3种载体固定化菌藻共生系统脱氮除磷效果的对比

采用3种不同载体（海藻酸钠、聚乙烯醇、复合载体）,分别将小球藻和栅藻与活性污泥固定成菌藻共生系统,制成菌藻凝胶小球,单独菌、单独藻的凝胶小球,用于处理人工污水。结果表明,（1）复合载体固定的菌藻共生系统氮磷去除效果最好,PVA载体的脱氮除磷效果次于复合载体优于海藻酸钠;（2）固定化菌藻共生系统的脱氮除磷效果明显优于单独固定菌和单独固定藻,固定菌的效果较差;（3）3种载体包埋下的固定化小球藻的脱氮除磷效果均较相同载体固定化的栅藻效果好。     

乌鲁木齐市环境应急监测体系存在的问题及对策

乌鲁木齐市已发生多起突发性环境污染事故,虽然环境监测部门在为政府和上级主管部门提供公正、科学和规范的技术支持方面发挥了不可替代的作用,但受经验、资金和技术等方面的制约,当前应急监测体系还存在着监测预案不完善、设备配置偏低、信息化程度和技术含量不高等突出问题。为着力解决这些问题,应完善具体的环境风险源污染事故应急监测预案,建立基于GIS平台的环境应急信息系统,增加现场及实验室仪器配置,并通过完善培训考核程序和系统化演练程序来加强应急监测队伍建设。     

水质自动监测在苏州市饮用水源地的应用与思考

以苏州市集中式饮用水源地自动监测系统为例,对该水质自动监测系统的特点、主要功能及在环境管理、蓝藻实时监控等方面的应用作了介绍,并就系统验收、运行管理及系统拓展方面提出了一些对策建议。     

Hydrogeochemical Indicators of Groundwater Flow Systems in the Yangwu River Alluvial Fan,Xinzhou Basin,Shanxi, China

Based on analysis of groundwater hydrochemical and isotopic indicators, this article aims to identify the groundwater flow systems in the Yangwu River alluvial fan, in the Xinzhou Basin, China. Groundwater δ²H and δ¹⁸O values indicate that the origin of groundwater is mainly from precipitation, with local evaporative influence. d-excess values lower than 10% in most groundwaters suggest a cold climate during recharge in the area. Major ion chemistry, including rCa/rMg and rNa/rCl ratios, show that groundwater salinization is probably dominated by water–rock interaction (e.g., silicate mineral weathering, dissolution of calcite and dolomite and cation exchange) in the Yangwu River alluvial fan, and locally by intensive evapotranspiration in the Hutuo River valley. Cl and Sr concentrations follow an increasing trend in shallow groundwater affected by evaporation, and a decreasing trend in deep groundwater. ⁸⁷Sr/⁸⁶Sr ratios reflect the variety of lithologies encountered during throughflow. The groundwater flow systems (GFS) of the Yangwu River alluvial fan include local and intermediate flow systems. Hydrogeochemical modeling results, simulated using PHREEQC, reveal water–rock interaction processes along different flow paths. This modeling method is more effective for characterizing flow paths in the intermediate system than in the local system. Artificial exploitation on groundwater in the alluvial fan enhances mixing between different groundwater flow systems.     

论基于EGIS平台的放射源管理系统的开发

放射源管理系统是一种基于环境地理信息系统平台的资源管理系统,是GIS技术与环境监测技术、环境管理技术、数据库技术等各种环境信息分析和处理技术的集成。系统为环保部门提供了一个功能强大的空间信息服务和管理工具,可以直观、方便地获取放射源的监控、管理等数据信息,为环境管理部门的决策提供依据。     

高危作业有害因素预防控制水平预警模型

针对职业卫生领域出现的急慢性职业病及突发性化学中毒等事件，本文采用预防控制水平指标体系，用因子分析法构建了单项有害因素的预警模型。在此基础上，利用加权平均法给出了多项有害因素的综合预警模型，其中，应用层次分析法确定各个有害因素的权重。高危作业有害因素预警模型的提出为高危作业有害因素防治提供了量化的科学依据。     

区域安全发展与人才支撑复合系统协调性实证

通过对区域安全发展和人才支撑方面的研究综述,从系统理论出发构建了区域安全发展与人才支撑复合系统,并对复合系统理论作出假设和理论分析,进一步研究了复合系统的协调性。在此基础上,对山西安全发展与人才支撑复合系统的协调性进行了实证研究,从人才支撑角度提出了实现山西安全发展的对策与措施。     

危险评价第三维矢量的定性分析

危险评价主要针对危险导致事故发生的可能性与后果严重性进行分析,目的是为拧制危险提供决策依据,但现有的评价矢量并不能完全实现这一目的.可控性的提出完善了评价内容,并在控制对象、控制方案、控制时机等多方面为决策者提供参考,提高了危险评价结果的实用性.     

新疆生态环境保护法律问题研究

通过对新疆地区生态环境及其法制建设现状进行分析,发现新疆地区的法制现状不容乐观,环境立法与执法不能完全适应经济社会可持续发展的要求。鉴于此,结合区情对所存在的问题提出生态环境保护的法制构想,以期推动区域经济、社会和环境的协调发展。     

System Dynamics to Sustainable Water Resources Management in the Eastern Snake Plain Aquifer Under Water Supply Uncertainty1

Abstract: Water supply uncertainty continues to threaten the reliability of regional water resources in the western United States. Climate variability and water dispute potentials induce water managers to develop proactive adaptive management strategies to mitigate future hydroclimate impacts. The Eastern Snake Plain Aquifer in the state of Idaho is also facing these challenges in the sense that population growth and economic development strongly depend on reliable water resources from underground storage. Drought and subsequent water conflict often drive scientific research and political agendas because water resources availability and aquifer management for a sustainable rural economy are of great interest. In this study, a system dynamics approach is applied to address dynamically complex problems with management of the aquifer and associated surface‐water and groundwater interactions. Recharge and discharge dynamics within the aquifer system are coded in an environmental modeling framework to identify long‐term behavior of aquifer responses to uncertain future hydrological variability. The research shows that the system dynamics approach is a promising modeling tool to develop sustainable water resources planning and management in a collaborative decision‐making framework and also to provide useful insights and alternative opportunities for operational management, policy support, and participatory strategic planning to mitigate future hydroclimate impacts in human dimensions.