Conversion of solid waste to activated carbon to improve landfill sustainability

Date

2018-07-30

Advisors

Journal Title

Journal ISSN

ISSN

0734242X

Volume Title

Publisher

Sage Publications

Type

Article

Peer reviewed

Yes

Abstract

Landfills’ heterogeneous composites waste were evaluated as precursors for generation of activated carbon (AC). A single step chemical activation process was applied involving irradiation with microwave energy and impregnation with KOH. The average percentage yield of AC from active landfill precursor was higher than that from closed landfill for all depths sampled. Increase in impregnation ratio and irradiation power decreased the average percentage yield for both landfill precursors (Active: 38.1 to 33.1%) (Closed 42.1: to 33.3%). The optimum pH range for adsorption of methylene blue was pH 6-7, while adsorption increased with increase in temperature over the range 30 to 50oC. Carbonyl and hydroxyl groups were the major functional groups on the surface of AC. The properties of the AC are potentially suitable for the removal of cationic dyes and pollutants. AC generated from the landfill composite were comparable to that from some other biomass being managed through AC generation. This is the first report to demonstrate the possible reuse of landfill composite as AC. The reuse option of landfill composite could provide a means of sustainable management of landfilled municipal waste.

Description

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.

Keywords

adsorption capacity, activated carbon, landfill composites, microwave heating

Citation

Adelopo, A. O. et al. (2018) Conversion of solid waste to activated carbon to improve landfill sustainability. Waste Management & Research, 36 (8), pp. 708-718

Rights

Research Institute

Institute for Allied Health Sciences Research
Leicester Institute for Pharmaceutical Innovation - From Molecules to Practice (LIPI)