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本文主要介绍了目前室内甲醛污染控制的主要方法,重点对光催化氧化法的净化机理和净化过程进行分析,总结方法的优缺点以及研究现状。 相似文献
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以对全省14个档案馆的测试数据为基础，分析了甲醛污染的主要来源和危害，提出提高档案库房空气质量的一系列对策。 相似文献
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传统的库房保护主要是利用温湿度计测试档案库房空气的温湿度.随着祖国现代化建设步伐的加快,各种建筑装饰材料的大量投放、汽车拥有量的不断上升,以及各种废气和有毒气体的排放,给城市空气带来了新的污染源,增加了污染强度.致使室内、外环境空气品质都有不同程度的恶化.环境空气的污染对档案库房的影响也是很大的. 相似文献
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图书馆室内植物装饰与读者心理 总被引：3，自引：0，他引：3
本文阐述了现代图书馆室内植物装饰的意义、特点、常用植物种类及装饰类型等方面的内容,探讨了现代图书馆室内植物装饰对读者心理的影响,指出为读者营造一个舒适高雅的阅读环境具有十分重要的意义。 相似文献
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汇总各方资料来看，啤酒“甲醛门”事件起源于一封匿名信。2005年7月5日，某报刊登《啤酒业早该禁用甲醛》的报道，该报记以这封匿名的读来信为线索展开了调查。此后在转载过程中章已经被放大到相当的程度，7月7日一些网站再予以转载，“95％啤酒加甲醛”的说法开始广泛传播。7月11日韩国下令要求有关方面紧急收回并检测今年进口的中国啤酒，7月12日日本收回中国啤酒检测。按照友邦惊诧论的逻辑，啤酒“甲醛门”就这样爆发了。 相似文献
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受环境和气候的影响,不同地区档案库房空气微生物的种类不同,对不同库房消毒灭菌剂的敏感性和效果会存在一定差异。为精准了解青岛地区档案库房空气微生物的物种种类,本研究通过自然沉降法采集、培养、纯化了档案库房空气微生物,并采用宏基因组测序方法对微生物物种进行了精准鉴定。为有效治理档案库房空气的微生物污染,采用甲醛高锰酸钾化学熏蒸法,对微生物污染严重的库房进行了消毒处理。结果显示,青岛地区档案库房中存在多种微生物,包括真菌、细菌和病毒,其中含量前六十的微生物物种按"属"分类的真菌有6属,细菌有51属,病毒有3属;含量前六十的微生物物种按"种"分类的真菌有5种,细菌有54种,病毒有1种。通过甲醛高锰酸钾化学熏蒸消毒15小时后,库房空气真菌消亡率为59.1%,细菌消亡率为46.6%,效果显著。本研究为精准了解档案库房空气微生物物种种类及档案库房空气消毒灭菌提供了理论依据和实践参考。 相似文献
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通过对河南理工大学图书馆室内空气质量进行检测,分析了影响室内空气质量的三大因素:物理污染、化学污染和生物污染。并提出了建设绿色低碳建筑、选用绿色环保装修材料和家具、降低电磁辐射污染、降低噪声污染、吸附污染的气体、保持良好的通风、合理自然采光、抓好室内卫生清洁、馆内定期进行消毒、搞好室内植物绿化、定期进行室内空气质量检测和分析、加强公共空间意识和环保意识宣传等优化室内空气质量的策略。 相似文献
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《文物保护研究》2013,58(3):201-210
AbstractThirty artists' colors have been exposed for 12weeks to 120ppb of formaldehyde in purified air as well as to purified air alone (control experiment). The exposure was carried out in the dark at ambient temperature (19 ± 2°C) and humidity (RH 44–52%). Color change (?E) was measured using a reflectance color analyzer after one, two, three, four, six, eight, 11 and 12 weeks of exposure. Color parameters (x, y, X, Y, Z, L*, a*, b* and ?E)"were also calculated from the 380–700nm spectra, recorded with a reflectance spectrophotometer, of unexposed colorants and of colorants exposed for 12 weeks to purified air and to formaldehyde. Regression analysis of the two data sets indicated that the color changes measured by these two methods were in excellent agreement (nearunity slopes, with correlation coefficients > 0.99). Exposure to either formaldehyde or pure air on watercolor paper resulted in little or no color change for all the colorants tested, including inorganic colorants, alizarin lakes, quinacridones, triphenyl methanes, indigo derivatives, arylamides and natural colorants such as curcumin. Formaldehyde, which is ubiquitous in indoor air, including museum air, does not appear to be a major threat to colorants in museum collections. 相似文献
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The implementation of chemical filtration in air-conditioning systems in archive and library repositories has become standard practice for heritage institutions in many countries. This practice is codified in official standards with general reference to a substantial body of scientific publications on the effects of air pollutants on paper materials. In this paper we report the application of a well-established decision analysis approach elaborating an integral cost-benefit perspective to provide decision support to four European national heritage institutions confronted with dilemmas in connection to chemical air filtration. Available scientific evidence for air pollution induced damage of paper material is reviewed and weighed against financial and environmental costs of air pollution control. Exposure of paper to both indoor and outdoor generated air pollutants at typical concentration levels observed within storage areas is expected to cause minimal to no additional yellowing and embrittlement, while the costs of chemical air filtration are significant. From a cost-benefit perspective the use of chemical air filtration in typical library and archive repositories is therefore discouraged. 相似文献
