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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wu, Donglei Yang, Meiqing Zheng, Shuangshuang Ding, Aqiang Sun, Guodong |
| Description | Author Affiliation: Wu D ( Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China. Electronic address: wudl@zju.edu.cn.); Zheng S ( Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.); Ding A ( Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.); Sun G ( Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.); Yang M ( Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.) |
| Abstract | In this paper, short-term exposure experiments with different ZVI concentrations were conducted to research the effects of ZVI adding on the anaerobic system for treating swine wastewater. Increasing the ZVI dose had a stimulatory effect on COD removal and CH4 production possibly due to a higher corrosion-induced H2 and dissolved ferrous ions, which could stimulate the methanogenesis and thus the biodegradation. In addition, the abiotic corrosion reactions such as flocculation, adsorption and precipitation were inevitable to removal some suspended COD. However, high ZVI doses had a potential risk on microorganism due to the present of large numbers of solid iron species in sludge, which likely encapsulated the cells and even damaged the cellular structure. Taken as a whole, the most enhancing effect induced by ZVI was observed at the rZVI/VSS of 2.63, and the maximum efficiency of per ZVI adding occurred at the rZVI/VSS of 0.74. But the ZVI concentration of 50 g/L (the rZVI/VSS was 5.26) was proved too high to facilitate microorganism activity, considering the higher LDH leakage and lower intracellular ATP level than the only sludge system. |
| ISSN | 03043894 |
| Volume Number | 286 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-04-09 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Iron Chemistry Waste Water Water Purification Methods Adenosine Triphosphate Adsorption Anaerobiosis Animals Biodegradation, Environmental Biological Oxygen Demand Analysis Green Chemistry Technology Hydrogen Ions Methane Microscopy, Electron, Transmission Reducing Agents Sewage Swine Waste Disposal, Fluid Water Pollutants Journal Article Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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