共查询到19条相似文献,搜索用时 484 毫秒
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《涂料工业》2017,(12)
基于溶剂型涂料与水性涂料涂装体系VOC排放水平及VOC排放成分谱的比较分析,提出了我国工业涂装VOC治理技术路线,即重在源头,全面推进粉末、水性、高固体分、紫外光固化等低VOC含量涂料;兼顾末端治理,着力提升VOC收集效率,从经济成本、减排效益、二次环境影响等方面开展喷漆废气、烘干废气治理技术的评估和筛选;针对不同工业涂装行业确定差异化的最佳可行控制技术。加强工业涂装VOC排放监管,制定覆盖"源头—过程—末端"的工业涂装排放标准体系,从执法监测、自行监测、台账管理等多个方面实施工业涂装VOC排放监控,以排污许可证为载体落实排放标准、总量控制、可行技术、自行监测、台账管理、执行报告、信息公开等要求,实现工业涂装企业全过程精细化管理。 相似文献
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VOC排放问题引起政府的关注,以VOC为代表的特征和毒性污染物已经成为我国大气污染防治的重点。分析了涂料涂装行业VOC减排面临的形势,对比了世界各地区的环保(大气净化)法规,总结了降低VOC的技术措施,提出了削减涂料涂装行业VOC排放量的建议。 相似文献
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集装箱涂装线VOC治理研究 总被引:1,自引:0,他引:1
综述了集装箱生产污染物排放概况,归纳了集装箱涂装线现行VOC治理技术及水性涂料的技术难点,分析了集装箱水性涂料与溶剂型涂料的施工工艺差别。指出集装箱水性涂料的VOC含量相比溶剂型下降了80%,使用水性涂料已成为集装箱制造业的必然趋势。 相似文献
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1前言 随着人们环保意识的不断提高和环保法规对挥发性有机物质(VOC/TVOC)及有害空气污染物(HAPs)的限制等因素日趋严格,水性涂料将成为21世纪世界涂料市场的主角;近年来防腐涂料工业在不断提高其性能的同时,正迅速向"水性化"方向发展.其中水性双组分聚氨酯涂料正成为水性防腐涂料中的佼佼者,不但有优异的物理性能,而且具有优异的耐老化、耐强酸、耐强碱、耐盐雾(>480h)、耐盐水(>480h)、耐油等化学性能. 相似文献
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负离子分解室内有机化合物的测试 总被引:3,自引:0,他引:3
低浓度、高毒性的挥发性有机化合物(VOC)污染大气,造成“病态建筑综合症(SBS)”,严重威胁着人们的身体健康。空气中的负离子除有利于人体生理健康以外,还能有效分解空气中的VOC。将一种负离子添加剂添加到墙体涂料中,可以得到一种能有效释放负离子的涂料。本文测试了涂刷负离子添加剂涂料的测试小室中负离子分解总挥发性有机化合物(TVOC)及甲醛的性能,结果证明:涂料释放的负离子能有效分解VOC,使室内VOC的浓度在较短时间内满足GB/T—18883—2002的要求。 相似文献
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在雾霾频发的现在,探讨如何通过发展低挥发性有机化合物(VOC)涂料产品和改进喷涂工艺,来降低涂料涂装中VOC排放对于大气污染的影响。结合大气污染防治法等法规对VOC的控制要求,探讨涂料行业的发展。 相似文献
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《Gas Separation & Purification》1996,10(2):123-130
There is an emergent need to reduce the emissions of toxic volatile organic compounds (VOCs) to the atmosphere. One strategy to reduce the emissions of VOCs from point sources is to use air pollution control devices on the sources' discharge streams. This paper describes the development of a new activated carbon cloth (ACC) adsorption system that is integrated with cryogenic vapor recovery to reduce the amount of VOCs emitted to the atmosphere from point sources and provide for reuse of the VOCs that are recovered. Electrical current is used to regenerate the ACC. ACC adsorption followed by electrothermal regeneration results in formation of a concentrated organic vapor which is cryogenically condensed from the gas phase. Electrothermal desorption allows for careful control of the desorption time and the concentration profile of the desorbed VOC to allow minimal use of cryogen. Adsorption, followed by cryogenic treatment enables VOC sources to meet air quality control regulations while providing a high quality liquid VOC product for reuse. 相似文献
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钢铁行业是我国国民经济的重要基础产业,但同时也是我国污-碳排放量最大的工业行业。2019年4月,五部委联合印发了《关于推进实施钢铁行业超低排放的意见》,率先引领了工业烟气超低排放,我国钢铁行业大气污染排放量实现了大幅削减。“十四五”以来,在“双碳”背景下,随着减污降碳的提出,现有超低排放技术所带来的碳增量效应问题逐渐凸显,又对钢铁行业带来了新的技术需求。本工作阐述了我国钢铁行业超低排放的技术进展,归纳了钢铁行业减污降碳发展方向,并提出了未来钢铁行业绿色低碳发展建议,为推动中国钢铁行业的高质量绿色发展提供参考。 相似文献