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ABSTRACTChalconatronite, Na2[Cu(CO3)]2·3H2O, is formed as a corrosion product when copper alloys are exposed to sodium carbonate solutions in the air. This also happens when metals come into contact with corroding soda glass which forms alkaline surface films in reaction with humidity from clean air. More often, substantial amounts of formaldehyde are present indoors which react to formate via the Cannizzarro reaction and accumulate over time in the films. Twenty cases of chalconatronite (including two mentioned in the literature) are reported as occurring on heritage objects with glass in contact with copper alloys: Baroque reliquaries with set glass gems, enamel on metal (sixteenth century and a modern replica of intentionally unstable composition), Christmas tree glass baubles with wires, glass buttons with metal shanks, a glass figure with a wire support, miners’ lamps, and a glass framed daguerreotype. These confirmed identifications might help conservators in investigating similar cases to shed more light on the formation conditions. 相似文献
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《文物保护研究》2013,58(4):289-303
AbstractA tube-type passive sampling method has been developed and assessed for the quantification of formaldehyde (methanal) vapours in indoor air. The sampler was designed for use in museums where test sites often include small enclosures with low air movement. The procedure involves collection of formaldehyde vapours in a Palmes diffusion tube containing a paper support impregnated with an acidified solution of 2,4-dinitrophenylhydrazine (2,4-DNPH). After sampling, quantification of the trapped F-DNPH is achieved by high performance liquid chromatography (HPLC) analysis with UV detection at 350nm. To validate the procedure, permeation devices were used to generate formaldehyde-containing atmospheres, 81–2975ppb, in a 20dm3 chamber so that experimentally derived sampling rates could be calculated and compared with the theoretical value. Three 2,4-DNPH solutions were investigated to obtain an efficient and stable trapping solution. Best results were achieved with a 27mg.ml?1 solution of 2,4-DNPH which contained 4·5%v/v orthophosphoric acid. At 55% RH, and with low airflow in the chamber, the experimentally derived sampling rate of 1·34 ± 0·17ml.min?1 was in good agreement with the theoretically derived sampling rate of 1·36ml.min?1 The passive sampling method was repeatable and reproducible with RSD (relative standard deviation) values below 7%for long-term exposures at low air velocities. 相似文献
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已被微生物污染的档案库房如何治理是多年来困扰档案工作者的难题之一,担忧主要来自治理用的物理方法或化学试剂对档案实体的破坏及对人体健康的危害。本文通过采用低剂量甲醛高锰酸钾熏蒸消毒档案库房,检测并对比了消毒前后不同时间的纸张含水量、PH值、耐破度、耐折度、撕裂度等评价纸张耐久性的重要指标。结果发现,甲醛高锰酸钾熏蒸消毒可以小幅度降低纸张PH值、引起纸张耐破度下降,但对纸张含水量、撕裂度、抗张力、耐折度和断裂伸长率的影响没有统计学差异。综上,本文认为使用低剂量甲醛高锰酸钾进行档案库房熏蒸消毒会对纸张耐久性产生一定影响,但影响有限。在档案库房微生物污染严重需要治理的情况下,可以考虑使用甲醛高锰酸钾化学熏蒸消毒。 相似文献
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[目的/意义]旨在实现图书馆室内精确定位,指引读者更快找到所需资源,提升图书馆服务效率。[方法/过程]以微信公众平台为依托,结合蓝牙硬件设备iBeacon及HTML5页面,实现北京市委党校图书馆室内定位系统的设计与开发。[结果/结论]读者通过使用室内定位服务可更好地寻找到周边的优质图书资源,并且对图书馆的楼层布局有一个更全面的了解;基于蓝牙设备的图书馆室内定位成本低、准确度高,读者更有意愿主动通过它去了解图书馆的相关资源。 相似文献