Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150391
Title: Human exposure and risk assessment of recycling incineration bottom ash for land reclamation : a showcase coupling studies of leachability, transport modeling and bioaccumulation
Authors: Yin, Ke
Chan, Wei Ping
Dou, Xiaomin
Ahamed, Ashiq
Lisak, Grzegorz
Chang, Victor Wei-Chung
Keywords: Engineering::Environmental engineering
Issue Date: 2019
Source: Yin, K., Chan, W. P., Dou, X., Ahamed, A., Lisak, G. & Chang, V. W. (2019). Human exposure and risk assessment of recycling incineration bottom ash for land reclamation : a showcase coupling studies of leachability, transport modeling and bioaccumulation. Journal of Hazardous Materials, 385, 121600-. https://dx.doi.org/10.1016/j.jhazmat.2019.121600
Journal: Journal of Hazardous Materials 
Abstract: Incineration bottom ash (IBA) faces challenges for its sustainable recycling due to the absence of scenario-specific risk assessment. Environmental risk assessment was carried out via a case study incorporating key factors to dominate human exposures during IBA utilization in land reclamation. Three research components echoing respective IBA leaching, exposures, and consequences were performed under a supportive framework to elaborate these interlinked key factors and unveil the potential environmental risks. IBA leachability was firstly investigated using various laboratory standard leaching methods while conducted a large-scale field trial experiment for mutual confirmation, suggesting that maximum leached amounts may be achieved when liquid to solid (L/S) ratio increases to 10. Dilution and transportation models were both developed to discriminate the mitigation of IBA leachate between two periods i.e. during and after land reclamation, suggesting that dilution rather than transportation may dominate the environmental impact for metal exposures. Metal bioaccumulation from a typical mollusk species was performed coupling the calculated dietary safety limits based on Singaporean diet intake for development of the threshold of toxicology concerns on human exposures. With such, IBA benign usage in land reclamation was also conferred in the form of distance and dilution factor.
URI: https://hdl.handle.net/10356/150391
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2019.121600
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Journal of Hazardous Materials and is made available with permission of Elsevier B.V.
Fulltext Permission: embargo_20220312
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles
NEWRI Journal Articles

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