石油污染土壤生物通风修复及其强化技术

处理石油污染土壤的诸多方法中 ,生物通风法是一种很有效的治理方法。本文通过对生物通风法的技术、经济分析 ,得出该方法的可行性。另外 ,还介绍了生物通风的强化技术。     

Water technology for specific water usage

BACKGROUND: Water is the basis for life and culture. In addition to the availability of water its quality has become a major issue in industrialized areas and in developing countries as well. Water usage has to be seen as part of the hydrological cycle. As a consequence water management has to be sustainable. The aim of the contribution is to give water usage oriented quality criteria and to focus on the technical means to achieve them. MAIN FEATURES: Water is used for many purposes, ranging from drinking and irrigation to a broad variety of technical processes. Most applications need specific hygienic, chemical and/or physical properties. RESULTS: To meet these demands separation and reaction principles are applied. The reuse of water and the application of water treatment with little or no waste and by-product formation is the way to go. Membrane separation and advanced oxidation including catalytic reactions are promising methods that apply natural processes in sustainable technical performance. Thus elimination of specific water constituents (e.g. salts and metals, microorganisms) and waste water cleaning (e.g. pollutants, nutrients and organic water) can be done efficiently. OUTLOOK: Learning from nature and helping nature with appropriate technology is a convincing strategy for sustainable water management.     

循环流化床烟气脱硫技术及其环境经济可行性探讨

简要介绍了循环流化床烟气脱硫技术的原理和国内外研发的现状,并与目前得到广泛应用和继续发展的其它3种烟气脱硫工艺进行比较,得出循环流化床烟气脱硫净化工艺具有投资相对较低、脱硫效率较高、运行可靠、操作维护方便等优点。再通过实例,从投资、技术、运行成本等方面论述其环境经济的可行性,得出循环流化床烟气脱硫技术符合江阴现阶段经济发展状况,能满足中、小型锅炉脱硫要求,是一种较为可行的大气污染控制技术。     

基于集成全相关技术的水环境治理装备设计

针对现有水环境治理装备设计开发技术存在的不足，提出了一种融合全相关技术与CAD、CAE、CAM、CAPP技术的集成一体化装备系统设计开发方案，并给出了这种集成全相关技术的初步实现方法，而且进行了射流曝气器的设计应用。这种方法有望实现水环境治理装备系统完整、可靠的设计，并缩短了设计开发周期。     

污水处理中的人工湿地强化技术研究

人工湿地作为一种新型污水生态处理工艺受到越来越广泛的重视，在生活污水、特种工业废水、采矿污水、农业和畜牧业污水以及水产养殖废水等处理中得到了广泛的应用。但是其本身的局限却限制了它在高浓度废水、某些工业废水处理等方面的应用，在寒冷地区的应用也受到限制。本研究分析了一些强化技术（如湿地内部要素强化、工艺强化和工程强化等）在提高人工湿地的净化效能以及扩大其应用范围的可能性。     

典型油制气废水处理工艺改造过程分析

典型油制气废水是一类毒性强、CODCr、NH3 N浓度高、难生物降解的有机废水。如何有效处理重油制气废水 ,一直是油制气行业的环保难题。在分析中 ,研究了常规厌氧 好氧活性污泥法工艺处理油制气废水的缺陷 ,介绍了采用人工选育微生物在缺氧 活性污泥法系统中处理油制气废水的新工艺。实践证明 ,新工艺可以取得较好的处理效果 ,废水排放达到国家二级排放标准。     

Assessment of the sustainability of technology by means of a thermodynamically based life cycle analysis

Life cycle analysis is one of the tools in the assessment of the sustainability of technological options. It takes into account all effects on the ecosystem and the population which may endanger the possibilities of current and future generations. However, the main bottleneck in current LCA methodologies is the balancing of different effects, being all quantified on different scales. In this work, a methodology is proposed, which allows one to quantify different effects of the production, consumption and disposal of goods, and services on a single scale. The basis of the methodology is the second law of thermodynamics. All production, consumption and disposal processes affecting the ecosystem and the population, are quantified in terms of loss of exergy. The exergy content of a material is the maximum amount of energy which can be transformed into work at given environmental conditions. Next to the elaboration of the methodology, the new approach is illustrated by examples of the production of synthetic organic polymers, inorganic building insulation materials and different waste gas treatment options.     

农药生产废水处理方法与资源化技术

综述了农药生产废水的常用处理方法和资源化技术 ,认为在处理废水的同时 ,应尽可能地回收和利用废水中有用物质 ;同时 ,要合理采用综合处理技术 ,以期达到最佳的处理效果     

催化超临界水氧化对氨基苯酚

采用CuO／γ-Al2O3和MnO2/γ-Al2O3为催化剂、H2O2为氧化剂，在一连续流固定床反应器中进行了超临界水氧化对氨基苯酚实验。实验结果表明，CuO和MnO2催化剂对于对氨基苯酚的氧化降解具有显著的促进作用。对氨基苯酚的去除率随反应温度和压力的升高、停留时间的延长而提高，在24～26MPa和400～450℃条件下，数秒钟内COD去除率可达到99％以上，催化剂CuO／γ-Al2O3的催化效果优于MnO2／γ-Al2O3。证明了催化超临界水氧化技术的高效性。