Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 107, Issue -, Pages 28-36Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2012.04.020
Keywords
Techno-economical analysis; Electrodialysis; RO concentrate; Environmental impact
Categories
Funding
- EDROR&RENUD project from the Environmental and Energy Innovation Platform (Het Milieu-en energietechnologie Innovatie Platform, MIP - Flemish Government, Belgium)
Ask authors/readers for more resources
This paper presents a systematic techno-economical analysis and an environmental impact evaluation of a reverse osmosis (RO) concentrate treatment process using electrodialysis (ED) in view of environmental management of brine discharges. The concentrate originates from a secondary effluent treated by RO. Without any treatment, the concentrate would have to be discharged; this is compared in this study to the costs and benefits of an effective treatment method in a pilot scale ED plant. A technical analysis was done both on lab scale and pilot scale for the determination of operational and maintenance costs for the ED installation at the required conditions of process performance and safety. Subsequently, an economical analysis was done to calculate the cost of the different parts of the ED system. It was shown that an operational cost of 0.19 EUR m(-3) can be achieved, assuming that the ED concentrate is to decarbonated at pH 6.0 to prevent membrane scaling. Finally, environmental impact issues were calculated and discussed for the overall system. Results imply that if renewable energy is applied for the ED power source, CO2 emission from membrane processes can be much less than from the conventional treatment methods. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available