TY - JOUR
T1 - Configuration of an efficient seawater pretreatment system for simultaneous organic and particulate matters removal
AU - Hyun, Kil Soo
PY - 2011/9
Y1 - 2011/9
N2 - In this study, the high-rate fibre filter (HRF) using the fibre media and the biological aerated filter (BAF) followed by granular media filter (GMF) using anthracite and granular activated carbon (GAC) was evaluated as an effective pre-treatment for simultaneous organic and particulate matter removal. As a result, the HRF bed was more effective in reducing particulate matters, while the BAF bed was effective in reducing conventional pollutants as well as particulate matters. The performance results of combined HRF/BAF/GMF system in terms of pollutants and headloss achieved 12-35% higher reduction and about 1.7 times slower development than those of the combined HRF/ GMF system. The performance of combined HRF/BAF system (FV 30/3 m/h) followed by GAC filter (FV 5 m/h) showed an excellent removal results of >80% for organics and nutrients and >90% for particulate matters, which typically cause membrane biofouling and colloidal fouling. This reveals that combined HRF/BAF/GMF system is an effective pretreatment system to control and reduce the extent of membrane fouling compared to conventional coagulation-granular filtration.
AB - In this study, the high-rate fibre filter (HRF) using the fibre media and the biological aerated filter (BAF) followed by granular media filter (GMF) using anthracite and granular activated carbon (GAC) was evaluated as an effective pre-treatment for simultaneous organic and particulate matter removal. As a result, the HRF bed was more effective in reducing particulate matters, while the BAF bed was effective in reducing conventional pollutants as well as particulate matters. The performance results of combined HRF/BAF/GMF system in terms of pollutants and headloss achieved 12-35% higher reduction and about 1.7 times slower development than those of the combined HRF/ GMF system. The performance of combined HRF/BAF system (FV 30/3 m/h) followed by GAC filter (FV 5 m/h) showed an excellent removal results of >80% for organics and nutrients and >90% for particulate matters, which typically cause membrane biofouling and colloidal fouling. This reveals that combined HRF/BAF/GMF system is an effective pretreatment system to control and reduce the extent of membrane fouling compared to conventional coagulation-granular filtration.
KW - BAF
KW - Granular media filter
KW - High-rate fibre filter
KW - Seawater pretreatment
UR - http://www.scopus.com/inward/record.url?scp=80054891963&partnerID=8YFLogxK
U2 - 10.5004/dwt.2011.2654
DO - 10.5004/dwt.2011.2654
M3 - Article
AN - SCOPUS:80054891963
SN - 1944-3994
VL - 33
SP - 295
EP - 299
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
IS - 1-3
ER -