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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhang, Leiyan Chao, Jianying Zhang, Yimin Wang, Longmian Gao, Yuexiang Yang, Fei Lian, Jianjun |
| Description | Author Affiliation: Wang L ( Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, 8 Jiang Wang Miao Street, Nanjing 210042, PR China. wlmian@sina.com) |
| Abstract | Sewage sludge (SS) was mixed with different proportions of fly ash (FA) and phosphoric rock (PR), as passivators, and earthworms, Eisenia fetida, were introduced to allow vermicomposting. The earthworm growth rates, reproduction rates, and metal (except Zn and Cd) concentrations were significantly higher in the vermireactors containing FA and PR than in the treatments without passivators. The total organic carbon (TOC) and total metal concentrations in the mixtures decreased, and the mixtures were brought to approximately pH 7 during vermicomposting. There were significant differences in the decreases in the metal bioavailability factors (BFs) between the passivator and control treatments, and adding 20% FA (for Cu and Zn) or 20% PR (for Pb, Cd, and As) to the vermicompost were the most effective treatments for mitigating metal toxicity. The BF appeared to be dependent on TOC in the all treatments, but was not closely dependent on pH in the different vermibeds. |
| ISSN | 09608524 |
| Volume Number | 136 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coal Ash Pharmacology Environmental Monitoring Geologic Sediments Chemistry Metals, Heavy Toxicity Oligochaeta Drug Effects Phosphorus Sewage Animals Biological Availability Biomass Carbon Metabolism Hydrogen-ion Concentration Growth & Development Organic Chemicals Reproduction Soil Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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