Inhibiting effect of textile wastewater on the activity of sludge from the biological treatment process of the activated sludge plant
Joint Authors
Gebrati, L.
al-Ashabi, M.
Chatoui, H.
Laqbaqbi, M.
al-Kharraz, J.
Aziz, F.
Source
Saudi Journal of Biological Sciences
Issue
Vol. 26, Issue 7 (30 Nov. 2019), pp.1753-1757, 5 p.
Publisher
Publication Date
2019-11-30
Country of Publication
Saudi Arabia
No. of Pages
5
Main Subjects
Topics
Abstract EN
Textile industry represents an important source of toxic substances rejected in environment.
Indeed, effluent of these industries contains dyes and chemicals.
They are rejected in environment without any treatment.
The aim of this work is to evaluate ecotoxicological effect of industrial textile effluents on the sludge harvested from activated sludge treatment plant of Marrakech city (Morocco).
For this, we are interested in determining the inhibition condition that corresponds to 50% decrease of bacterial activity in sludge.
Obtained results showed that inhibition percentage of bacterial activity depends narrowly on contact time and on added effluent volume, until a limit concentration where there is no degradation of substratum.
In fact, substratum degradation speed shows about 65 times decrease when 80% (v/v) of textile wastewater is added, in comparison with the controlled one.
Consequently the inhibition constant (Ki) that corresponds to 50% of bacterial inhibition activity is estimated to 0.65 mg l−1 of dye.
These studies confirm a real ecotoxicological risk of these effluents.
Therefore, a treatment is mandatory before their rejection in environment.
American Psychological Association (APA)
Gebrati, L.& al-Ashabi, M.& Chatoui, H.& Laqbaqbi, M.& al-Kharraz, J.& Aziz, F.. 2019. Inhibiting effect of textile wastewater on the activity of sludge from the biological treatment process of the activated sludge plant. Saudi Journal of Biological Sciences،Vol. 26, no. 7, pp.1753-1757.
https://search.emarefa.net/detail/BIM-910304
Modern Language Association (MLA)
Gebrati, L.…[et al.]. Inhibiting effect of textile wastewater on the activity of sludge from the biological treatment process of the activated sludge plant. Saudi Journal of Biological Sciences Vol. 26, no. 7 (Nov. 2019), pp.1753-1757.
https://search.emarefa.net/detail/BIM-910304
American Medical Association (AMA)
Gebrati, L.& al-Ashabi, M.& Chatoui, H.& Laqbaqbi, M.& al-Kharraz, J.& Aziz, F.. Inhibiting effect of textile wastewater on the activity of sludge from the biological treatment process of the activated sludge plant. Saudi Journal of Biological Sciences. 2019. Vol. 26, no. 7, pp.1753-1757.
https://search.emarefa.net/detail/BIM-910304
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1756-1757
Record ID
BIM-910304