| contributor author | Meng-Wei Wan | |
| contributor author | Hui-Ling Yang | |
| contributor author | Cheng-Hung Chang | |
| contributor author | Febelyn Reguyal | |
| contributor author | Chi-Chuan Kan | |
| date accessioned | 2017-05-08T21:42:00Z | |
| date available | 2017-05-08T21:42:00Z | |
| date copyright | March 2012 | |
| date issued | 2012 | |
| identifier other | %28asce%29ee%2E1943-7870%2E0000415.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/59831 | |
| description abstract | Precoagulation is one of the effective pretreatments in membrane filtration. This process mitigates membrane fouling, which is the major drawback of membrane technology in drinking water and wastewater treatment. This study investigated the effects of precoagulation under different coagulation mechanisms on membrane fouling. Use of ultrasound in polytetrafluoroethylene (PTFE) membrane cleaning was also evaluated. In precoagulation, synthetic raw water was precoagulated using aluminum sulfate at different coagulation mechanisms, named electrostatic patch effect (EPE), charge neutralization (CN), and sweep flocculation (SW). Flocs produced from different coagulation mechanisms exhibited different sizes, structures, and strengths. Likewise, the fouling type generated from each mechanism was demonstrated as pore blocking for EPE, cake formation for SW, and combination phenomenon for CN. Moreover, this study indicated that the membrane flux was enhanced in the sequence of | |
| publisher | American Society of Civil Engineers | |
| title | Fouling Elimination of PTFE Membrane under Precoagulation Process Combined with Ultrasound Irradiation | |
| type | Journal Paper | |
| journal volume | 138 | |
| journal issue | 3 | |
| journal title | Journal of Environmental Engineering | |
| identifier doi | 10.1061/(ASCE)EE.1943-7870.0000406 | |
| tree | Journal of Environmental Engineering:;2012:;Volume ( 138 ):;issue: 003 | |
| contenttype | Fulltext | |
