Residual organic matter and microbial respiration in bottom ash: Effects on metal leaching and eco-toxicity.
(2015) In Waste Management & Research 33(9). p.805-811- Abstract
- A common assumption regarding the residual organic matter, in bottom ash, is that it does not represent a significant pool of organic carbon and, beyond metal-ion complexation process, it is of little consequence to evolution of ash/leachate chemistry. This article evaluates the effect of residual organic matter and associated microbial respiratory processes on leaching of toxic metals (i.e. arsenic, copper, chromium, molybdenum, nickel, lead, antimony and zinc), eco-toxicity of ash leachates. Microbial respiration was quantified with help of a respirometric test equipment OXITOP control system. The effect of microbial respiration on metal/residual organic matter leaching and eco-toxicity was quantified with the help of batch leaching... (More)
- A common assumption regarding the residual organic matter, in bottom ash, is that it does not represent a significant pool of organic carbon and, beyond metal-ion complexation process, it is of little consequence to evolution of ash/leachate chemistry. This article evaluates the effect of residual organic matter and associated microbial respiratory processes on leaching of toxic metals (i.e. arsenic, copper, chromium, molybdenum, nickel, lead, antimony and zinc), eco-toxicity of ash leachates. Microbial respiration was quantified with help of a respirometric test equipment OXITOP control system. The effect of microbial respiration on metal/residual organic matter leaching and eco-toxicity was quantified with the help of batch leaching tests and an eco-toxicity assay - Daphnia magna. In general, the microbial respiration process decreased the leachate pH and eco-toxicity, indicating modification of bioavailability of metal species. Furthermore, the leaching of critical metals, such as copper and chromium, decreased after the respiration in both ash types (fresh and weathered). It was concluded that microbial respiration, if harnessed properly, could enhance the stability of fresh bottom ash and may promote its reuse. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5442660
- author
- Ilyas, Aamir LU ; Persson, Kenneth M LU and Persson, Magnus LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Waste Management & Research
- volume
- 33
- issue
- 9
- pages
- 805 - 811
- publisher
- SAGE Publications
- external identifiers
-
- pmid:25999368
- wos:000360005400005
- scopus:84939560076
- pmid:25999368
- ISSN
- 1096-3669
- DOI
- 10.1177/0734242X15585343
- language
- English
- LU publication?
- yes
- id
- fc258146-c6d2-452a-a3a5-78f743f30bac (old id 5442660)
- date added to LUP
- 2016-04-01 11:07:32
- date last changed
- 2022-04-12 20:38:19
@article{fc258146-c6d2-452a-a3a5-78f743f30bac,
abstract = {{A common assumption regarding the residual organic matter, in bottom ash, is that it does not represent a significant pool of organic carbon and, beyond metal-ion complexation process, it is of little consequence to evolution of ash/leachate chemistry. This article evaluates the effect of residual organic matter and associated microbial respiratory processes on leaching of toxic metals (i.e. arsenic, copper, chromium, molybdenum, nickel, lead, antimony and zinc), eco-toxicity of ash leachates. Microbial respiration was quantified with help of a respirometric test equipment OXITOP control system. The effect of microbial respiration on metal/residual organic matter leaching and eco-toxicity was quantified with the help of batch leaching tests and an eco-toxicity assay - Daphnia magna. In general, the microbial respiration process decreased the leachate pH and eco-toxicity, indicating modification of bioavailability of metal species. Furthermore, the leaching of critical metals, such as copper and chromium, decreased after the respiration in both ash types (fresh and weathered). It was concluded that microbial respiration, if harnessed properly, could enhance the stability of fresh bottom ash and may promote its reuse.}},
author = {{Ilyas, Aamir and Persson, Kenneth M and Persson, Magnus}},
issn = {{1096-3669}},
language = {{eng}},
number = {{9}},
pages = {{805--811}},
publisher = {{SAGE Publications}},
series = {{Waste Management & Research}},
title = {{Residual organic matter and microbial respiration in bottom ash: Effects on metal leaching and eco-toxicity.}},
url = {{http://dx.doi.org/10.1177/0734242X15585343}},
doi = {{10.1177/0734242X15585343}},
volume = {{33}},
year = {{2015}},
}