How to clean and disinfect a polyethersulfone ultrafiltration membrane?
1 answer
Pour la désinfection, utilisez une solution de peroxyde d'hydrogène (H2O2) ou d'hypochlorite de sodium (NaClO) à faible concentration, en général autour de 200 ppm, en veillant à ne pas dépasser un pH de 11 pour éviter d'endommager la membrane. Maintenez la solution en circulation pendant 30 à 60 minutes. Terminez par un rinçage à l'eau déminéralisée pour éliminer toute trace de désinfectant. Veillez à respecter les recommandations du fabricant concernant les températures et les concentrations pour éviter toute dégradation de la membrane PES.
Questions on the same topic
What industries benefit most from advanced wastewater treatment technologies ?
Last response: Les technologies avancées de traitement des eaux usées sont particulièrement bénéfiques dans plusieurs secteurs industriels. Read more
Offering filtration with a bacterial consortium seeded on lithothamne, coupled with UVc, some swimming pool algae remain intractable without chemistry. We were thinking of adding a copper electrolyser or a UV-Ox device. Is this allowed for ERPs?
Last response: Hello, to make it short there are two situations: either the swimming pool is a swimming pool, that is to say disinfected and disinfecting water (therefore de facto chlorinated), or it is an atypical... Read more
What parameters should be taken into account when choosing ultra filtration membranes?
Last response: Hello To choose the ultrafiltration membranes (material, filtration mode, etc.) and the system to be implemented (process with/without regeneration, mode and type of cleaning, etc. Read more
What is RE-USE of process water? Is it allowed in every country?
Last response: Hello, RE-USE and RE-UTE (Reuse of Treated Wastewater) are governed by French and European legislation. The recent evolution of European legislation (May 2020) opens the field of possibility for the... Read more
What is the impact of mineral ions on water purification?
Last response: Les ions minéraux jouent un rôle crucial dans les procédés de purification de l'eau, influençant divers aspects technico-chimiques. Read more
For the treatment of micropollutants, is the cost of membrane techniques higher than that of adsorption and/or oxidation solutions?
Last response: Hello, with the filter media available, there could also be a third way, that of dry filtration. This only requires the removal of micropollutants, without adding other materials. Read more
How does water nanofiltration work?
Last response: La nanofiltration de l'eau repose sur une membrane semi-perméable qui permet le passage de l'eau et de certains ions tout en retenant les particules plus grandes et les solutés spécifiques. Read more
Is water with turbidity greater than 10 NTU and MO greater than 15 suitable for the ultrafiltration process?
Last response: Hello, Ultrafiltration can be adapted to the treatment of this water; however, the maximum turbidity must be validated (average and peak values / the limits are around 100 and 300 mg/l respectively). Read more
What is the procedure for cleaning the membranes?
Last response: Hello, I invite you to refer to the manufacturer's recommendations: the cleaning procedures may differ depending on the membranes and the quality of the water treated.
What is the correct procedure for feeding spiral wound membranes for leachate? In parallel or in series?
Last response: La configuration optimale pour l'alimentation des membranes spiralées, notamment dans le traitement des lixiviats, dépend de plusieurs facteurs, tels que la qualité du lixiviat, la pression requise... Read more