Fouling in Nanofiltration
نویسندگان
چکیده
Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia ph +61 2 4221 3385, fax +61 2 4221 4738, [email protected] Chemical Process Engineering Research Institute, P.O. Box 361, 57001, Thermi, Greece ph ++302310498181, fax ++302310498189 [email protected] [email protected] Chemical & Environmental Engineering, University of California, Riverside, CA 92521, USA, ph: +011-909-787-7345, fax: +011-909-787-5696, email: [email protected] Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Brazil ph +55 11 3091 7745, fax +55 11 3091 7354, [email protected] Lappeenranta University of Technology, Laboratory of Membrane Technology and Technical Polymer Chemistry, P.O.Box 20, FIN-53851 Lappeenranta, Finland ph. +358-5-621 2160, fax +358-5-621 2199, [email protected] Chapter 8 – Fouling in Nanofiltration
منابع مشابه
A physical impact of organic fouling layers on bacterial adhesion during nanofiltration.
Organic conditioning films have been shown to alter properties of surfaces, such as hydrophobicity and surface free energy. Furthermore, initial bacterial adhesion has been shown to depend on the conditioning film surface properties as opposed to the properties of the virgin surface. For the particular case of nanofiltration membranes under permeate flux conditions, however, the conditioning fi...
متن کاملHemicellulose Fouling Behaviour during Nanofiltration of Press Liquor
Nanofiltration of press liquor from viscose-type textile fibre production was investigated using a laboratory-scale cross-flow test apparatus. Feed solutions contained about 200 g/l sodium hydroxide and a high concentration of hemicellulose as a contaminant originating from the raw material wood. The effect of various pretreatments and the addition of reagents affecting the solution state of he...
متن کاملMembrane fouling in the nanofiltration of landfill leachate and its impact on trace contaminant removal
Nanofiltration (NF) is an attractive option for the treatment of landfill leachate. However, membrane fouling can be a major obstacle in the implementation of this technology. In this study, bench-scale filtration experiments were carried out to study the fouling behaviour during the NF of a synthetic landfill leachate. The results indicate that calcium in combination with organic matter could ...
متن کاملNanofiltration of synthetic and industrial dye baths: Influence of temperature on rejection and membrane fouling
Nanofiltration (NF) has become a widely accepted process not only for producing drinking water but also for recovering wastewater in industrial processes or removing pollutants from industrial wastewater effluent. In the textile industry, the treatment of various dye baths with NF at room temperature have already been studied and was found feasible at lab-scale and pilot scale. The aim of this ...
متن کاملColloidal Fouling of Nanofiltration Membranes: Development of a Standard Operating Procedure
Fouling of nanofiltration (NF) membranes is the most significant obstacle to the development of a sustainable and energy-efficient NF process. Colloidal fouling and performance decline in NF processes is complex due to the combination of cake formation and salt concentration polarization effects, which are influenced by the properties of the colloids and the membrane, the operating conditions o...
متن کاملNanofiltration flux, fouling and retention in filtering dilute model waters
Fouling of membranes decreases the applicability of the nanofiltration (NF) process, and thus a deeper understanding of membrane fouling is needed. Fouling and retention of different NF membranes by model feed waters was investigated in a laboratory-scale filtration unit. The model waters were composed so as to imitate the characteristics of chemically pre-treated surface water. No differences ...
متن کامل