Hybrid of Adsorption and Nanofiltration Processes as a Capable Removal Method for HANs Removal

•The effectiveness of adsorption, ultrafiltration (UF) and nano-filtration (NF) processes has been investigated and hybrid processes have been evaluated.•The results of thermodynamic analysis showed that the sign of Gibbs free energy changes is negative.•The hybrid filtration process of UF, adsorpti...

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Veröffentlicht in:South African journal of chemical engineering 2021-04, Vol.36, p.1-7
Hauptverfasser: Vaziri, Mohsen, Tabatabaee Ghomsheh, Seyed Mostafa, Azimi, Alireza, Mirzaei, Masoomeh
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Sprache:eng
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Zusammenfassung:•The effectiveness of adsorption, ultrafiltration (UF) and nano-filtration (NF) processes has been investigated and hybrid processes have been evaluated.•The results of thermodynamic analysis showed that the sign of Gibbs free energy changes is negative.•The hybrid filtration process of UF, adsorption and NF has very well exceeded the standards of drinking water in Iran•The pollution indicators of DBPs to the global standards of drinking water provided by the Environmental Protection Agency (EPA). In the present study, treatment of Halostonitriles (HANs) contaminated water has been investigated. These materials are a new generation of disinfectant by-products (DBPs) that result from the halogenation of nitrogen by-products. Hybrid treatment method is one of the most effective methods with high performance efficiency for removal of contaminants such as HANs, which has been evaluated in this study. In the present study, performance of the adsorption process, ultrafiltration process (UF) and nano-filtration (NF) process have been investigated. In this regard, the thermodynamic changes of process, the adsorption of contaminants in a fixed bed and under continuous operating process, the rate of membrane permeability, the effect of flow rate, the effect of feed inlet concentration and finally complementary method as hybrid process were studied.
ISSN:1026-9185
DOI:10.1016/j.sajce.2020.12.002