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@article{1229129,
author = {Maňáková, Blanka and Kuta, Jan and Svobodová, Markéta and Hofman, Jakub},
article_location = {AMSTERDAM},
article_number = {SEP 2014},
doi = {http://dx.doi.org/10.1016/j.jhazmat.2014.08.024},
keywords = {Sludge; Arsenic; Composting; Vermicomposting; Bioavailability},
language = {eng},
issn = {0304-3894},
journal = {JOURNAL OF HAZARDOUS MATERIALS},
title = {Effects of combined composting and vermicomposting of waste sludge on arsenic fate and bioavailability},
url = {http://www.sciencedirect.com/science/article/pii/S0304389414006803},
volume = {280},
year = {2014}
}
TY - JOUR
ID - 1229129
AU - Maňáková, Blanka - Kuta, Jan - Svobodová, Markéta - Hofman, Jakub
PY - 2014
TI - Effects of combined composting and vermicomposting of waste sludge on arsenic fate and bioavailability
JF - JOURNAL OF HAZARDOUS MATERIALS
VL - 280
IS - SEP 2014
SP - 544-551
EP - 544-551
PB - ELSEVIER SCIENCE BV
SN - 03043894
KW - Sludge
KW - Arsenic
KW - Composting
KW - Vermicomposting
KW - Bioavailability
UR - http://www.sciencedirect.com/science/article/pii/S0304389414006803
L2 - http://www.sciencedirect.com/science/article/pii/S0304389414006803
N2 - Composting and vermicomposting are traditional processes for the treatment of sludge. During these processes, the humification of organic matter has a significant effect on the physicochemical form and distribution of heavy metals. In this study, industrial sludge (groundwater treatment waste) contaminated by arsenic (396 +/- 1 mg kg(-1)) was used. Such sludge poses a significant challenge with respect to effective treatment. Composting, vermicomposting (with Eisenia fetida), and the combined approach of composting and vermicomposting were performed to determine the evolution of arsenic speciation, mobility and bioavailability. The composting/vermicomposting was done with sludge, horse manure, and grass in the ratios of 3:6:1. A solution of 0.1 M NH4COOCH3 was used as a single extraction solvent for determination of the mobile arsenic pool and targeted arsenic species (As-III, As-V, monomethylarsenic acid - MMA(V), dimethylarsenic acid - DMA(V)). The analysis of arsenic in the extracts was carried out by means of HPLC-ICP-MS spectrometry. In addition, the earthworm species E. fetida was used for bioaccumulation tests that followed the compost and vermicompost processes. The obtained results indicate a reduction in arsenic mobility and bioavailability in all matured composts and vermicomposts. The combined process exhibited a greater effect than compost or vermicompost alone. (C) 2014 Elsevier B.V. All rights reserved.
ER -
MAŇÁKOVÁ, Blanka, Jan KUTA, Markéta SVOBODOVÁ a Jakub HOFMAN. Effects of combined composting and vermicomposting of waste sludge on arsenic fate and bioavailability. \textit{JOURNAL OF HAZARDOUS MATERIALS}. AMSTERDAM: ELSEVIER SCIENCE BV, 2014, roč.~280, SEP 2014, s.~544-551. ISSN~0304-3894. Dostupné z: https://dx.doi.org/10.1016/j.jhazmat.2014.08.024.
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