Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience

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dc.contributor.authorLei, Mei
dc.contributor.authorDong, Ziping
dc.contributor.authorJiang, Ying
dc.contributor.authorLonghurst, Philip
dc.contributor.authorWan, Xiaoming
dc.contributor.authorZhou, Guangdong
dc.date.accessioned2019-04-08T13:32:25Z
dc.date.available2019-04-08T13:32:25Z
dc.date.issued2019-03-28
dc.description.abstractLarge quantities of contaminated biomass due to phytoremediation were disposed through combustion in low-income rural regions of China. This process provided a solution to reduce waste volume and disposal cost. Pilot-scale combustion trials were conducted for in site disposal at phytoremediation sites. The reaction mechanism of arsenic capture during pilot-scale combustion should be determined to control the arsenic emission in flue gas. This study investigated three Pteris vittata L. biomass with a disposal capacity of 600 kg/d and different arsenic concentrations from three sites in China. The arsenic concentration in flue gas was greater than that of the national standard in the trial with no emission control, and the arsenic concentration in biomass was 486 mg/kg. CaO addition notably reduced arsenic emission in flue gas, and absorption was efficient when CaO was mixed with biomass at 10% of the total weight. For the trial with 10% CaO addition, arsenic recovery from ash reached 76%, which is an ∼8-fold increase compared with the control. Synchrotron radiation analysis confirmed that calcium arsenate is the dominant reaction product.en_UK
dc.identifier.citationLei M, Dong Z, Jiang Y, et al., (2019) Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience. Frontiers of Environmental Science and Engineering, Volume 13, Issue 2, April 2019, Article number 24en_UK
dc.identifier.issn2095-2201
dc.identifier.urihttps://doi.org/10.1007/s11783-019-1110-y
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14057
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectArsenic contaminationen_UK
dc.subjectPhytoremediationen_UK
dc.subjectEmission controlen_UK
dc.subjectCalcium-based sorbenten_UK
dc.subjectBiomass disposalen_UK
dc.subjectPilot-scale combustionen_UK
dc.titleReaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experienceen_UK
dc.typeArticleen_UK

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