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RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis

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Main Authors: Tran, Anh Thu K, Zhang, Yang, Nora, Jullok, Meesschaert, Boudewijn D., Pinoy, Luc Jozef Jan, Van Der Bruggen, Bart
Other Authors: anh.tran@cit.kuleuven.be
Format: Article
Language:English
Published: Elsevier Ltd. 2014
Subjects:
Electrodialysis
Hybrid system
Pellet reactor
Precipitation
RO concentrate treatment
Zero liquid discharge
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/32072
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spelling my.unimap-320722014-02-21T01:43:48Z RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis Tran, Anh Thu K Zhang, Yang Nora, Jullok Meesschaert, Boudewijn D. Pinoy, Luc Jozef Jan Van Der Bruggen, Bart anh.tran@cit.kuleuven.be norajullok@unimap.edu.my bart.vanderbruggen@cit.kuleuven.be Electrodialysis Hybrid system Pellet reactor Precipitation RO concentrate treatment Zero liquid discharge Link to publisher's homepage at http://www.elsevier.com/ This paper investigates the feasibility of a hybrid system consisting of a pellet reactor and electrodialysis (ED) to treat reverse osmosis (RO) concentrates in which the pellet reactor was used to remove the scaling potential before ED treatment. The objective of the hybrid system was a high recovery for the RO system, and zero liquid discharge for the RO. The performance of the pellet reactor on lab-scale was evaluated at superficial velocities of 48, 61 and 73. m/h with an initial pH 11. The efficiency of calcium removal was between 70 and 80%. Precipitation in the pellet reactor showed higher calcium removal up to 95% when the pH was adjusted to 11.5. The wastewater with reduced scaling potential (after pellet crystallization) was treated by ED to achieve the required characteristics for reinserting the liquid to an integrated system ultrafitration-reverse osmosis (UF-RO). Without the pellet reactor and using RO concentrate as feed of ED in feed and bleed operation, the ED was rapidly scaled and reached the maximum voltage. By removing 80% calcium in RO concentrate in the pellet reactor, the ED system can be operated in a stable way with high current efficiency and without scaling. 2014-02-21T01:43:48Z 2014-02-21T01:43:48Z 2012-09 Article Chemical Engineering Science, vol. 79(10), 2012, pages 228-238 0009-2509 http://www.sciencedirect.com/science/article/pii/S000925091200334X# http://dspace.unimap.edu.my:80/dspace/handle/123456789/32072 en Elsevier Ltd.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Electrodialysis
Hybrid system
Pellet reactor
Precipitation
RO concentrate treatment
Zero liquid discharge
spellingShingle Electrodialysis
Hybrid system
Pellet reactor
Precipitation
RO concentrate treatment
Zero liquid discharge
Tran, Anh Thu K
Zhang, Yang
Nora, Jullok
Meesschaert, Boudewijn D.
Pinoy, Luc Jozef Jan
Van Der Bruggen, Bart
RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
description Link to publisher's homepage at http://www.elsevier.com/
author2 anh.tran@cit.kuleuven.be
author_facet anh.tran@cit.kuleuven.be
Tran, Anh Thu K
Zhang, Yang
Nora, Jullok
Meesschaert, Boudewijn D.
Pinoy, Luc Jozef Jan
Van Der Bruggen, Bart
format Article
author Tran, Anh Thu K
Zhang, Yang
Nora, Jullok
Meesschaert, Boudewijn D.
Pinoy, Luc Jozef Jan
Van Der Bruggen, Bart
author_sort Tran, Anh Thu K
title RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
title_short RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
title_full RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
title_fullStr RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
title_full_unstemmed RO concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
title_sort ro concentrate treatment by a hybrid system consisting of a pellet reactor and electrodialysis
publisher Elsevier Ltd.
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/32072
_version_ 1643796764455600128
score 13.222552

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