Sequestering atmospheric CO2 inorganically: a solution for Malaysia's CO2 emission

M. Ehsan Jorat*, Maniruzzaman A. Aziz, Aminaton Marto, Nabilah Zaini, Siti Norafida Jusoh, David A. C. Manning

*Corresponding author for this work

    Research output: Contribution to journalSpecial issuepeer-review

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    Malaysia is anticipating an increase of 68.86% in CO2 emission in 2020, compared with the 2000 baseline, reaching 285.73 million tonnes. A major contributor to Malaysia's CO2 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 CO2 ha(-1) year(-1). Unlike organic CO2 sequestration in soil, inorganic sequestration of CO2 through mineral carbonation, once formed, is considered as a permanent sink. Inorganic CO2 sequestration in Malaysia has not been extensively studied, and the country's potential for using the technique for atmospheric CO2 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 CO2 sequestration. This project introduces a potential solution for sequestering atmospheric CO2 inorganically for Malaysia. If lands associated to future developments in Malaysia are designed for inorganic CO2 sequestration using demolition concrete waste, basalt quarry fine, and fly and bottom ashes, 597,465 tonnes of CO2 can be captured annually adding a potential annual economic benefit of (sic)4,700,000.

    Original languageEnglish
    Article number483
    Number of pages14
    JournalGeosciences (Switzerland)
    Issue number12
    Early online date14 Dec 2018
    Publication statusPublished - 14 Dec 2018


    • CO2 emission
    • Malaysia
    • Inorganic CO2 sequestration
    • Demolition concrete waste
    • Basalt quarry fine
    • Fly and bottom ash

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