二维地下水水量水质管理模型

通过数值方法建立了抽水井水质与注水井水质的非线性响应关系，采用非线性的多项式函数形式，应用Ｍａｒｑｕａｒｄｔ法拟合，在管理模型的求解中应用Ａｖｒｉｅｌ－Ｗｉｌｌｉａｍｓ法处理负系数问题。实例计算结果表明，几何规划法的应用是可行的，该方法可应用于多排注水，抽水井情况。     

城市水环境非点源污染总量控制研究与应用

在调查和分析仪征市非点源污染过程中，对建成区进行网格处理，根据土地利用状况和特点，通过采样分析，确定了各网格的非点源污染负荷量和空间变化特征。在非点源污染发生的时段民假设在时间上分配均匀的点源污染负荷进行比较，分析二对区域水环境的叠加影响。     

总量控制在环境管理中应用

实施大气污染总量控制是法律的要求和市场经济发展的需要，指出容量总量控制是环境质量管理的必然趋势，总量控制研究的核心内容是确定区域允许排放量和制订区域污染综合治理方案，论述了实施总量控制的技术方法和原则，讨论了实施总量控制在社会经济发展中的作用。     

炼油厂含油冷却水处理回用技术研究

开展了O3 氧化和强碱性阴离子交换组合工艺用于炼油厂含油冷却水回用处理的实验研究。结果表明 ,O3 氧化过程中的最佳pH值约为 10 .5 ,O3 氧化的除油效率为 86 .7% (紫外法测定 ) ,去除 1mg石油类约需消耗 5 .7mgO3 ,O3 氧化后产物以乙酸和丙酸等挥发性脂肪酸为主。离子交换处理后油的含量达到未检出的水平。研究结果表明 ,O3 氧化和离子交换组合处理技术能使炼油厂含油冷却水达到回用水水质标准。     

论环境监测站质量体系的建立与运行

论述了环境监测站质量体系建立过程中的软件、硬件等资源的配置和建立的步骤，以及质量体系在运行过程中所应做的工作，用以来持续改进监测的质量。     

A study on the landfill leachate and its impact on the groundwater quality of the greater area

Characterisation of the leachate originating from the Ano Liosia landfill (situated in Attica region, Greece) as well as assessment on the quality of the local aquifer were carried out. The experimental results showed that most of the parameters examined in the leachate samples such as colour, conductivity, TS, COD, NH₃–N, PO₄–P, SO₄ ^2–, Cl^–, K⁺, Fe and Pb were found in high levels. The organic load was quite high since the COD concentrations were in the range of 3250–6125mgL^–1. In addition, the low BOD/COD ratio (0.096–0.195), confirmed that the majority of this organic matter is not easily biodegradable. The groundwater near the landfill site was characterised as not potable and not suitable for irrigation water, since most of the physical and chemical parameters examined – such as colour, conductivity, DS, hardness, Cl^–, NH₃–N, COD, K⁺, Na⁺, Ca²⁺, Fe, Ni and Pb exceeded the permissible limits given by EE, EPA and the Greek Ministry of Agriculture. Furthermore, this study presents the application of the hydrologic evaluation of landfill performance (HELP) model for the determination of the yearly leakage from the base of the landfill after the final capping.     

多目标优化方法在城市污水厂汇水区污染源总量控制规划中的应用

在城市污水处理厂汇水区实行污染源总量控制,应该避免与城市污水处理厂重复治理.针对这个问题,提出难降解有机物控制的多目标准则指标,建立了多目标优化模型.     

77MnA盘条断裂原因分析

通过宏观观察,夹杂物评级和显微组织观察,分析了77MnA盘条拉拔过程中断裂的原因。实验结果表明:马氏体的出现和基体为索氏体、屈氏体和少量的贝氏体的混合组织是断裂的主要原因;基体组织为混合组织和马氏体的出现是由于轧件出精轧机组进斯太尔摩控制冷却线时冷却温度过低造成的;同一直径钢丝心部的马氏体含量相对边部的马氏体含量多表明存在C、Mn、Cr元素的偏析,并提出改进措施。     

特大型冷却塔及冷水机组房噪声治理

本文对特大型冷却塔及冷水机组房的噪声特性进行了测量分析。根据其噪声源特性，采取了加装进排气消音器、吸声、隔声、减振等综合治理方案。治理后的实测结果表明：该项噪声治理工程投资少，达到标准的要求。     

Effect of different design aspects of pipe for earth air tunnel heat exchanger system: A state of art

Earth air tunnel heat exchanger (EATHE) is a promising passive technique to provide thermal comfort condition in buildings. EATHE system uses undisturbed temperature of the ground for heating/cooling of air. Despite the several advantages, this technique has not become much popular owing to its high capital cost (mainly pipe cost and trench excavation cost) and large land area requirements. The primary objective of this study is to present a comprehensive review of different EATHE pipe layouts, pipe properties and positioning of the pipe with their advantages and limitations. It is observed that the ring pipe layout is the most cost-effective pipe-layout for small size EATHE system because it saves excavation cost by using a trench of the existing foundation of the building. However, Grid pipe-layout is an ideal layout for a large size EATHE system. Multi-layer pipe layouts should be used to reduce the land area requirement significantly. Moreover, EATHE system can be installed beneath the building (under building foot-print) to eliminate extra land area requirement for the installation of EATHE system. This review article shows that the Initial capital cost and land area requirement for the EATHE system can be substantially reduced by using appropriate pipe layout. It can be concluded that if EATHE system is installed with proper design strategies, it will be a clean and cost-effective method for building heating/cooling with significant power savings.