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Mohammed S. Ba‐Shammakh 《加拿大化工杂志》2011,89(6):1508-1515
Several energy intensive industries are contributing to air pollution problems. Cement industry, as an example, is one of these significant sources of several air pollutants and these must be monitored and controlled. This paper deals with five air pollutants from cement plants and these are SO2, NOx, CO2, dust, and volatile organic compounds (VOC). The purpose of this study is to evaluate several available technologies to control each pollutant. Analytic hierarchy process (AHP) technique is used as a decision support tool to find the best technology for each pollutant under multi‐criteria. These criteria are: cost, efficiency, lifetime or duration, and industry acceptability. The technique is illustrated in a case study from St. Marys Plant, located in St. Marys, Ontario, Canada. The results show that adsorption on activated coke technology will be recommended for SO2 reduction. For NOx reduction, the AHP suggests to apply selective non‐catalytic reduction (SNCR) technology based on the four criteria defined. Carbon capture and sequestration (CCS) using MEA technology is chosen for CO2 reduction. For dust reduction, bag filters should be used and increase oxygen concentration at the kiln inlet is the selected technology for VOC reduction. The current paper covers the set of criteria weights considered typical for cement plants. The results presented here are illustrative and user defined weighting is required to make this study valuable for a specific group of users. 相似文献
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中国的大气污染主要以煤烟型为主,燃煤释放的二氧化硫对人类健康和生态环境系统等造成了严重的危害,因此控制二氧化硫的排放至关重要。分析了近年来中国的煤炭消耗量及二氧化硫排放量;概述了二氧化硫的排放源及烟气脱硫技术应用现状,总结了湿法、半干法、干法烟气脱硫技术的优缺点及适用范围;综述了国内外烟气脱硫技术发展概况;分别对传统烟气脱硫技术中的石灰石-石膏法、氨-硫酸铵法、循环流化床法以及新型烟气脱硫技术中的离子液循环吸收法、磷酸钠盐法、氧化铜法的原理、研究现状及发展前景做了具体论述;通过对比以上几种脱硫技术的工艺特征及经济性,指出未来中国烟气脱硫技术的发展方向。 相似文献
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F. J. Büscher 《European Journal of Lipid Science and Technology》1978,80(2):85-89
Coating Technology and Environmental Protection Increasing pollution of air and water by contaminants has led to regulations for the protection of environment. These regulations are based on federal laws governing immission protection and water household. In the coating technology, the technical guideline for the prevention of air pollution is of special significance. As in the time before the legal regulation, voluntary measures for the prevention of environmental pollution are of equally great significance. Manufacturers and processors of paints are engaged with the technical possibilities for the prevention of emissions involved in the use conventional and new coating materials and technologies, that greatly eliminate the occurrence of polluting agents. 相似文献