| Title |
Landfill Leachate Treatment by Using Second-Hand Reverse Osmosis Membranes: Long-Term Case Study in a Full-Scale Operating Facility |
| ID_Doc |
22561 |
| Authors |
García-Pacheco, R; Galizia, A; Toribio, S; Gabarró, J; Molina, S; Landaburu-Aguirre, J; Molina, F; Blandin, G; Monclús, H; Rodríguez-Roda, I; Comas, J |
| Title |
Landfill Leachate Treatment by Using Second-Hand Reverse Osmosis Membranes: Long-Term Case Study in a Full-Scale Operating Facility |
| Year |
2022 |
| Published |
Membranes, 12.0, 11 |
| DOI |
10.3390/membranes12111170 |
| Abstract |
Landfill leachate (LFL) has a complex inorganic, organic and microbiological composition. Although pressure-driven membrane technology contributes to reaching the discharge limits, the need for frequent membrane replacement (typically every 1-3 years) is an economical and environmental limitation. The goal of this work is to evaluate the feasibility of using second-hand reverse osmosis (RO) membranes to treat LFL in an industrially relevant environment. End-of-life RO membranes discarded from a seawater desalination plant were first tested with brackish water and directly reused or regenerated to fit with requirements for LFL treatment. A laboratory scale test of second-hand membrane reuse was carried out using ultrafiltered LFL. Then, a long-term test in an LFL full-scale facility was performed, where half of the membranes of the facility were replaced. The industrial plant was operated for 27 months with second-hand membranes. The permeate water quality fit the required standards and the process showed a trend of lower energy requirement (up to 12 bar lower transmembrane pressure and up to 9% higher recovery than the average of the previous 4 years). Direct reuse and membrane regeneration were successfully proven to be an alternative management to landfill disposal, boosting membranes towards the circular economy. |
| Author Keywords |
landfill leachate; second-hand membranes; aged membranes; end-of-life; regeneration; reuse; reverse osmosis; circular-economy; sustainability; life span |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000895661000001 |
| WoS Category |
Biochemistry & Molecular Biology; Chemistry, Physical; Engineering, Chemical; Materials Science, Multidisciplinary; Polymer Science |
| Research Area |
Biochemistry & Molecular Biology; Chemistry; Engineering; Materials Science; Polymer Science |
| PDF |
https://www.mdpi.com/2077-0375/12/11/1170/pdf?version=1669102845
|