Waste in education: the potential of materiality and practice

This article explores how waste materials and waste practices figure in education, pointing to educational potentials of waste which have hitherto received little consideration in environmental and sustainability education practice and research. Building on empirical research on waste education in Danish schools and preschools, we discuss how an empirical and theoretical focus on waste as material and on waste practices moves beyond conventional approaches to waste in education. Seeking to overcome the shortcomings of habitual-behavioural and rational action approaches, we argue for an approach to waste education which encourages pupils to explore the socio-material aspects and trajectories of waste practices and waste materials.     

工业废水对作物的毒性研究

用化工厂废水、皮革厂废水和该两厂的混合废水分别对水稻种子和蚕豆根尖进行处理,观察水稻种子发芽率及幼苗的生长状况,以及蚕豆根尖细胞的微核率、异形核率和有丝分裂指数等情况.结果表明：化工厂废水对水稻种子的发芽率及幼苗的生长均有极其显著的抑制作用;皮革厂废水及皮革厂与化工厂的混合废水对水稻的发芽率及幼苗生长的影响均不显著.工业废水能诱发蚕豆根尖细胞产生较高的微核率和异形核率.皮革厂废水61.20‰,两厂混合废水为34.34‰,化工厂废水为10.10‰;异形核率：化工厂废水为10%,两厂混合废水为5.16%皮革厂废水为1.38%;化工厂废水及两厂混合废水对蚕豆根尖细胞分裂具有明显的抑制和危害,皮革厂废水对蚕豆根尖细胞有丝分裂指数影响不显著.说明化工厂和皮革厂废水对农作物具有明显的细胞遗传毒性.     

玫瑰花生产废弃物中抗坏血酸含量的测定

本文采用2,6-二氯酚靛酚滴定法[1],分析测定了玫瑰花提取精油后的废弃物——生产废水和废渣中还原型抗坏血酸的含量.其中生产废水中还原型抗坏血酸的含量是0.7425mg/100g;生产废渣中还原型抗坏血酸的含量是6.6mg/100g.结果表明：经过消煮的生产排放废水中还原型抗坏血酸的含量明显低于排放湿花渣中还原型抗坏血酸含量.     

利用酵母菌处理高浓度有机废水研究

对酵母菌在高浓度有机废水处理中的作用进行阐述,总结酵母菌处理技术的研究现状,对几种难处理高浓度有机废水(味精废水、橄榄油厂废水、皂素废水、果汁废水、木薯酒精废液)的酵母菌处理技术进行概括。酵母菌处理技术具有一定的经济效益与社会效益,发展前景良好。     

A knowledge-based system for waste minimzation in metal finishing and electroplating industries

This paper introduces a knolledge-based system for waste minimization in metal finishing and electroplating industries—MEPPI (minimization of environmental problems in processing industries) waste minimization techniques, such as process modification, raw materials reduction and resource recycling and recovery, and suggests its implementation in industries rather than end-of-pipe treatment. The data for process analysis, materials balance for each unit, and test data collection, should be inputed into MEPPI first. One can then obtain information on which unit will generate wastes, what kind waste will be produced, and the waste amount and content. Further analysis of this information can reveal if each unit is operating ideally and if the whole process is in the best state. MEPPI can indicate the possibility of waste minimization in every unit, provide all kinds of waste recovery and recycling methods for users to select from, and can reduce raw materials consumption so that the loading on the end-of-pipe treatment plant will be diminished. Realization of waste minimization will improve the economics of industries. MEPPI is a rich-database, friendly-interactive system integrating waste minimization audit calculation and waste minimization technique in a computer package. It can help designers to estimate the waste of a new factory and also process management or operators to minimize the release of hazardous or toxic waste into the environment. Project supported by the Sino Software Research Center of the Hong Kong University of Science and Technology.     

A KNOWLEDGE-BASED SYSTEM FOR WASTE MINIMZATION IN METAL FINISHING AND ELECTROPLATING INDUSTRIES

ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｇｅｎｅｒａｔｉｏｎｏｆｗａｓｔｅｓｗｉｌｌｂｅｉｎｃｒｅａｓｅｄｗｉｔｈｔｈｅｒａｐｉｄｄｅｖｅｌｏｐｍｅｎｔｏｆｔｅｃｈｎｏｌｏｇｉｅｓａｎｄｉｎｄｕｓｔｒｉａｌｐｒａｃｔｉｃｅｓ.Ａｌａｒｇｅａｍｏｕｎｔｏｆｈａｚａｒｄｏｕｓｏｒｔｏｘｉｃｗａｓｔｅｓｉｓｇｅｎｅｒａｔｅｄｉｎｔｈｅｐｒｏｃｅｓｓｉｎｇｉｎ ｄｕｓｔｒｙ(Ｎａｔｈａｎｓｏｎ ,1 986) .Ａｌｔｈｏｕｇｈｃｏｎｖｅｎｔｉｏｎ ａｌｅｎｄ ｏｆ ｐｉｐｅｗａｓｔｅｔｒｅａｔｍｅｎｔｈａｓｐｒｏｖｅｄｔｏｂｅ…     

PEST模型下高职院校垃圾分类可行性研究

高职学生是一个具有较高素质的代表性的团体,他们对垃圾分类的知识能侧面反映如今城市居民的理解程度。要改进校园垃圾回收工作,就必须先了解现阶段的校园垃圾回收的具体现状,因此,通过对校园垃圾分类回收工作进行相关调查,深入分析高职院校垃圾分类的可行性以及实施情况具有重要意义。     

高校实验室污染的因素及防治对策

高校实验室废弃物管理不当会造成严重的环境污染甚至人员伤害,但是长期以来高校实验室污染问题一直没有受到足够的重视,多数废弃物直接排放,对环境构成潜在威胁,甚至严重污染环境。为了加强高校实验室的安全管理,分析了造成实验室污染的主要因素,提出了防治实验室污染的主要对策。     

利用传统的建材工业推进城市垃圾的资源化

针对城市垃圾的污染现状,分析了城市垃圾资源化及在建材工业中利用的可能性,提出了垃圾产业减少污染和建材工业降低自然资源消耗的内在联系和相互协同的关系。     

高校实验室废液处理工作规范的构建

构建了高校实验室废液处理工作规范,包括校内和校外实验室废液处理工作规范;探索了以校内处理为主、校外处理为辅,依托实训平台自建废液处理系统的废液处理模式,包括预处理、分类收集、存放、运输、处理等环节,有效解决了实验室废液的处理难题,节约了实验室废液处理经费,并为环境工程专业人才培养提供了实验实训平台。该废液处理模式具有十分显著的经济效益、社会效益和环境效益。