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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chen, Jian-Jun Zhang, Hui Lu, Peng-Zhen Lu, Xiao-Ming Fu, Jie |
| Description | Country affiliation: China Author Affiliation: Lu XM ( Institute for Eco-Environmental Sciences, Wenzhou Vocational College of Science and Technology, 325006, Wenzhou, China. 13736961468@163.com.); Lu PZ ( Faculty of Civil Engineering and Architecture, Zhejiang University of Technology, 310014, Hangzhou, China.); Chen JJ ( College of Hydraulic and Environment Engineering, China Three Gorges University, 443002, YiChang, China.); Zhang H ( Institute for Eco-Environmental Sciences, Wenzhou Vocational College of Science and Technology, 325006, Wenzhou, China.); Fu J ( School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA. jie.fu@ce.gatech.edu.) |
| Abstract | A sequential extraction approach was used to evaluate the effects of various combinations of passivators (sepiolite, phosphate rock, and coal fly ash) on the concentration and speciation of Cu in swine manure aerobic compost along with soil to which the compost had been applied. The results indicate that the various passivators altered the bound forms of Cu in pig manure and soil; the concentrations of exchangeable and Fe-Mn-bound Cu decreased, whereas the residual Cu concentration increased, indicating that Cu transformed to low-availability forms after the passivator treatments. The concentrations of the carbonate-bound and organic-bound Cu varied widely. Among all treatments, the treatment of the control + straw + sepiolite + coal fly ash (2.5 %) + phosphate rock (5.0 %) resulted in the most efficient passivation of Cu; the percentage of residual Cu reached 3.91-21.14 %, obviously surpassing the percentage for the control without passivation. The treatment of the control + straw + sepiolite + phosphate rock (2.5 %) resulted in the lowest residual Cu fraction (0.85 %) among passivator treatments. These results show that the addition of suitable combinations of passivators to the composting process reduced the availability of Cu and the risk of Cu pollution during the application of composted pig manure to soil. Passivation also decreased the Cu content of Apium graveolens. |
| ISSN | 09441344 |
| Issue Number | 19 |
| Volume Number | 22 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2015-10-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Copper Chemistry Phosphates Soil Pollutants Soil Aerobiosis Animals Apium Graveolens Growth & Development Coal Ash Magnesium Silicates Manure Swine Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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