
The system achieved 6 log removal units for TC, FC, and E coli respectively .As a result of CKD additions of 1, 2 g / l for temp.
ranges (30 - 35) Cº and (15 - 20) Cº respectively to the used activated sludge process pilot plant without using primary settling, the system achieved high removal efficiencies of the chemical and bacteriological pollutants which enabled the system to achieve the permissible effluents of these pollutants to comply with the requirements of reuse limits of wastewater for agricultural purposes, Law 501 / 2005 limits.
American Psychological Association (APA)
Mustafa, A. H.. 2012. Effect of cement kiln dust addittion on activated sludge process without primary settling for reuse applications. Housing and Building National Research Center Journal،Vol. 8, no. 1, pp.19-33.
https://search.emarefa.net/detail/BIM-312689
Modern Language Association (MLA)
Mustafa, A. H.. Effect of cement kiln dust addittion on activated sludge process without primary settling for reuse applications. Housing and Building National Research Center Journal Vol. 8, no. 1 (Apr. 2012), pp.19-33.
https://search.emarefa.net/detail/BIM-312689
American Medical Association (AMA)
Mustafa, A. H.. Effect of cement kiln dust addittion on activated sludge process without primary settling for reuse applications. Housing and Building National Research Center Journal. 2012. Vol. 8, no. 1, pp.19-33.
https://search.emarefa.net/detail/BIM-312689
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 32-33
Record ID
BIM-312689