A novel water control technology that com- bines the features of a reticular blind drainage system and a vertical hierarchical drainage system is developed and applied in the Yanziyan Sanitary Landfill, which is locat...A novel water control technology that com- bines the features of a reticular blind drainage system and a vertical hierarchical drainage system is developed and applied in the Yanziyan Sanitary Landfill, which is located at an area （Loudi City, Hunan Province, China） with high rainfall and high groundwater level. The reticular blind drain system, which was installed on the bottom and side walls of the landfill site, can conveniently guide the flow of groundwater out of the site while preventing a disorga- nized flow of groundwater. The vertical hierarchical drainage system was installed to separate rainfall water and leachate in the landfill site, thus efficiently reducing the pressure of leachate treatment. The whole drainage system plays a key role in foundation stabilization by seepage control and separation and in the instant drainage of rainfall water. The leachate reduction efficiency of the drainage technology was calculated in terms of leachate production before （336519 m3） and after （29664 m3） technology application. Over 90% of leachate derived from rainfall water and groundwater inflow was avoided upon installation of the vertical hierarchical drainage and reticular blind drainage systems. The technology can thus be popularized and applied for water control in landfills located in areas with high rainfall and high groundwater level. The proposed technology can be used to alleviate the pressure of leachate treatment and to reduce the risk of instability.展开更多
基金This research project was funded by the National High Technology Research and Development Program of China （Grant No. 2007AA06Z350）, the National Natural Science Foundation of China （Grant No. 41101225）, and the Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China （No. SWMES 2011-11）. The authors would like to express sincere thanks to Mr. Luis Miguel for help in language correction.
文摘A novel water control technology that com- bines the features of a reticular blind drainage system and a vertical hierarchical drainage system is developed and applied in the Yanziyan Sanitary Landfill, which is located at an area （Loudi City, Hunan Province, China） with high rainfall and high groundwater level. The reticular blind drain system, which was installed on the bottom and side walls of the landfill site, can conveniently guide the flow of groundwater out of the site while preventing a disorga- nized flow of groundwater. The vertical hierarchical drainage system was installed to separate rainfall water and leachate in the landfill site, thus efficiently reducing the pressure of leachate treatment. The whole drainage system plays a key role in foundation stabilization by seepage control and separation and in the instant drainage of rainfall water. The leachate reduction efficiency of the drainage technology was calculated in terms of leachate production before （336519 m3） and after （29664 m3） technology application. Over 90% of leachate derived from rainfall water and groundwater inflow was avoided upon installation of the vertical hierarchical drainage and reticular blind drainage systems. The technology can thus be popularized and applied for water control in landfills located in areas with high rainfall and high groundwater level. The proposed technology can be used to alleviate the pressure of leachate treatment and to reduce the risk of instability.
文摘基于SERVQUAL模型和模糊层次分析法(fuzzy analytic hierarchy process,FAHP)获取顾客对商圈服务最迫切的需求,同时对商圈服务质量进行综合评价,发现商圈服务存在的问题,建立了商圈服务质量的模糊综合评价(fuzzy comprehensive evaluation of service quality,FCESQ)模型.研究结果表明,影响商圈整体服务质量的瓶颈问题是服务人员的素质、商家的诚信以及顾客投诉的处理效果等.针对这些问题分析了原因并找出了提升商圈服务质量的措施,最终达到提升商圈整体竞争力的目的.
