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文章评述了我N2008年污水治理技术的新进展,重点介绍了高难废水治理、炼油污水特色治理、石化废水治理、油田污水处理以及污水零排放和回用等技术。 相似文献
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介绍了"五水分流"清洁生产技术、铬液灰液循环利用技术、制革高氨氮废水稳定达标排放技术、MicrowaterTM环境治理微生物技术体系、四相废水深度达标治理专利技术、膜处理回用技术、含铬污泥资源化利用技术等制革行业污染治理集成技术的概况;通过分析应用实例,指出该技术体系在达标治理的前提下,通过清洁生产、高效处理、中水回用、铬泥资源化利用等手段,可有效降低污染治理成本,应用前景广阔。 相似文献
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《中国环保产业》2016,(4):4-8
为贯彻《中华人民共和国环境保护法》和《中华人民共和国水污染防治法》,落实《国务院关于加强环境保护重点工作的意见》(国发〔2011〕35号)和《水污染防治行动计划》(国发〔2015〕17号),加快环保先进污染防治技术示范、应用和推广,环境保护部组织有关单位筛选了一批先进水污染治理技术,编写形成了2015年《国家先进污染防治示范技术名录(水污染治理领域)》和《国家鼓励发展的环境保护技术目录(水污染治理领域)》并于2015年12月7日发布。《国家先进污染防治示范技术名录(水污染治理领域)》所列技术具有创新性,技术指标先进、治理效果好,基本达到实际工程应用水平,具有工程示范价值。内容见本刊上期。《国家鼓励发展的环境保护技术目录(水污染治理领域)》所列技术是经工程实践证明了的成熟技术,治理效果稳定、经济合理可行,鼓励推广应用。内容如下。 相似文献
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钢铁行业烧结烟气脱硫脱硝联合治理技术 总被引:1,自引:0,他引:1
分析了烧结烟气的特点,介绍了当前几种主要的烧结球团烟气脱硫脱硝联合治理技术,从技术原理、特点、适用条件及工程应用等方面进行了叙述,提出了钢铁行业烧结烟气污染物治理技术的发展方向。 相似文献
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重金属污染土壤的修复方法及其在几类典型土壤修复中的应用 总被引:3,自引:0,他引:3
文中首先阐述了重金属污染土壤的途径与特点。介绍了当前几类主要的重金属污染土壤修复方法:物理化学方法、植物修复法、微生物修复法、动物修复法等的技术要点,详述了各自的技术特点及机理,并对它们的修复效能、环境友好性等进行了比较。从土壤的特性出发,区分出了3种典型的遭受重金属污染的土壤:农业土壤、城市土壤、矿区土壤,并从国内外最新的重金属污染修复实践中选取了适合各自土壤类型的修复方法进行了重金属污染土壤的治理探讨。最后,对土壤重金属污染修复技术的发展进行了展望。 相似文献
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The implementation of groundwater remediation strategies in contaminated areas includes not only a cost-benefit analysis and an environmental risk assessment but also another type of study called compatibility analysis. A compatibility analysis targets the interactions between remediation technologies and site characteristics, such as the types of active contaminants and their concentrations, soil composition and geological features, etc. The purpose of this analysis is to identify the most compatible remediation plan for the contaminated site. In this paper, we introduce a decision support system for the prioritization of remediation plans based on their estimated compatibility index. As this model receives data in terms of linguistic judgments and experts' opinions, we use fuzzy sets theory to deal with these uncertainties. First, we break down the concept of compatibility into the measurable factors. Then by using a multiple-attribute decision-making (MADM) outline, we compute a factorial, regional and overall compatibility indicator for each plan. Finally, by comparing these generated indicators, we rank the remediation policies. 相似文献
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Remediation of saturated soil contaminated with petroleum products using air sparging with thermal enhancement 总被引:3,自引:0,他引:3
Pollutants in the form of non-aqueous phase liquids (NAPLs), such as petroleum products, pose a serious threat to the soil and groundwater. A mathematical model was derived to study the unsteady pollutant concentrations through water saturated contaminated soil under air sparging conditions for different NAPLs and soil properties. The comparison between the numerical model results and the published experimental results showed acceptable agreement. Furthermore, an experimental study was conducted to remove NAPLs from the contaminated soil using the sparging air technique, considering the sparging air velocity, air temperature, soil grain size and different contaminant properties. This study showed that sparging air at ambient temperature through the contaminated soil can remove NAPLs, however, employing hot air sparging can provide higher contaminant removal efficiency, by about 9%. An empirical correlation for the volatilization mass transfer coefficient was developed from the experimental results. The dimensionless numbers used were Sherwood number (Sh), Peclet number (Pe), Schmidt number (Sc) and several physical-chemical properties of VOCs and porous media. Finally, the estimated volatilization mass transfer coefficient was used for calculation of the influence of heated sparging air on the spreading of the NAPL plume through the contaminated soil. 相似文献
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Charlotte Dierolf 《Journal of the American Water Resources Association》1997,33(6):1387-1391
ABSTRACT: Dense nonaqueous phase liquid (DNAPL) contaminated ground water has proven to be exceptionally difficult to remediate for both physical and chemical reasons. Since DNAPL's are denser than water, their movement is not governed by the direction of ground water flow as is generally the case for other ground water contaminants. Additionally, DNAPLs' interactions with aquifer solids through processes such as sorption tend to make the pollution linger or sometimes apparently disappear, only to return later. Unfortunately, pump-and-treat systems, the traditional way ground water contamination is addressed, have not been effective in cleaning DNAPL contaminated water. Other remediation technologies continue to be developed to address these problems. Policy changes will also be necessary to effectively address the difficulties associated with ground water remediation. 相似文献
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Without any incentive to clean up a contaminated site, remediation is often delayed until the site owner is compelled to act by regulatory agencies. In such a context, the selected technology is typically the one that will reach the remediation goals as quickly as possible. Unfortunately, this criterion is often met by overly expensive technologies, resulting in high and sometimes unaffordable total remediation costs, leading to a remediation with a negative net benefit. This study examines the effects of time constraint and benefit value on the optimal remediation strategy for a diesel-contaminated site. This strategy is developed using the technico-economic model METEORS, which takes into account the technology’s effectiveness, the uncertainty of the level of contamination, and the possibility of reducing this uncertainty through either an additional characterization (before selecting and applying a technology) or the monitoring of the remediation technology (during its use). Results of simulations with both economic and temporal constraints support a proactive approach to site remediation. 相似文献
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污染场地修复技术的种类 总被引:3,自引:1,他引:3
本文旨在归纳总结目前国内外对污染场地的修复的各种技术。认为场地修复通常包括污染土修复和含水层净化等2个方面。污染土常见的处理技术目前大致可归纳为6类,即微生物修复技术、化学处理技术、物理分离技术、固化/安定化技术、高温处理技术、植物修复技术等。而污染地下水的修复方法主要有5项:注气法、原位微生物修复技术、两相蒸气提取法、原位氧化法、原位反应墙技术等。 相似文献