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91.
平原河网地区非点源污染风险差异化分区防控研究 总被引:1,自引:0,他引:1
土地利用优化和空间防控策略对非点源污染风险控制及水环境质量的改善具有重要意义。本文以太湖流域典型平原河网地区-上海市青浦区为研究对象,将灰色线性规划模型与最小累积阻力模型相结合,以控制非点源污染风险和增加经济效益、生态效益为目标,进行土地利用结构优化与空间分区防控研究,在空间上划设了水资源保育区、水资源重点防护区、非点源污染一般阻控区、非点源污染中等阻控区及非点源污染重点阻控区,并针对不同分区提出具有针对性的防控措施。与2012年相比,预测2020年优化防控方案下,可减少总氮、总磷的输出10.96%和41.33%。由此表明,优化土地利用结构和构建空间差异化防控机制是有效调控非点源污染风险,实现区域可持续土地利用,促进经济发展和保证生态环境安全的有效途径。 相似文献
92.
Optimization of bio-drying of kitchen waste: inoculation,initial moisture content and bulking agents
Song Xiao Ma Jiao Gao Jiandong Liu Yanbo Hao Yongce Li Wei Hu Ruhai Li Aimin Zhang Lei 《Journal of Material Cycles and Waste Management》2017,19(1):496-504
Journal of Material Cycles and Waste Management - Bio-drying has been proved to be a promising method for treatment of MSW (municipal solid waste) and sewage sludge due to its high energy... 相似文献
93.
Guanglong Pang Donghui Wang Yunhong Zhang Chunyan Ma Zhengping Hao 《Frontiers of Environmental Science & Engineering》2016,10(3):447-457
MnO2 microspheres with various surface structures were prepared using the hydrothermal method, and Au/MnO2 catalysts were synthesized using the sol-gel method. We obtained three MnO2 microspheres and Au/MnO2 samples: coherent solid spheres covered with wire-like nanostructures, solid spheres with nanosheets, and hierarchical hollow microspheres with nanoplatelets and nanorods. We investigated the properties and catalytic activities of formaldehyde oxidation at room temperature. Crystalline structures of MnO2 are the main factor affecting the catalytic activities of these samples, and γ-MnO2 shows high catalytic performance. The excellent redox properties are responsible for the catalytic ability of γ-MnO2. The gold-supported interaction can change the redox properties of catalysts and accelerate surface oxygen species transition, which can account for the catalytic activity enhancement of Au/MnO2. We also studied intermediate species. The dioxymethylene (DOM) and formate species formed on the catalyst surface were considered intermediates, and were ultimately transformed into hydrocarbonate and carbonate and then decomposed into CO2. A proposed mechanism of formaldehyde oxidation over Au/MnO2 catalysts was also obtained. 相似文献
94.
通过Langmuir吸附常数、两个分配比和完全吸附平衡常数等求解吸附过程中自由能变化的联系和区别.计算吸附自由能只有用完全吸附平衡常数才比较合理,而且它也只是衡量吸附位覆盖度θ趋近于零时或均匀固体表面的吸附平衡状态.提出了这些常数算术平均值的计算方法.研究了分配比与吸附位覆盖度θ的指数关系. 相似文献
95.
Zhang Hangjun Chen Feifei Li Yan Shan Xiaodong Yin Lu Hao Xiaojing Zhong Yuchi 《Environmental science and pollution research international》2021,28(22):27565-27576
Environmental Science and Pollution Research - The massive use of silver nanoparticles (AgNPs) is potentially harmful to exposed humans. Although previous studies have found that AgNPs can induce... 相似文献
96.
Yuan Shaofeng Xia Hao Yang Lixia 《Environmental science and pollution research international》2021,28(30):40060-40074
Environmental Science and Pollution Research - Urbanization has led to the rapid and large-scale changes in land use and land cover and has affected the spatial distribution of land surface... 相似文献
97.
Xu Hao Yang Huahong Ge Qiyun Jiang Zhenyi Wu Yang Yu Yamei Han Deming Cheng Jinping 《Environmental science and pollution research international》2021,28(9):10718-10733
Environmental Science and Pollution Research - Coastal ecosystem is vulnerable to heavy metal contamination. The northern Hangzhou Bay is under intensifying impact of anthropogenic activities. To... 相似文献
98.
Hou Hao Liu Zixing Zhang Jia Zhou Jizhi Qian Guangren 《Environmental science and pollution research international》2021,28(1):133-155
Environmental Science and Pollution Research - With the development of industry, sustainable use of natural resources has become a worldwide hot topic. Heavy metal–containing sludge (HMS) is... 相似文献
99.
Luo Yinfei Xiao Yong Hao Qichen Zhang Yunhui Zhao Zhen Wang Shengbin Dong Gaofeng 《Environmental science and pollution research international》2021,28(35):48312-48329
Environmental Science and Pollution Research - Groundwater resource is significantly important for sustainable development of the world, especially for arid endorheic watersheds. A total of 28... 相似文献
100.
Nguyen Xuan Cuong Nguyen Thi Thanh Huyen Bui Xuan-Thanh Tran Xuan Vu Tran Thi Cuc Phuong Hoang Nhung Thi Tuyet La Duc Duong Chang Soon Woong Ngo Huu Hao Nguyen Dinh Duc 《Environmental science and pollution research international》2021,28(45):63589-63598
Environmental Science and Pollution Research - The failure of the centralized water supply system forced XY community to become more dependent on uncertain and unstable water sources. The results... 相似文献