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Sequestering atmospheric CO₂ inorganically: A solution for Malaysia’s CO₂ emission

Lookup NU author(s): Dr Ehsan Jorat, Professor David ManningORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Malaysia is anticipating an increase of 68.86% in CO 2 emission in 2020, compared with the 2000 baseline, reaching 285.73 million tonnes. A major contributor to Malaysia’s CO 2 emissions is coal-fired electricity power plants, responsible for 43.4% of the overall emissions. Malaysia’s forest soil offers organic sequestration of 15 tonnes of CO 2 ha −1 ·year −1 . Unlike organic CO 2 sequestration in soil, inorganic sequestration of CO 2 through mineral carbonation, once formed, is considered as a permanent sink. Inorganic CO 2 sequestration in Malaysia has not been extensively studied, and the country’s potential for using the technique for atmospheric CO 2 removal is undefined. In addition, Malaysia produces a significant amount of solid waste annually and, of that, demolition concrete waste, basalt quarry fine, and fly and bottom ashes are calcium-rich materials suitable for inorganic CO 2 sequestration. This project introduces a potential solution for sequestering atmospheric CO 2 inorganically for Malaysia. If lands associated to future developments in Malaysia are designed for inorganic CO 2 sequestration using demolition concrete waste, basalt quarry fine, and fly and bottom ashes, 597,465 tonnes of CO 2 can be captured annually adding a potential annual economic benefit of €4,700,000.

Publication metadata

Author(s): Jorat ME, Aziz MA, Marto A, Zaini N, Jusoh SN, Manning DAC

Publication type: Article

Publication status: Published

Journal: Geosciences (Switzerland)

Year: 2018

Volume: 8

Issue: 12

Online publication date: 14/12/2018

Acceptance date: 11/12/2018

Date deposited: 18/03/2019

ISSN (electronic): 2076-3263

Publisher: MDPI AG

URL: https://doi.org/10.3390/geosciences8120483

DOI: 10.3390/geosciences8120483

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