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Extraction of Water Treatment Coagulant from Locally Abundant Kaolin Clays
Joint Authors
Chigondo, Fidelis
Bhebhe, Vuyo
Nyamunda, Benias Chomunorwa
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Rapid industrialisation is contributing to water pollution.
There is a need to identify cheaper and efficient methods of removing contaminants as the demand for clean water rises.
A study is carried out to investigate the extraction of alum from locally abundant kaolin clays using sulphuric acid.
Alum is a coagulant that is used for raw water treatment.
The kaolin clay and alum were characterized by Fourier transformation infrared spectroscopy (FTIR).
The effects of particle size, calcination temperature, calcination time, acid-kaolin clay ratio, acid concentration, leaching temperature, and leaching time on extraction efficiency were investigated.
The optimum leaching conditions for the calcined kaolin clay were found to be particle size 100 µm, acid-kaolin clay weight ratio 6 : 1, acid concentration 4 M, leaching temperature 100°C, and leaching time 90 min.
Under optimised conditions, 66.95% (w/w) aluminum sulphate was extracted.
The results showed that sulphuric acid could be used on a large scale to extract alum from kaolin clay.
The extracted alum showed similar structural and physical characteristics compared with commercial alum.
A dosage of 40 mg/L of the extracted alum showed effective coagulant properties with a great potential of treating raw water.
American Psychological Association (APA)
Chigondo, Fidelis& Nyamunda, Benias Chomunorwa& Bhebhe, Vuyo. 2015. Extraction of Water Treatment Coagulant from Locally Abundant Kaolin Clays. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067591
Modern Language Association (MLA)
Chigondo, Fidelis…[et al.]. Extraction of Water Treatment Coagulant from Locally Abundant Kaolin Clays. Journal of Chemistry No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1067591
American Medical Association (AMA)
Chigondo, Fidelis& Nyamunda, Benias Chomunorwa& Bhebhe, Vuyo. Extraction of Water Treatment Coagulant from Locally Abundant Kaolin Clays. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067591
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067591