Electrodialysis Can Lower the Environmental Impact of Hemodialysis
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 h...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/1/45 |
| _version_ | 1797492072158068736 |
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| author | Ahmed Abarkan Nabil Grimi Hubert Métayer Tarik Sqalli Houssaïni Cécile Legallais |
| author_facet | Ahmed Abarkan Nabil Grimi Hubert Métayer Tarik Sqalli Houssaïni Cécile Legallais |
| author_sort | Ahmed Abarkan |
| collection | DOAJ |
| description | 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<sup>−1</sup>) 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<sup>−1</sup>). 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. |
| first_indexed | 2024-03-10T00:58:21Z |
| format | Article |
| id | doaj.art-186c7d671fbf48a68e08056c97513b09 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T00:58:21Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-186c7d671fbf48a68e08056c97513b092023-11-23T14:38:28ZengMDPI AGMembranes2077-03752021-12-011214510.3390/membranes12010045Electrodialysis Can Lower the Environmental Impact of HemodialysisAhmed Abarkan0Nabil Grimi1Hubert Métayer2Tarik Sqalli Houssaïni3Cécile Legallais4Biomechanics & Bioengineering Laboratory, CNRS, Université de Technologie de Compiègne, 60203 Compiegne, FranceTransformations Intégrées de la Matière Renouvelable (TIMR), Université de Technologie de Compiègne, ESCOM, 60203 Compiegne, FranceHemodialysis Service, Polyclinique Saint-Côme, 7 Rue Jean-Jacques Bernard, 60204 Compiegne, FranceLaboratory of Epidemiology and Research in Health Sciences (ERESS), Faculty of Medicine and Pharmacy, Sidi Mohammed Ben Abdellah University, Fez 30050, MoroccoBiomechanics & Bioengineering Laboratory, CNRS, Université de Technologie de Compiègne, 60203 Compiegne, FranceThe 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<sup>−1</sup>) 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<sup>−1</sup>). 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.https://www.mdpi.com/2077-0375/12/1/45hemodialysiselectrodialysisdemineralization ratespecific energy consumptionreverse osmosis rejects |
| spellingShingle | Ahmed Abarkan Nabil Grimi Hubert Métayer Tarik Sqalli Houssaïni Cécile Legallais Electrodialysis Can Lower the Environmental Impact of Hemodialysis Membranes hemodialysis electrodialysis demineralization rate specific energy consumption reverse osmosis rejects |
| title | Electrodialysis Can Lower the Environmental Impact of Hemodialysis |
| title_full | Electrodialysis Can Lower the Environmental Impact of Hemodialysis |
| title_fullStr | Electrodialysis Can Lower the Environmental Impact of Hemodialysis |
| title_full_unstemmed | Electrodialysis Can Lower the Environmental Impact of Hemodialysis |
| title_short | Electrodialysis Can Lower the Environmental Impact of Hemodialysis |
| title_sort | electrodialysis can lower the environmental impact of hemodialysis |
| topic | hemodialysis electrodialysis demineralization rate specific energy consumption reverse osmosis rejects |
| url | https://www.mdpi.com/2077-0375/12/1/45 |
| work_keys_str_mv | AT ahmedabarkan electrodialysiscanlowertheenvironmentalimpactofhemodialysis AT nabilgrimi electrodialysiscanlowertheenvironmentalimpactofhemodialysis AT hubertmetayer electrodialysiscanlowertheenvironmentalimpactofhemodialysis AT tariksqallihoussaini electrodialysiscanlowertheenvironmentalimpactofhemodialysis AT cecilelegallais electrodialysiscanlowertheenvironmentalimpactofhemodialysis |