International Journal of Environmental Science and Development

Abstract— Compost derived from cow-based manure mixed with agricultural waste was studied for four Cu fractions: exchangeable fraction (Cu-Ex), oxide-bound fraction (Cu-Ox), organically-bound fraction (Cu-Org), and residual fraction (Cu-Res). Cu-Res was found the most for entire process of composting within the range of 68.6-97.1% following by Cu-Org, Cu-Ex, and Cu-Ox indicating the high preference of more stable forms. As the organic matters were decomposed, the mobility of Cu increased corresponding with time (p<0.01) especially after reaching mature stage at day 35. Thus, composting process helped to increase the amounts of Cu. Nevertheless, using the compost to the field still needed to consider other characteristics, such as organic matter and other nutrients which should not be depleted by microorganism under too long composting.

Index Terms— Compost, BCR, Sequential extraction, Cu.

Natdhera Sanmanee is with Department of Environmental Science, Faculty of Science, Silpakorn University, Nakorn Pathom 73000 Thailand (e-mail: natdheras@gmail.com, Sanmanee_n@su.ac.th). Sirichai Nubdee was with Department of Environmental Science, Faculty of Science, Silpakorn University, Nakorn Pathom 73000 Thailand (e-mail: s.nubdee@hotmail.com).

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Cite: Natdhera Sanmanee and Sirichai Nubdee, " Effect of Composting on the Cu Speciation in Cow-Based Compost Using BCR Sequential Extraction," International Journal of Environmental Science and Development vol. 11, no. 7, pp. 322-326, 2020.

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).