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本文就除臭研究的目的和意义、臭气的种类与测定、中试除臭方法与工艺等问题进行了介绍,同时就除臭试验及试验情况与结果进行了分析。 相似文献
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目前。污水处理厂除臭已普遍受到人们的重视,由于城市化进程的加快导致城市用地日益紧张,已建或新建的城市污水处理厂周围往往都有人口密集的居民生活区或公共活动区。由于多数已建污水处理厂没有除臭措施或除臭设施不完善,随着城市污水处理厂恶臭污染的控制法规和对策的日益完善,建设污水处理厂的除臭工程势在必行。 相似文献
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电冰箱致冷基本功能目前将尽可能发展得更完善。特别在冰箱内的臭味必需除去。除臭的方法有很多种。本文介绍了除臭单元的新进展。 相似文献
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由于进厂污水含硫高的特殊性,胜利石油管理局供水公司污水厂三期改扩建工程投产后,车间内硫化氢浓度严重超标,严重影响职工健康和周边环境。为治理硫化氢安全隐患,水厂实施了多期除臭试验及工程改造,先后试验了植物液喷淋、离子除臭、化学塔中和、生物滤床等除臭方法,最后确定选用臭气源封闭+生物滤床系统对臭气进行集中处理。工程实施后运行效果良好,硫化氢等有毒有害气体指标顺利达标。 相似文献
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随着人类社会经济的发展,城市污水处理在运行过程中所产生的臭气问题已引起越来越多的关注。离子除臭技术相比较生物法有着占地面积小,运行稳定,管理简单,运行费用低等优点,在国内污水处理除臭工程中有着广泛的应用。安徽省某污水处理厂的规模为8m3/d,污水处理粗格栅及进水泵房、细格栅及沉砂池、污泥浓缩脱水车间恶臭程度大,设计采用活性氧离子除臭设备,对产生的臭气进行收集处理,并达标排放。 相似文献
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如今,号称“抑菌除臭吸湿”的竹纤维纺织品受到了不少消费者的喜爱,但也有不少商家给产品标注了“防紫外线”、“释放负离子”、“防辐射”等养生功能,有消费者对此表示疑惑。专家表示,竹纤维产品确灾能抑菌除臭,但养生功能多为噱头,消费者应谨防忽悠。 相似文献
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目的以红鳍东方鲀鱼皮制得的胶原蛋白肽(1~5 ku)和红枣汁为原料研制胶原蛋白肽红枣汁复合饮料,并确定其最佳的生产工艺。方法以氮得率和感官评价为指标,通过单因素和正交试验研究脱腥时间、脱腥温度、活性炭添加量等3个因素对胶原蛋白肽脱腥效果的影响;以感官评价为指标,通过单因素和正交试验研究胶原蛋白肽和红枣汁的添加配比、蔗糖添加量、柠檬酸添加量对胶原蛋白肽红枣汁复合饮料风味、澄清度、香气、色泽的影响;以菌落总数和感官评价为指标,研究温度对胶原蛋白肽红枣汁复合饮料灭菌效果的影响。结果活性炭添加量为2.00 mg/mL,脱腥温度为45℃,脱腥时间为20 min,添加胶原蛋白肽和红枣汁的体积比为2:1,蔗糖的质量分数为2.50%,柠檬酸的质量分数为0.15%,在压力0.02 MPa,温度105℃条件下灭菌10 min时,感官评分最高,所制得的饮料酸甜可口、口感顺滑,具有浓郁的红枣香气和特有的胶原蛋白香气。结论适宜的活性炭添加量、脱腥温度、脱腥时间,蔗糖、柠檬酸添加量,胶原蛋白肽和红枣汁的添加配比,以及灭菌条件,可以最大限度地保留饮料的特有风味。 相似文献
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高活性的光催化二氧化钛纳米材料与高气孔率的三维多孔泡沫陶瓷材料复合,得到的光催化泡沫陶瓷过滤器,具备高活性、大表面积、大通量、以及陶瓷的耐高温、耐化学腐蚀、循环适用性,在大气/水净化领域率先得到了广泛应用。在工业领域的废气脱臭处理、在农业领域的农药废水太阳光降解、在医疗卫生领域的实验室医院空气杀菌处理、在交通领域的高速列车空气净化等,已经展开应用。综述了国内外光催化泡沫陶瓷过滤器的应用研究现状、问题及其发展趋势。 相似文献
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半导体制冷冰箱的研究 总被引:3,自引:0,他引:3
主要介绍以半导体器件为制冷源的新型绿色食品冰箱.采用帕尔贴效应的制冷方法,使其具有换气、除臭、冷藏、冷冻、食品保鲜等多项功能.该冰箱无污染,制冷速度快,噪声低,具有潜在的市场开发前景. 相似文献
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洁净厂房因为工艺的要求,往往都需要恒温恒湿环境,而在除尘处理时,大量的能量又伴随着废气排放到大气中,既浪费了能源,也造成了热污染。如将除尘系统的“能量风”经过滤、去异味等净化处理后,进入空调系统的空气处理机组,作为补充空调新风的一部分,将其能量充分回收并再利用,可实现废气零排放,不仅节约了大量能源,也保护了环境,具有直接的经济利益和良好的社会效益。 相似文献
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规模化畜禽养殖场污染防治技术研究 总被引:15,自引:0,他引:15
规模化畜禽养殖场污染防治是当前我国农业环境污染整治的重点,也是解决农业面源污染的关键。在深入调查研究的基础上,结合国内外成功的经验,研究并提出农村规模化畜禽养殖场污染的防治技术,包括养殖场固体粪污处理及资源化利用技术,养殖场污水处理及综合利用技术和畜禽养殖场的除臭技术。对常用技术如厌氧一好氧联合处理,生态工程处理技术均做了介绍和评价。 相似文献
