再生水回用于景观水体的初步探讨

从国内外再生水回用于景观水体的现状以及城市生活污水再生利用发展规模上的变化,阐述了生活污水回用于景观水体的必要性,介绍了再生水处理工艺,通过实验结果论述了生活污水回用于景观水体的可行性,并分析了它的环境效益和经济效益。     

再生水水质对冷却水系统结垢的影响研究

通过单因素实验和正交实验,考察了再生水回用过程中,水质对回用系统结垢的影响。结果表明,Ca2+、HCO3-、PO43-和温度是导致冷却水系统结垢的4个最重要因素,NH4+-N对冷却水系统结垢表现出一定的抑制作用。     

IC反应器的启动研究进展

针对IC反应器存在的启动时间较长的问题,对有关IC反应器的启动研究做一综述,为IC反应器的研究提供一定的参考和借鉴。     

Use of tandem circulation wells to measure hydraulic conductivity without groundwater extraction

Conventional methods to measure the hydraulic conductivity of an aquifer on a relatively large scale (10-100 m) require extraction of significant quantities of groundwater. This can be expensive, and otherwise problematic, when investigating a contaminated aquifer. In this study, innovative approaches that make use of tandem circulation wells to measure hydraulic conductivity are proposed. These approaches measure conductivity on a relatively large scale, but do not require extraction of groundwater. Two basic approaches for using circulation wells to measure hydraulic conductivity are presented; one approach is based upon the dipole-flow test method, while the other approach relies on a tracer test to measure the flow of water between two recirculating wells. The approaches are tested in a relatively homogeneous and isotropic artificial aquifer, where the conductivities measured by both approaches are compared to each other and to the previously measured hydraulic conductivity of the aquifer. It was shown that both approaches have the potential to accurately measure horizontal and vertical hydraulic conductivity for a relatively large subsurface volume without the need to pump groundwater to the surface. Future work is recommended to evaluate the ability of these tandem circulation wells to accurately measure hydraulic conductivity when anisotropy and heterogeneity are greater than in the artificial aquifer used for these studies.     

陕西省成品油供应链现状及优化建议

介绍了陕西省成品油生产、消费、流通等环节的现状,针对各环节潜在问题提出了优化建议:加强采炼销环节管理,实现采炼销动态平衡;加强配送中心建设,高效链接一次物流和二次物流环节;加强信息网络建设,高度集成各环节管理系统和油品信息资源;加强全链条环节的油气回收,建立污染排放清单。     

电改袋技术在CFB锅炉除尘系统改造中的应用

分析了CFB锅炉电除尘系统改造为袋式除尘器的技术方案。改造后,除尘器已经稳定运行半年多,各项技术指标均达到设计要求,环境效益与经济效益显著。