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| Pollutant generation coefficient of heavy metals from typical livestock and poultry farms in East China |
| Received:August 08, 2019 |
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| KeyWord:animal husbandry;animal solid manure;animal liquid manure;heavy metal;pollutant generation coefficient |
| Author Name | Affiliation | E-mail | | QIAN Xiao-yong | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | | | WANG Zhen-qi | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | | | SHEN Gen-xiang | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | shengx@saes.sh.cn | | ZHAO Qing-jie | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | | | XU Chang | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | | | FU Kan | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | | | TANG Zheng-ze | Shanghai Academy of Environmental Sciences, Shanghai 200233, China | |
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| Abstract: |
| The pollution risk posed by heavy metals from animal manure should not be ignored, following the encouragement of resource utilization of animal manure nation-widely. This study proposes the pollutant generation coefficients of heavy metals from typical livestock and poultry farms with conventional proportions of different breeding stages and representative methods of animal manure treatment by monitoring the production and heavy metal content of animal manure from typical swine, dairy, and layer farms in different seasons. The results indicated that the pollutant generation coefficients of As, Hg, Cr, Cd, Pb, Cu, Zn, and Mn of the swine farm were 1.28, 0.005, 23.8, 0.11, 2.74, 243, 416 mg·d-1, and 277 mg·d-1, respectively, for one pig. The pollutant generation coefficients of As, Hg, Cr, Cd, Pb, Cu, Zn, and Mn of the dairy farm were 40.6, 0.28, 51.6, 0.63, 10.62, 127, 786 mg·d-1, and 735 mg·d-1, respectively, for one dairy cow. The pollutant generation coefficients of As, Hg, Cr, Cd, Pb, Cu, Zn, and Mn of the layer farm were 0.046, 0.000 6, 1.11, 0.016, 0.18, 2.00, 16.1 mg·d-1, and 21.0 mg·d-1, respectively, for one layer. The pollutant generation coefficients of heavy metals were higher in autumn and winter, and lower in spring and summer for the swine and dairy farms, but were higher in winter and spring and lower in summer and autumn for the layer farm. These results provide basic data for controlling the risk of heavy metal pollution during land application of animal manure. |
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