Fences undermine biodiversity targets
文献类型：期刊论文
| 作者 | Sun, Jian; Liang, Eryuan; Barrio, Isabel C.; Chen, Ji; Wang, Jinniu; Fu, Bojie
|
| 刊名 | SCIENCE
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 272页码:- |
| ISSN号 | 1383-5866 |
| 关键词 | Washing wastewater Discharge characteristics Constructed wetland Rural area |
| 英文摘要 | China's toilet modernization has enabled thousands of villages to separate their feces and urines from the greywater or washing wastewater. Human feces and urine are usually used as raw materials for fertilizers, but the lack of understanding of discharge characteristics of washing wastewater in China rural areas affects the development of treatment technology and the reuse of treated water. In this study, a village in the lower reaches of the Yangtze River was selected to investigate the discharge characteristics of washing wastewater, and four kinds of subsurface constructed wetlands were used for treatment and reuse. The results showed that the production of washing wastewater in rural aeras was 59-232 L/(cap .d), with an average of 121 L/(cap .d). The bathing wastewater contributed the highest proportion of 46.19%. COD was identified as the key pollutants with average concentration of 337 mg/L. Compared with domestic wastewater, the concentrations of TN and TP were much lower with the average of 11.1 mg/L and 0.6 mg/L respectively. After treated by the constructed wetland with ceramsite, volcanic rock and anthracite as composite substrate, the effluent water met the requirements of paddy field crop irrigation, and the removal rates of COD, TN and TP achieved 61.5%, 68.8% and 70.5% respectively. Wetland plants and modular design had significant positive effects on the removal of nitrogen and phosphorous, but little effect on COD removal. The fecal coliforms in the effluent were all lower than 4.0 lg (MPN/L) in the four constructed wetlands, indicating they were not the limiting factors for irrigation reuse. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46734]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resourcs, Beijing 100101, Peoples R China 2.Agr Univ Iceland, Fac Environm & Forest Sci, IS-112 Reykjavik, Iceland 3.Aarhus Univ, Dept Agroecol, DK-8830 Tjele, Denmark 4.Aarhus Univ, Ctr Circular Bioecon, DK-8830 Tjele, Denmark 5.Aarhus Univ, CLIMATE Interdisciplinary Ctr Climate Change, DK-4000 Roskilde, Denmark 6.[Wang, Jinniu 7.Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Peoples R China 8.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 9.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jian,Liang, Eryuan,Barrio, Isabel C.,et al. Fences undermine biodiversity targets[J]. SCIENCE,2021,272:-. |
| APA | Sun, Jian,Liang, Eryuan,Barrio, Isabel C.,Chen, Ji,Wang, Jinniu,&Fu, Bojie.(2021).Fences undermine biodiversity targets.SCIENCE,272,-. |
| MLA | Sun, Jian,et al."Fences undermine biodiversity targets".SCIENCE 272(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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