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Insight Into the Fate of Metal Ions in Response to the Refined Classification and Transformation Order of Dissolved Organic Matter Components During Municipal Solid Waste Composting by Yan Wang; Beidou Xi; Yanhong Li; Qiuling Dang; Chuanyan Zhang; Xinyu Zhao is a Environmental Science article available to read on EtoBox.

What is Insight Into the Fate of Metal Ions in Response to the Refined Classification and Transformation Order of Dissolved Organic Matter Components During Municipal Solid Waste Composting about?

The refined classification and subtle transformation order of dissolved organic matter (DOM) components may govern the fate of metal ions (MIs) during composting. However, the classification of DOM components is still rough and the fate of MIs in response to the refined transformation order of DOM during municipal solid waste composting (MSWC) has not been studied. Here, the refined classification and evolution order of DOM components were redefined by two-dimensional correlation spectroscopy (2DCOS) analysis. Eight DOM components were redefined and their evolution order was: tyrosine-like (peak B)>humic acid-like (peak C1>peak C2)>terrestrial humic-like with small molecular size (peak A)>UVA humic-like with medium molecular size (peak D2)>UVC humic-like with medium molecular size (peak D1)>UVA humic-like with large molecular size (peak E2)>UVC humic-like with large molecular size (peak E1). Na and As were releasing in the whole process of DOM transformation. Cu and Al showed strong affinity with humic-like fraction, the anabolism of which leading to storage of Cu and Al in compost. Si, Fe, Mn, Co, Zn, Ni, Sr, Mg and Cr tend to combine with humic-like fraction with small molecular

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Author

Yan Wang; Beidou Xi; Yanhong Li; Qiuling Dang; Chuanyan Zhang; Xinyu Zhao

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)