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Non‐thermal plasma for emission protection: State of the art and future prospects The reduction of emissions from exhaust gas streams is becoming more and more important issue in the highly industrialised society. Due to its impact on air, soil and water exhaust pollutions affect the whole environment and thus human health. Therefore environmental norms and standards are constantly increased by national and international authorities. The possibilities of air‐pollution control by means of non‐thermal plasmas are well known. Plasmas contain active and highly reactive species, in particular electrons, ions, atoms, molecules, and radicals, which can decompose of filter pollutant molecules and particulate matter. This contribution intends to summarize the possibilities or pollution control by means of non‐thermal plasmas. Commercially available plasma based and plasma assisted processes for flue gas treatment and deodorization are described. Current trends and concepts will be discussed. 相似文献
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Ice formed from water in which ozone gas is dissolved is promising for the cold storage of foods because of the ozone's sterilization and deodorization capabilities. However, effective dissolution of ozone gas in water and taking ozone gas into ice are not easy. Furthermore, the decomposition rate of the ozone itself is usually very fast, regardless of its phase. Thus, to effectively take ozone gas into ice, the authors have developed ice containing ozone micro-bubbles. In this paper, ice containing ozone micro-bubbles formed by adding surfactant was kept for a desired time at a desired constant temperature without melting of the ice. The concentration of ozone micro-bubbles fixed in ice and the ozone gas concentration released from ice by melting were measured to investigate the ozone decomposition rate due to fixation in ice and the characteristics of the released concentration. Furthermore, the influences of surfactant on both concentrations were examined. 相似文献
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Removal of malodorous organic sulfides with molecular oxygen and visible light over metal phthalocyanine 总被引:2,自引:0,他引:2
Organic sulfides are malodorous compounds in environment. In this work, deodorization of model substrates, methyl phenyl sulfide, 2-mercaptobenzoic acid and benzyl 2-propenyl sulfide, have been studied in an aerated methanolic aqueous solution under visible light irradiation (lambda>450nm), using metal phthalocyanine sulfonate (MPcS, M=Al, Pd) as a photocatalyst. The result shows that all the representative sulfides could be efficiently oxidized, with concomitant formation of sulfoxide and sulfone as the main products. Kinetic study using sodium azide and benzoquinone as reactive species scavenger reveals that the sulfide oxidation is mainly initiated by singlet oxygen. It is also observed that the rate of sulfide oxidation increases with increasing the water content in the mixed solvent. Recycle experiments with immobilized PdPcS on organoclay or immobilized AlPcS on anionic resin demonstrates that the sensitizer could be repeatedly used, without significant loss in the photosensitization activity. 相似文献