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Feasibility of Using NaCl to Reduce Membrane Fouling in Anaerobic Membrane Bioreactors
The objective of this research study is to assess the feasibility of naturally occurring Na+ ions in wastewater as a possible coagulant to control the fouling of AnMBR under high salinity conditions. A multi‐bladed stirrer was installed in the reactor, which aimed at providing a good mixing condition for inducing coagulation. The rotation speed of the stirrer was set at 30 rpm for achieving the coagulation effect. A sludge was cultured in a saline environment with sodium concentration as high as 13 g/L. It was observed that, the applied conditions could not provide a high saline sludge with a good filterability. In addition, results of Fourier transform infrared spectroscopy showed that the functional groups of the cake layer formed by the saline sludge was similar to that of non‐saline sludge, therefore, the high salinity should promote the formation of a gel layer.
Feasibility of Using NaCl to Reduce Membrane Fouling in Anaerobic Membrane Bioreactors
The objective of this research study is to assess the feasibility of naturally occurring Na+ ions in wastewater as a possible coagulant to control the fouling of AnMBR under high salinity conditions. A multi‐bladed stirrer was installed in the reactor, which aimed at providing a good mixing condition for inducing coagulation. The rotation speed of the stirrer was set at 30 rpm for achieving the coagulation effect. A sludge was cultured in a saline environment with sodium concentration as high as 13 g/L. It was observed that, the applied conditions could not provide a high saline sludge with a good filterability. In addition, results of Fourier transform infrared spectroscopy showed that the functional groups of the cake layer formed by the saline sludge was similar to that of non‐saline sludge, therefore, the high salinity should promote the formation of a gel layer.
Feasibility of Using NaCl to Reduce Membrane Fouling in Anaerobic Membrane Bioreactors
Yang, Jixiang (author) / Tian, Zheng (author) / Spanjers, Henri (author) / van Lier, Jules B. (author)
Water Environment Research ; 86 ; 340-345
2014-04-01
6 pages
Article (Journal)
Electronic Resource
English
anaerobic , coagulation , fouling , Sodium , membrane
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