HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Electrodialysis Can Lower the Environmental Impact of Hemodialysis

Abstract : The hemodialysis technique, used worldwide for patients with chronic kidney disease, is considered as a treatment with a high economic and ecological impact, especially for water consumption. Getting ultrapure water for the preparation of the dialysate to clean patient’s blood from toxins leads to high volumes of salt-enriched water that directly goes to sewage. The aim of this work is to propose operating conditions for electrodialysis to allow the reuse of reverse osmosis (RO) rejects. We first performed a parametric study to evaluate the influence of different parameters, such as flow rates, initial concentration, and applied voltage on the demineralization rate (DR) and specific energy consumption (SPC) with a NaCl model solution. The optimal conditions for desalination (i.e., a potential of 12 V, and flow rate of 20 L·h−1) were then successfully applied to real samples collected from a dialysis center with total dissolved salts concentration of about 1.4 g/L (conductivity of 2.0 mS·cm−1). We demonstrated that the choice of adequate conductivity targets allowed meeting the physico-chemical requirements to obtain water re-usable for either rehabilitation swimming pool, manual or machine washing of instruments before sterilization or irrigation. Saving this water could contribute in the reduction of the environmental impact of hemodialysis.
Complete list of metadata

https://hal.utc.fr/hal-03590375
Contributor : Cecile Legallais Connect in order to contact the contributor
Submitted on : Sunday, February 27, 2022 - 11:07:54 AM
Last modification on : Tuesday, March 15, 2022 - 3:22:43 AM

File

Abarkan Membranes 2022.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Ahmed Abarkan, Nabil Grimi, Hubert Métayer, Tarik Sqalli Houssaïni, C. Legallais. Electrodialysis Can Lower the Environmental Impact of Hemodialysis. Membranes, MDPI, 2022, 12 (1), pp.45. ⟨10.3390/membranes12010045⟩. ⟨hal-03590375⟩

Share

Metrics

Record views

5

Files downloads

10