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971.
本文运用旅游体验学基本范畴理论揭示了旅游节庆与旅游体验学基本范畴的特征关系,在此基础上构建了旅游节庆可持续发展的基本模型,从重构惯常生活世界、营造旅游世界和旅游活动设计注重社区居民与旅游者互动三个方面提出了旅游节庆发展的新思路与方法。 相似文献
972.
973.
采用阳极氧化法制备Ru—TiO2光电极,以该电极为工作电极,石墨作对电极,饱和甘汞电极为参比电极,对亚甲基蓝溶液的光电催化降解进行了研究。结果表明:煅烧温度600oC,掺杂1%Ru的Ru-TiO2光电极催化活性最好;以紫外灯(125W)为光源,当外加偏压0.2V,pH为5时,Ru-TiO2光电催化亚甲基蓝120min可使其完全脱色;亚甲基蓝的光电催化降解遵从Langmuir—Hinshelwood动力学模型,测得其反应速率常数k:0.781mmol/(L·min),吸附常数K=0.225L/mmol。 相似文献
974.
采用阳极氧化法制备Ru-TiO2光电极,以该电极为工作电极,石墨作对电极,饱和甘汞电极为参比电极,对亚甲基蓝溶液的光电催化降解进行了研究。结果表明:煅烧温度600℃,掺杂1%Ru的Ru-TiO2光电极催化活性最好;以紫外灯(125 W)为光源,当外加偏压0.2 V,pH为5时,Ru-TiO2光电催化亚甲基蓝120 min可使其完全脱色;亚甲基蓝的光电催化降解遵从Langmuir-Hinshelwood动力学模型,测得其反应速率常数k=0.781 mmol/(L.min),吸附常数K=0.225 L/mmol。 相似文献
975.
Gordon McGee Andrea Cullen Thomas Gunton 《Environment, Development and Sustainability》2010,12(5):745-762
This paper describes a new model of sustainable development planning based on a case study of a successful planning process for the Great Bear Rainforest on Canada’s west coast. The planning region is an area of international ecological significance that contains one-quarter of the world’s remaining ancient coastal temperate rainforest. An innovative collaborative planning process was initiated in 1996 to develop a plan for the region that balances social, economic, and environmental values. The plan, which was accepted by consensus agreement of all stakeholders in 2006, uses a new model for sustainable regional development that is based on collaborative planning, collaborative implementation, informal conflict resolution, contextual adaptation incorporating comanagement with indigenous peoples (First Nations), joint fact finding, ecosystem-based management, and integration of social, economic, and environmental objectives. 相似文献
976.
分别以活性炭和陶粒作为载体,在无回流条件下研究了不同上升流速时,反应器的离散数D/μL和串联数N的变化规律.试验结果表明,上升流速,固体混合特性以及载体性质均对反应器离散程度产生影响.只要反应器达到一定的膨胀率,反应器的流态就比较接近完全混合型.活性炭为载体时,上升流速为0.29cm/s,膨胀率为9.5%,串联数N为2.17.说明用完全混合型反应器模拟生物流化床反应器是可行的. 相似文献
977.
围绕天津市环境保护局创建机关ISO14001环境管理体系过程中的环境因素识别这一核心问题,进行了深入研究和探讨,并对体系的概况,特点和创建体系的意义等进行了概述和分析,为全国环保机关建立ISO14001环境管理体系提供了借鉴。 相似文献
978.
Pei ZG Shan XQ Liu T Xie YN Wen B Zhang S Khan SU 《Environmental pollution (Barking, Essex : 1987)》2007,147(3):764-770
The effect of lead on the sorption of 2,4,6-trichlorophenol (2,4,6-TCP) on soil and peat was investigated using a batch equilibration method. Lead markedly diminished the sorption of 2,4,6-TCP, and 2,4,6-TCP had little effect on lead sorption. Peat was a more effective adsorbent for 2,4,6-TCP than soil. The desorption hysteresis of 2,4,6-TCP verified the presence of high-energy sorption sites. Mechanisms of lead suppression effect on the 2,4,6-TCP sorption included the following: Firstly, lead accelerated the aggregation of colloids, the aggregates covered the surface in part and shrunk the pore sizes of the adsorbents, hence decreased the sorption of 2,4,6-TCP. Secondly, X-ray absorption and Fourier transform infrared spectroscopy study suggested that lead competed with 2,4,6-TCP for carboxylic, phenolic and Si-OH groups of organic matter and clay minerals. Such competition was partly responsible for the overall suppression effect of lead on the sorption of 2,4,6-TCP. 相似文献
979.
Samples of water, sediment and suspended particulates were collected from 13 sites in the middle and lower reaches of the
Yellow River in China. Phthalic acid esters (PAEs) concentrations in different phases of each sample were determined by Gas
Chromatogram GC-FID. The results are shown as follows: (1) In the Xiao Langdi–Dongming Bridge section, PAEs concentrations
in water phase from the main river ranged from 3.99 × 10−3 to 45.45 × 10−3 mg/L, which were similar to those from other rivers in the world. The PAEs levels in the tributaries of the Yellow River
were much higher than those of the main river. (2) In the studied branches, the concentration of PAEs in sediment for Luoyang
Petrochemical Channel (331.70 mg/Kg) was the highest. The concentrations of PAEs in sediment phase of the main river were
30.52 to 85.16 mg/Kg, which were much higher than those from other rivers in the world. In the main river, the concentration
level of PAEs on suspended solid phases reached 94.22 mg/Kg, and it reached 691.23 mg/Kg in the Yiluo River – one tributary
of the Yellow River. (3) Whether in the sediment or on the suspended solid phases, there was no significant correlation between
the contents of PAEs and TOC or particle size of the solid phase; and the calculated Koc of Di (2-Ethylhexyl) Phthalate (DEHP)
in the river were much less than the theoretical value, which inferred that PAEs were not on the equilibrium between water
and suspended solid phases/sediment. (4) Among the measured PAEs compounds, the proportions of DEHP and di-n-butyl phthalate
(DBP) were much higher than the others. The concentrations of DEHP exceeded the Quality Standard in all the main river and
tributary stations except those in the Mengjin and Jiaogong Bridge of the main river. This indicates that more attention should
be paid to pollution control and further assessment in understanding risks associated with human health. 相似文献
980.
Yuzhuang Sun Pei Ling Yanheng Li Qingxue Li Quande Sun Jinxi Wang 《Environmental geochemistry and health》2014,36(1):99-106
In 2008, a maize underproduction disaster occurred in the Xianyu village after irrigation using the coal mining water from the Xingdong Mine, China. This disaster resulted in about 40 hectare maize underproduction and 20 hectare total loss of the maize yields. In order to study the reason, a total of 25 soil, water and plant samples were taken from the study area. These samples were analysed by inductively coupled plasma mass spectrometry and ion chromatography. The results indicate that the contents of both water-soluble fluorine and total fluorine are very high and resulting of maize underproduction and total loss of production. The possible pollution sources of fluorine in the study area could be from the coal mine water used for irrigation and glass chemical factory near the study area. 相似文献