title: Mg/Al layered double hydroxide for bacteriophage removal in aqueous solution.
abstract: The objective of this study was to investigate the removal of bacteriophages in Mg/Al layered double hydroxide (LDH). Batch experiments were performed with bacteriophage MS2 in a powder form of Mg/Al LDH under various LDH doses. Column experiments were also performed under flow-through condition with bacteriophages MS2 and phiX174 in Mg/Al LDH immobilized on sand surfaces. Batch tests demonstrated that the powder form of Mg/Al LDH was effective in removing MS2 with the removal capacity of 2.2 × 10(8) plaque forming unit (pfu)/g under the given experimental conditions (LDH dose = 2 g/L; initial MS2 concentration = 4.61 × 10(5) pfu/mL). Column experiments showed that the log removal of phiX174 was 4.40 in columns containing 100% Mg/Al LDH-coated sand while it was 0.05 in 100% quartz sand. These findings indicated that Mg/Al LDH-coated sand was effective in removing bacteriophages compared with sand. A more than 4 log removal (=5.44) of MS2 was achieved in 100% Mg/Al LDH-coated sand. This study demonstrates the potential application of Mg/Al LDH for virus removal in water treatment.
authors: Environmental Biocolloid Engineering Laboratory, Seoul National University, Seoul, Korea.
authors: Jae-Hyun
authors: JH
authors: Kim
authors: Jeong-Ann
authors: JA
authors: Park
authors: Song-Bae
authors: SB
authors: Kim
mesh_terms: D000536:Aluminum Hydroxide; D010584:Bacteriophage phi X 174 / Q000302:isolation & purification*; D004338:Drug Combinations; D017909:Levivirus / Q000302:isolation & purification*; D008276:Magnesium Hydroxide; D011791:Quartz; D014873:Water Pollutants / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D004338:Drug Combinations; D014873:Water Pollutants; D011791:Quartz; C013591:aluminum hydroxide, magnesium hydroxide, drug combination; D000536:Aluminum Hydroxide; D008276:Magnesium Hydroxide