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排序方式: 共有266条查询结果,搜索用时 15 毫秒
1.
Zheng Lei Li Dewen Song Shuzheng Wang Hongtu Sui Jinjun 《Environment, Development and Sustainability》2022,24(3):3110-3125
Environment, Development and Sustainability - In order to reveal the distribution and migration law of downwind and upwind coal cutting, total dust (TD) and respirable dust (RD) concentration... 相似文献
2.
Sui Pengzhe Wen Xianghua Huang Xia 《Frontiers of Environmental Science & Engineering in China》2007,1(3):362-367
In this study, ultrasound was used to control the membrane fouling online in an anaerobic membrane bioreactor (AMBR). Short-term
running experiments were carried out under different operating conditions to explore feasible ultrasonic parameters. The experimental
results indicated that when the crossflow velocity was more than 1.0 m/s, membrane fouling could be controlled effectively
only by hydrodynamic methods without ultrasound. When ultrasound was applied, an ultrasonic power range of 60–150 W was suitable
for the membrane fouling control in the experimental system. The experimental results showed that the membrane fouling was
controlled so well that membrane filtration resistance (ΣR) could stay at 5 × 1011 m−1 for more than a week with the crossflow velocity of 0.75 m/s, which equaled the effect of crossflow velocity of more than
1.0 m/s without ultrasound.
Translated from Techniques and Equipment for Environmental Pollution Control, 2006, 7(4): 25–29 [译自: 环境污染治理技术与设备] 相似文献
3.
反硝化聚磷一体化设备生产性实验研究 总被引:4,自引:0,他引:4
反硝化聚磷一体化设备主要特点是在利用含反硝化聚磷菌的活性污泥在缺氧状态过量聚磷,在完成磷去除的同时进行反硝化。通过实验得出缺氧释磷在前30min内大量释放,60min以后甚微;反硝化吸磷在最初10几分钟内速率极大;吸磷与反硝化紧密相关;聚磷菌在释、聚磷时利用一定量的有机物。 相似文献
4.
从城市的结构和功能出发,提出推广生态建筑,提倡生态工艺,搞好城乡生态和加强宏观调控的城市可持续发展策略,为人们科学认识现代城市的发展趋势提供新思路。 相似文献
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Hong Sui Zhengtao Hua Xingang Li Hong Li Guozhong Wu 《Environmental science and pollution research international》2014,21(9):5774-5784
Petroleum ether was used to extract petroleum hydrocarbons from soils collected from six oil fields with different history of exploratory and contamination. It was capable of fast removing 76–94 % of the total petroleum hydrocarbons including 25 alkanes (C11–C35) and 16 US EPA priority polycyclic aromatic hydrocarbons from soils at room temperature. The partial least squares analysis indicated that the solvent extraction efficiencies were positively correlated with soil organic matter, cation exchange capacity, moisture, pH, and sand content of soils, while negative effects were observed in the properties reflecting the molecular size (e.g., molecular weight and number of carbon atoms) and hydrophobicity (e.g., water solubility, octanol–water partition coefficient, soil organic carbon partition coefficient) of hydrocarbons. The high concentration of weathered crude oil at the order of 105 mg kg?1 in this study was demonstrated adverse for solvent extraction by providing an obvious nonaqueous phase liquid phase for hydrocarbon sinking and increasing the sequestration of soluble hydrocarbons in the insoluble oil fractions during weathering. A full picture of the mass distribution and transport mechanism of petroleum contaminants in soils will ultimately require a variety of studies to gain insights into the dynamic interactions between environmental indicator hydrocarbons and their host oil matrix. 相似文献
9.
Influence of natural zeolite and nitrification inhibitor on organics degradation and nitrogen transformation during sludge composting 总被引:1,自引:0,他引:1
10.
Yuan Zhengqiu Yang Huizhi Xu Pan Li Chengfeng Jian Jian Zeng Jianxian Zeng Lingwei Sui Yuguang Zhou Hu 《Environmental science and pollution research international》2021,28(6):6411-6421
Environmental Science and Pollution Research - In this work, various photocatalysts were synthesized with an impregnation-precipitation process to in situ decorate Ag-based nanoparticles (NPs,... 相似文献