水污染控制规划系统涉及的内容广泛复杂，数据众多，因此数据管理十分重要。应用地理信息系统（GIS）技术建立了水污染控制规划空间数据库和属性数据库，较好地实现了数据的高效、方便和动态管理。

对厌氧生物膜反应器的填料进行预挂膜处理，使其形成良好的丝状微生物结构，为厌氧微生物的附着和生长提供条件，试验结果表明预挂膜可以较大幅度地提高厌氧反应器的启动速率。并用生态学的观点对试验现象和结果进行了分析。

地理信息系统在城市科学研究领域中的应用越来越广泛，其适时、准确和直观的表达方式也受到越来越多的城市及其决策者的重视。本文对城市环境管理中建立地理信息系统的几个问题，包括应用目标、系统构成、系统设计方法等进行了分析，并提出了建议，同时列举了三个应用实例进行简要的说明。

介绍了采用兼氧-好氧工艺处理苯胺基乙腈废水的方法。运行结果表明，当进水COD为3g/L时，出水水质可以达到回用于生产的冷却水水质要求。该工艺具有运行控制简便、基建投资和运行费用省，在有机化工废水处理领域有一定的应用前景和指导意义。

通过试验和观察，研究了活性污泥中丝状菌与絮体结构的关系。常见的活性污泥絮体可分为六大类型，在不同的处理工艺和运行条件下，各类型污泥比例不同，丝状菌在污泥絮体的形成过程中所起的作用也不相同。而在活性污泥膨胀时，生物相结构中的丝状菌可分为结构性的和非结构性的两大类，它们起着不同的作用，运行中必须通过不同的方法和措施加以防治。

为实现污泥浓缩消化一体化，开发了新型内循环污泥浓缩消化（ICSTD）反应器，并进行了城市污水厂污泥处理试验。结果表明，在有机负荷为9.68 kgVS/m3•d、平均水力停留时间为3.1d、污泥固体停留时间为54.8d的条件下，污泥有机物分解率可达到79.1%，排泥含水率达到90%，且上清液清澈，污泥消化与浓缩过程起到了相互促进的作用。

Geographic information systems (GIS) are a widely used tool in urban planning and management. More and morecities and decision-makers require its attributes of promptness, precision and visualiz ation. But the application of GIS in urbanenvironmental management is still a new field and relevant researches are getting on tardily. As a subsystem of GIS, an urbanenvironmental management geographic information system (UEMGIS) should be a complex multi-discipline and multi-objectivetool to perform quantitative multi-dimension analysis and to transfer the results into an expression legible to an ordinary user. Itshould be a dynamic system of prompt functions based on upgradable databases, and be composed of many subsystemsrespectively specialized in items about water, air, waste and noise as well as relative standards and regulations. However,existing UEMGISs mostly rely on the basic GIS too much to design the actual requirements of applications and managements inthemselves, and the unavailability of sufficient fundamental data has retarded their improvement. In the design of a UEMGIS, thestandardization of data classification should be taken into consideration to make the data exchangeable and shareable among itssubsystems and within every subsystem, and the applicable error limits for input data should be defined in accordance with theuser's required precision of data out. Data acquisition can be easy and quick if remote sensing, global positioning system (GPS)and other technologies are combined with GIS. Rapidly progressing information technologies have been giving a bright prospectfor the melioration of UEMGIS that will have great potential and wide application in environmental conservation.