Isfahan University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Removal of Turbidity From Water by Dissolved Air Flotation and Conventional Sedimentation Systems Using Poly Aluminum Chloride As Coagulant Publisher



Khiadani Hajian M1, 2 ; Kolivand R3 ; Ahooghalandari M1 ; Mohajer M4
Authors
Show Affiliations
Authors Affiliations
  1. 1. School of Engineering, Edith Cowan University, Joondalup, WA, 6027, Australia
  2. 2. Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Ilam University of Medical Sciences, Ilam, Iran
  4. 4. University of Isfahan, Isfahan, Iran

Source: Desalination and Water Treatment Published:2014


Abstract

Flotation is a method in which particles in liquid phase are transported to the surface by air bubbles. In this experimental study, a comparison has been made between conventional sedimentation and dissolved air flotation (DAF) systems to remove turbidity from water. Initially, optimal operational conditions for each system utilized using water artificially turbid with Kaolin. For each system, samples were taken at 20-min interval after the system reached its optimal operational conditions. Parameters, such as turbidity, alkalinity, temperature, pH, and total suspended solids, were measured. For 20, 30-50 and 90-110 NTU, turbidity average removal efficiencies in DAF system were 14.7, 11.1 and 10.9%, respectively, larger than the conventional sedimentation system. The effect of coagulant dose indicated that DAF system with lower dosage of coagulant have higher removal efficiency. On the other hand, the results showed that due to increased efficiency of DAF system, solid concentration of sludge produced in this system was more than the sedimentation system (p < 0.01). However, operation of DAF system needs accurate control devices and experienced technical staff to operate the system. © 2013 © 2013 Balaban Desalination Publications. All rights reserved.
Related Docs
View other Related Docs
1. Survey of Dissolved Air Flotation System Efficiency for Reduce of Pollution of Vegetable Oil Industry Wastewater, Pakistan Journal of Biological Sciences (2008)
2. Arsenic Removal by Dissolved Air Flotation, Journal of Applied Sciences (2006)
3. The Survey of Removal of Suspended Solids From River at Flooding Period by Plain Sedimentation Process, Advances in Environmental Biology (2012)
4. Comparison Study of Turbidity Removal Using Synthetized Poly-Aluminum Chloride-Sulfate and Poly-Aluminum Chloride in Aqueous Solutions, International Journal of Environmental Health Engineering (2014)
5. Formaldehyde Removal From Airstreams Using a Biofilter With a Mixture of Compost and Woodchips Medium, Water, Air, and Soil Pollution (2014)
6. Application of Moringa Oleifera Coagulant Protein As Natural Coagulant Aid With Alum for Removal of Heavy Metals From Raw Water, Desalination and Water Treatment (2018)
7. Upgrading the Effluent Quality of an Aerated Lagoon With Horizontal Roughing Filtration, Environment Protection Engineering (2015)
8. High Turbid Water Treatment by Kenaf Fibers: A Practical Method for Individual Water Supply and Remote Areas, Desalination and Water Treatment (2017)
Experts (# of related papers)
View all Related Experts
Mohammad Mehdi Amin (6)
Afshin Ebrahimi (5)
Other Related Docs
9. Biological Excess Sludge Reduction in Adsorption/Bio-Oxidation Process by Enhancing Predators' Growth, International Journal of Environmental Health Engineering (2020)
10. The Effectiveness of Chitosan As Coagulant Aid in Turbidity Removal From Water, International Journal of Environmental Health Engineering (2013)
11. Proposal of Upgrading Isfahan North Wastewater Treatment Plant: An Adsorption/Bio-Oxidation Process With Emphasis on Excess Sludge Reduction and Nutrient Removal, Journal of Cleaner Production (2020)
12. The Effectiveness of Polyaluminum Ferric Chloride (Pafcl) for Turbidity and Color Removal From Isfahan Raw Water, Desalination and Water Treatment (2015)
13. Comparative Study of Smbr and Extended Aeration Activated Sludge Processes in the Treatment of High-Strength Wastewaters, Desalination (2012)
14. Modification of Pumice With Hcl and Naoh Enhancing Its Fluoride Adsorption Capacity: Kinetic and Isotherm Studies, Human and Ecological Risk Assessment (2019)
15. Modeling and Optimization of the Coagulation/Flocculation Process in Turbidity Removal From Water Using Poly Aluminum Chloride and Rice Starch As a Natural Coagulant Aid, Environmental Monitoring and Assessment (2023)
16. Wastewater Reuse From Hemodialysis Section by Combination of Coagulation and Ultrafiltration Processes: Case Study in Saveh-Iran Hospital, Desalination and Water Treatment (2020)
17. Biofiltration of Formaldehyde, Acetaldehyde, and Acrolein From Polluted Airstreams Using a Biofilter, Journal of Chemical Technology and Biotechnology (2018)
18. Comparison of Horizontal and Vertical Constructed Wetlands With Coagulation-Flocculation-Filtration Unit Efficiencies in the Polishing of Industrial Wastewater Effluent: A Case Study of Mourchekhort Industrial Estate Wastewater Treatment Plant, Iran, Journal of Health System Research (2022)
19. Application of Iranian Natural Zeolite and Blast Furnace Slag As Slow Sand Filters Media for Water Softening, International Journal of Environmental Health Engineering (2014)
20. Determination of Biokinetic Coefficients for an Adsorption/Bio-Oxidation Process on Municipal Wastewater in Pilot-Scale, International Journal of Environmental Health Engineering (2015)
21. Biodeterioration of 1, 1-Dimethylhydrazine From Air Stream Using a Biofilter Packed With Compost-Scoria-Sugarcane Bagasse, Atmospheric Pollution Research (2018)
22. Effectiveness of Moringa Oleifera Coagulant Protein As Natural Coagulant Aid in Removal of Turbidity and Bacteria From Turbid Waters, World Academy of Science, Engineering and Technology (2010)