Estimation of contribution rate derived soil component in sewage sludge ash using chemical mass balance of plagioclase by X-ray diffraction

Two sewage sludge ash (SSA) samples were analyzed using X-ray fluorescence spectrometry and X-ray diffractometry, and a chemical mass balance method was employed to estimate the contribution of soil-derived components. Plagioclase in the SSA samples, which originates only from soil, was used as a fi...

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Bibliographic Details
Published in:Journal of material cycles and waste management 2023-11, Vol.25 (6), p.3690-3698
Main Authors: Ohbuchi, Atsushi, Kobayashi, Tsutomu, Koike, Yuya, Nakamura, Toshihiro
Format: Article
Language:English
Subjects:
Aluminum
Ashes
Cement hydration
Civil Engineering
Coagulants
Drainage
Engineering
Environmental Management
Landfill
Mass balance
Original Article
Phosphorus
Plagioclase
Sewage disposal
Sewage sludge
Sludge
Soils
Spectrometry
Waste Management/Waste Technology
Water treatment
X-ray diffraction
X-ray fluorescence
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Summary:Two sewage sludge ash (SSA) samples were analyzed using X-ray fluorescence spectrometry and X-ray diffractometry, and a chemical mass balance method was employed to estimate the contribution of soil-derived components. Plagioclase in the SSA samples, which originates only from soil, was used as a fingerprint for the crystalline phase to determine the relative contribution of soil components in each sample. Specifically, an average of 18% of total mass was found to be plagioclase in soil samples collected at 35 sites in the drainage collection district, and this value was used to estimate the contributions of other SSA soil components. The contributions of the soil to SSA A and B were approximately 50 and 80 mass%, respectively. The crystalline phases of the two SSAs were found to consist of different components such as phosphate crystalline phases. These results suggest that the coagulant composition may influence SSA content, including the soil-derived components.
ISSN:1438-4957
1611-8227
DOI:10.1007/s10163-023-01788-4