共查询到19条相似文献,搜索用时 421 毫秒
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脉冲放电汽车尾气净化新技术研究及产品开发 总被引:6,自引:0,他引:6
本文根据气相反应动力学理论把脉冲放电活化技术应用于汽车尾气的处理,并研制出一种适用于各类汽油车辆尾气净化的脉冲放电汽车尾气净化器。 相似文献
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影响长治市市区环境质量的主要因素是锅炉烟尘、餐饮业燃煤烟尘、油烟排放以及汽车尾气等,2002年该市实施“净空行动”以改善主城区空气质量。本文阐述了“净空行动”实施过程和成效,为北方中小型城市的燃煤污染治理提供一种切实可行的措施。 相似文献
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全世界汽车尾气污染问题日益严重,受到社会的广泛关注和重视。当前三效催化剂作为第四代汽车尾气催化剂在世界上得到了广泛的认同,并已进行了深入的研究和开发。阐述了我国机动车尾气污染与防治的现状、三效催化转化器的工作原理及其研究进展。 相似文献
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M. B. M. Bracke Carolien C. De Lauwere Samantha M. M. Wind Johan J. Zonerland 《Journal of Agricultural and Environmental Ethics》2013,26(4):847-868
The Dutch policy objective of a fully sustainable livestock sector without mutilations by 2023 is not compatible with the routine practice of tail docking to minimize the risk of tail biting. To examine farmer attitudes towards docking, a telephone survey was conducted among 487 conventional and 33 organic Dutch pig farmers. “Biting” (of tails, ears, or limbs) was identified by the farmers as a main welfare problem in pig farming. About half of the farmers reported to have no tail biting problems in their own herd. When farmers did report problems, they most often reported figures between 1 and 5 % of the animals. High incidences of tail biting were anticipated when trying to keep undocked pigs. Enrichment materials used in the conventional sector included mainly chains (52–63 % of the farms) and hanging rubber or plastic balls (22–30 %). Straw, sawdust, or wood shavings was hardly provided in conventional pig farming (2–3 %), in contrast to organic farming (88–100 % of farms). Conventional pig farmers feel a curly tail is not very important for sustainable pig farming. They consider enrichment to be less effective and tail docking to be less stressful for them and their piglets than their organic colleagues do. Pig farmers identified climate as a main risk factor for tail biting as opposed to enrichment. The objective of reducing routine tail docking requires solutions for dealing with tail biting problems at the farm level. In this process, transfer of scientific knowledge about enrichment materials and other measures to prevent and cure tail biting is critical, as is a change in farmer attitudes and awareness of the moral issues involved. 相似文献
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异(臭)味气体对人体的危害非常严重,尤其是有机化工企业在生产过程中排放的尾气会对周围环境造成严重污染。本文简要介绍了在实验室条件下低温等离子体对异(臭)味气体分子的分解作用及其在工业上的应用实例。 相似文献