Toxicity assessment of untreated/treated electroplating sludge using human and plant bioassay.
| Autor: | Orescanin V; a Orescanin Ltd., A. Jaksica , Zagreb , Croatia., Durgo K; b Faculty of Food Technology and Biotechnology, Laboratory for Biology and Microbial Genetics , Kršnjavoga, Zagreb , Croatia., Mikelic IL; c Laboratory for Low-Level Radioactivities, Ruder Boskovic Institute , Bijenicka cesta, Zagreb , Croatia., Halkijevic I; d Department of Water Research , Faculty of Civil Engineering, Fra Andrije Kačića-Miošića , Zagreb , Croatia., Kuspilic M; d Department of Water Research , Faculty of Civil Engineering, Fra Andrije Kačića-Miošića , Zagreb , Croatia. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering [J Environ Sci Health A Tox Hazard Subst Environ Eng] 2018 Aug 24; Vol. 53 (10), pp. 925-930. Date of Electronic Publication: 2018 Apr 30. |
| DOI: | 10.1080/10934529.2018.1462911 |
| Abstrakt: | The purpose of this work was to assess the risk to the environment arising from the electroplating sludge from both chemical and toxicological point of view. Both approaches were used for the assessment of the treatment efficiency which consisted of CaO based solidification followed by thermal treatment at 400°C. The elemental composition was determined in the bulk samples and the leachates of untreated sludge. The toxicity of the leachate was determined using two human colorectal adenocarcinoma cell lines (Caco-2 and SW 480) and Hordeum vulgare L. based plant bioassay. The same toxicity tests were employed to the leachate of the treated sludge. Untreated sludge showed extremely high cytotoxic effect to both human and plant bio-system in dose-dependent manner. The percentages higher than 0.5% and 0.05% of the leachate caused significant cytotoxic effect on Caco-2 and SW 480 cells, respectively. The percentages of the leachate higher than 0.05% also showed significant toxic effect to H. vulgare L. bio-system with complete arrest of seed germination following the treatment with 100% to 5% of the leachate. The leachate of the treated sludge showed no toxicity to any of the test systems confirming the efficiency and justification of the employed procedures for the detoxification of electroplating sludge. |
| Databáze: | MEDLINE |
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