Chemistry of fly ash and cyclone ash leachate from waste materials and effects of ash leachates on bacterial growth, nitrogen-transformation activity, and metal accumulation
| Autor: | Yoshiro Ono, Hidekazu Ohta, Hitoshi Sakakibara, Hodaka Kawahata, Mio Takeuchi, Misao Itouga, Lallan P. Gupta, Takeshi Komai |
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| Rok vydání: | 2008 |
| Předmět: |
inorganic chemicals
Conservation of Natural Resources Environmental Engineering Municipal solid waste Nitrogen Health Toxicology and Mutagenesis Amendment Incineration complex mixtures Coal Ash Hazardous Substances Environmental Chemistry Leachate Waste Management and Disposal Soil Microbiology Waste Products Waste management Bacteria Chemistry fungi technology industry and agriculture Soil classification respiratory system Pollution Soil contamination Carbon Refuse Disposal Soil conditioner Lead Metals Fly ash Environmental chemistry Particulate Matter Bacillus subtilis |
| Zdroj: | Journal of hazardous materials. 165(1-3) |
| ISSN: | 1873-3336 |
| Popis: | The effects of waste ash leachates on soil microorganism were evaluated along with a chemical characterization of ash leachates. Thirty fly ash samples and cyclone ash samples obtained from the incineration of municipal solid waste, plastic waste, and construction waste were used. Twenty-one and 22 samples inhibited N transformation activity of soil microorganism and growth of Bacillus subtilis, respectively. On the other hand, 11 and 18 samples stimulated bacterial activity and growth, respectively, at low concentrations. Generally, cyclone ash contained a smaller amount of toxic metals than fly ash. Our results suggest that cyclone ash can be further studied for reuse, perhaps as a soil amendment. Pb was found to be highly accumulated in B. subtilis cells, and should be carefully monitored when waste ash is reused in the environment. |
| Databáze: | OpenAIRE |
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