Impact of high turbidity on reverse osmosis: Evaluation of pretreatment processes
| Author | Hafiz, Mhd Ammar |
| Author | Hawari, Alaa H. |
| Author | Yasir, Ahmed T. |
| Author | Alfahel, Radwan |
| Author | Hassan, Mohammad K. |
| Author | Altaee, Ali |
| Available date | 2023-02-02T04:34:12Z |
| Publication Date | 2020 |
| Publication Name | Desalination and Water Treatment |
| Resource | Scopus |
| Abstract | This study evaluates the performance of sand filtration (SF) and ultra-filtration (UF) as pretreat-ment processes for reverse osmosis (RO) for seawater with turbidities of 4.8, 23.2, and 99.7 NTU. For seawater with a turbidity of 4.8 and 23.2 NTU, the average membrane flux and the water recovery rate in the RO process did not improve significantly by pretreating the seawater using SF or UF. However, when the turbidity of seawater was 99.7 NTU, pretreating the seawater with UF improved the average membrane flux and the water recovery rate in the RO process by 5 LMH and 1.7%, respectively. Pretreatment of seawater with a turbidity of 99.7 NTU with UF reduces the specific energy demand and increases the average membrane flux and water recovery rate. |
| Sponsor | This research is made possible by NPRP award (NPRP10-0117-170176) from Qatar National Research Fund (QNRF). The statements made herein are solely the responsibility of the authors. In addition, the authors wish to thank Qatar Foundation for the financial support provided to one of the co-authors through a graduate sponsorship research award (GSRA6-1-0509-19021). We would also like to thank Central Laboratories Unit (CLU) for generating the SEM images. |
| Language | en |
| Publisher | Desalination Publications |
| Subject | Desalination Pretreatment Reverse osmosis Sand filtration Turbidity removal Ultrafiltration |
| Type | Article |
| Pagination | 96-103 |
| Volume Number | 208 |
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Civil and Environmental Engineering [851 items ]