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Efficiency of Electrical Coagulation Process in Reduction of Water Turbidity
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Hasan Isanloo   , Seid Mohsen Mohseni * , Shahram Nazari , Maryam Sarkhosh , Sudabeh Alizadeh Matboo |
| School of Public Health, Qom University of Medical Sciences, member of Student Research Committee |
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Abstract: (11571 Views) |
| Background & Objectives:Turbidity
and colloidal factors are good shelters for growth and transmission of
biological parameters as well as the factors affecting water usage from
aesthetic point of view. Coagulating agents such as metal hydroxides are
produced by the process of electrolysis. The coagulating agent combines with
the pollutants to form large size flocs. This study aimed to investigate the
efficiency of electrocoagulation-electrofloatation in removal of turbidity from
aquatic environments.
Methods:
In a laboratory-scale fundamental-applicable study a plexiglass
electrocoagulation reactor (24 ×17 ×18 cm) was made. 4 iron/aluminum plates (electrode) with a
dimension of 15 ×16 cm and thickness of 1mm were placed in parallel and 1.5 cm
apart in the tank. A DC power supply with adjustable voltage (0-60 v) and
amperage (0-6 amps) was used.
Results: :
The results showed that the highest turbidity removal from solution was
obtained by aluminum electrode (97.60 %) at pH of 7, potential difference of 50
volts, and contact time of 30 minutes. The maximum rate of turbidity removal
from aqueous solution by using
iron electrodes (89.92%) was achieved at pH=7, potential difference of 50
volts, and contact time of 30 minutes.
Conclusion:
based on experiments' results, using electrocoagulation-electrofloatation has
an appropriate efficiency in turbidity removal. It
can also be concluded that the efficiency of Al electrode to remove turbidity from solution is higher than that of Fe electrode. |
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| Keywords: Electrocoagulation, Water, Turbidity, Electroflotation |
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Full-Text [PDF 277 kb]
(3743 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2014/01/21 | Accepted: 2014/01/21 | Published: 2014/01/21
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