Removal of fluoride ions from wastewater using green and blue-green algae biomass in a fluidized bed system
Other Title(s)
إزالة أيونات الفلور من مياه الفضلات باستخدام كتلة الطحالب الخضراء و الزرقاء في نظام أنبوب التميع
Author
Source
Issue
Vol. 22, Issue 2 (28 Feb. 2016), pp.111-127, 17 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2016-02-28
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract EN
The removal of fluoride ions from aqueous solution onto algal biomass as biosorbent in batch and continuous fluidized bed systems was studied.
Batch system was used to study the effects of process parameters such as, pH (2-3.5), influent fluoride ions concentration (10- 50 mg/l), algal biomass dose (0–1.5 g/ 200 ml solution), to determine the best operating conditions.
These conditions were pH=2.5, influent fluoride ions concentration= 10 mg/l, and algal biomass dose=3.5 mg/l.
While, in continuous fluidized bed system, different operating conditions were used; flow rate (0.667- 0.800 l/min), bed depth (8-15 cm) corresponded to bed weight of (80- 150 g).
The results show that the breakthrough time increases with the increase of bed depth but decreases with the increase of flow rate.
Thomas and Yoon-Nelson models were used to analyze the experimental data and there was a good matching between the theoretical and the experimental data for both models.
Desorption studies indicate that NaOH solutions at different pH values (8-10) were used to recover the fluoride ions sorbed onto the algal biomass.
It is noteworthy that the desorption efficiency at pH =10 remains close to 95 % of the initial value of sorption capacity.
So the desorption performance remains appreciable.
American Psychological Association (APA)
Ibrahim, Shahla Ismail. 2016. Removal of fluoride ions from wastewater using green and blue-green algae biomass in a fluidized bed system. Journal of Engineering،Vol. 22, no. 2, pp.111-127.
https://search.emarefa.net/detail/BIM-687151
Modern Language Association (MLA)
Ibrahim, Shahla Ismail. Removal of fluoride ions from wastewater using green and blue-green algae biomass in a fluidized bed system. Journal of Engineering Vol. 22, no. 2 (Feb. 2016), pp.111-127.
https://search.emarefa.net/detail/BIM-687151
American Medical Association (AMA)
Ibrahim, Shahla Ismail. Removal of fluoride ions from wastewater using green and blue-green algae biomass in a fluidized bed system. Journal of Engineering. 2016. Vol. 22, no. 2, pp.111-127.
https://search.emarefa.net/detail/BIM-687151
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 123-127
Record ID
BIM-687151