title: Synthesis of Nanoporous Adsorbents Using Alum Sludge.
abstract: This study optimizes the synthesis process of pellet-type adsorbents using alum sludge. The effect of the binder and heat treatment temperature on the nanopore formation in the adsorbent is investigated. The pellet-type adsorbent prepared using the powder-type sludge from water treatment is determined to be a material that contains nanopores. The specific surface area is increased significantly after the calcination process in the range of 132-172 m2/g. With the calcination treatment, the breakthrough time in the formaldehyde adsorption increases remarkably with an optimum calcination temperature of 400 °C. The breakthrough capacity of the formaldehyde increases to a maximum 2.96 mg/g at this temperature.
authors.forename: Nayoung
authors.initials: N
authors.lastname: Park
authors.forename: Junghyun
authors.initials: J
authors.lastname: Bae
authors.forename: Kim
authors.initials: K
authors.lastname: Goun
authors.forename: Jong-Ki
authors.initials: JK
authors.lastname: Jeon
authors.forename: Young-Kwon
authors.initials: YK
authors.lastname: Park
authors.forename: Choul-Ho
authors.initials: CH
authors.lastname: Lee