title: Experimental study on non-woven filamentous fibre micro-filter with high filtration speed.
abstract: A laboratory study was undertaken to pursue the filter performance of a micro-filter module employing highly porous fibre media under a high filtration rate (≥1,500 m/day), faster than that of any conventional filter process. The effects of filtration rate, head loss, raw water turbidity, and filter aid chemicals on filter performance were analysed. In spite of the extremely high filtration rate, the filter achieved an attractive efficiency, reducing the raw water turbidity by over 80%. As with other filter systems, the filter aid used ((polyaluminium chloride (PAC)) greatly affected the performance of this particular fibre filter. Long-term repetitive runs were additionally carried out to confirm the reproducibility of the filter performance. Also, a comparison was carried out with other high-rate filter systems which are either being tested for use in experimental studies, or are already commercially available. This study reveals that the filter performance under a high filtration speed is still attractive especially as PAC is used. Due to the high porosity of the fibre, the filter had small head loss even though the filtration rate was high. These results ascertain that it is possible to operate the filters with high filtration rate achieving reliable treatment performance.
authors.affiliation: Department of Environmental Engineering, Hanseo University, Seosan 356-706 Korea E-mail: ykim@hanseo.ac.kr.
authors.forename: Siping
authors.initials: S
authors.lastname: Niu
authors.affiliation: Department of Environmental Engineering, Hanseo University, Seosan 356-706 Korea E-mail: ykim@hanseo.ac.kr.
authors.forename: Kisoo
authors.initials: K
authors.lastname: Park
authors.affiliation: Department of Civil Engineering, University of Santo Tomas, España Blvd, Manila 1008 Philippines.
authors.forename: Heidi B
authors.initials: HB
authors.lastname: Guerra
authors.affiliation: Department of Environmental Engineering, Hanseo University, Seosan 356-706 Korea E-mail: ykim@hanseo.ac.kr.
authors.forename: Youngchul
authors.initials: Y
authors.lastname: Kim
mesh_terms: D000536:Aluminum Hydroxide / Q000737:chemistry*; D005374:Filtration / Q000295:instrumentation*; D016062:Porosity; D015203:Reproducibility of Results; D014867:Water; D018508:Water Purification / Q000295:instrumentation*
chemical_list: D014867:Water; C016213:aluminum oxychloride; D000536:Aluminum Hydroxide