TY - JOUR
T1 - Studies with spiral wound Donnan dialysis contactor for nitrate removal from contaminated water
AU - Verma, Akshaya Kumar
AU - Akodwaa-Boadi, Kofi
AU - Ronen, Zeev
AU - Oren, Yoram
AU - Gilron, Jack
N1 - Funding Information:
Authors acknowledge the ZIWR, BIDR, Ben Gurion University of the Negev Israel for providing research facilities in the related area, Saraswati 2.0 (EU-INDIA, Grant no. 821427 ), and Mauerberger Foundation (Grant no. 87730211 ) for financial support related to the research work and Mr. Rajnish Kumar, Ph.D. student, Department of Electrical and Computer Engineering BGU for invaluable help to develop the MATLAB models. The authors are also indebted to Prof. Ligy Philip, Mr. A.V. Vardhan and Ms. G. Ramalingam from IIT Madras, India, for fruitful discussions.
Funding Information:
Authors acknowledge the ZIWR, BIDR, Ben Gurion University of the Negev Israel for providing research facilities in the related area, Saraswati 2.0 (EU-INDIA, Grant no. 821427), and Mauerberger Foundation (Grant no. 87730211) for financial support related to the research work and Mr. Rajnish Kumar, Ph.D. student, Department of Electrical and Computer Engineering BGU for invaluable help to develop the MATLAB models. The authors are also indebted to Prof. Ligy Philip, Mr. A.V. Vardhan and Ms. G. Ramalingam from IIT Madras, India, for fruitful discussions.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/8/1
Y1 - 2023/8/1
N2 - In the present study, we investigated nitrate removal using Donnan dialysis aiming to scale up a process capable of treating 1 m3/day or more. Four different anionic membranes, FAD, FAS, and FAB by Fumatech GmbH and PCA 100 from PC-Cell, were screened in batch Donnan dialysis experiments with nitrate and/or sulfate using chloride as the driving ion. FAD, FAS and FAB showed similar nitrate flux while PCA 100 produced significantly lesser nitrate flux under experimental conditions. Based on the higher selectivity for nitrate over sulfate, FAS was preferred over FAD membrane. A spiral wound module contactor was fabricated each with the FAS and FAD membranes. The steady-state performance of the system revealed excellent nitrate removal at the selected operating conditions, successfully eliminating an average nitrate loading rate of 5.0 kg NO3−/m3/d and producing 30 ± 5 mg/L nitrate. Nitrate transport modeling using MATLAB was performed to predict exit nitrate concentration at any point along the path length of membrane at the given set of conditions. The output of the simulated model came out to be in reasonable agreement with the exit nitrate concentration measured experimentally, reflecting its robustness.
AB - In the present study, we investigated nitrate removal using Donnan dialysis aiming to scale up a process capable of treating 1 m3/day or more. Four different anionic membranes, FAD, FAS, and FAB by Fumatech GmbH and PCA 100 from PC-Cell, were screened in batch Donnan dialysis experiments with nitrate and/or sulfate using chloride as the driving ion. FAD, FAS and FAB showed similar nitrate flux while PCA 100 produced significantly lesser nitrate flux under experimental conditions. Based on the higher selectivity for nitrate over sulfate, FAS was preferred over FAD membrane. A spiral wound module contactor was fabricated each with the FAS and FAD membranes. The steady-state performance of the system revealed excellent nitrate removal at the selected operating conditions, successfully eliminating an average nitrate loading rate of 5.0 kg NO3−/m3/d and producing 30 ± 5 mg/L nitrate. Nitrate transport modeling using MATLAB was performed to predict exit nitrate concentration at any point along the path length of membrane at the given set of conditions. The output of the simulated model came out to be in reasonable agreement with the exit nitrate concentration measured experimentally, reflecting its robustness.
KW - Donnan dialysis
KW - IEMB
KW - Kinetic modeling
KW - MATLAB
KW - Nitrate removal
UR - http://www.scopus.com/inward/record.url?scp=85162099290&partnerID=8YFLogxK
U2 - 10.1016/j.jwpe.2023.103878
DO - 10.1016/j.jwpe.2023.103878
M3 - Article
AN - SCOPUS:85162099290
SN - 2214-7144
VL - 54
JO - Journal of Water Process Engineering
JF - Journal of Water Process Engineering
M1 - 103878
ER -