Contribution information
| Title | Cleaning Polyelectrolyte Multilayer Nanofiltration Membranes after Brewery Byproduct Filtration |
| Status | Accepted |
| Final type | Poster |
| Final session | PERMEA 2022 - Drinking and wastewater treatment |
| Authors |
Á., Bóna1,
I., Galambos2,
B., Hegyesné Vecseri3,
N., Nemestothy4
1 Soós Research and Development Center, University of Pannonia , Nagykanizsa, Hungary
2 University of Pannonia, Nagykanizsa, Hungary
3 Department of Research and Development, Pécsi Brewery, Pécs, Hungary
4 University of Pannonia, Veszprém, Hungary
|
| Uploaded abstract | link |
| Brief content | Polyelectrolyte multilayer NF membranes have been available in the past few years as alternatives to polyamide and polyimide NF membranes as commercial products. They exhibit low fouling behavior, which, combined with the hollow fiber geometry, makes them and interesting candidate for wastewater applications. However, the scientific literature about their cleaning procedure is limited. Anionic surfactants, which are commonly used as cleaning agents for thin film composite NF and RO membranes, cause irreversible damage to the polyelectrolyte complex active layer. We compare various cleaning procedures involving acidic, caustic and hypochlorite solutions (which are recommended for these membranes) to the efficiency of non-ionic surfactants, using brewers' spent grain filtrate as foulant. |
| ID | 498 |