A fouling suppression system in submerged membrane bioreactors using dielectrophoretic forces
| Author | Hawari, Alaa H. |
| Author | Du, Fei |
| Author | Baune, Michael |
| Author | Thöming, Jorg |
| Available date | 2023-05-23T09:39:14Z |
| Publication Date | 2015 |
| Publication Name | Journal of Environmental Sciences (China) |
| Resource | Scopus |
| Abstract | A novel method was developed to suppress membrane fouling in submerged membrane bioreactors. The method is based on the dielectrophoretic (DEP) motion of particles in an inhomogeneous electrical field. Using a real sample of biomass as feed, the fouling-suppression performance using DEP with different electrical field intensities (60-160. V) and different frequencies (50-1000. Hz) was investigated. The fouling-suppression performance was found to relate closely with the intensity and frequency of the electrical field. A stronger electrical field was found to better recover the filtrate flux. This is because of a stronger DEP force acting on the biomass particles close to the membrane's surface. Above an intensity and frequency value of 130. V and 1. kHz, respectively the permeate flux was reduced due to an electrothermal effect. 2014. |
| Sponsor | The authors wish to acknowledge Qatar University for the financial support. |
| Language | en |
| Publisher | Elsevier |
| Subject | Dielectrophoresis Fouling Inhomogeneous electric field Submerged membrane bioreactor |
| Type | Article |
| Pagination | 139-145 |
| Volume Number | 29 |
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Civil and Environmental Engineering [851 items ]