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“环境保护”早已不是什么新鲜的话题了,联合国环境计划署每年也不断颁布有关这方面的法律条款,我国及世界其它国家也都积极颁布了许多禁令并且加大了打击力度,体现出“誓死保护环境”的崇高精神,尤其是我国确定了控制人口数量、扩大绿化面积、逐步解决农村能源问题和控制污染源、治理“三废”等基本措施,甚至大力提倡不用一次性筷子、垃圾袋等。社会舆论则振奋不已。只是,我们感受到的,似乎只有环保风暴的呼啸声,不见明显效果…… 相似文献
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说到一次性餐具,想必浮现在国人脑海里的都是一次性塑料杯、泡沫饭盒、木筷子这些传统制品。然而,在国外,这些一次性餐具早已过时了。 相似文献
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14年前,她倡议参加世界妇女大会的中国代表自备筷子、杯子,让外国的妇女代表团惊诧不已;今天,她仍然背着筷子跑世界,让同样在做环保宣教工作的我们自愧不如。所幸,搭乘2009年的世界环境日的便车,我们采访到专程赶来广州参加环保论坛的吴方笑薇,跟随她回顾了她20年的浪漫环保长征路,也为环保人取了一套经。 相似文献
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动筷子之前,人们对面前一盘盘色泽鲜艳、香气扑鼻的菜肴越来越有些胆战心惊了,生怕下筷之前它是美味,入嘴之后却成毒药。原本人们只在不熟悉和条件简陋的饭馆用餐会有这种担心,如今对自家母亲或妻子做的饭菜,也有几许不安——不是信不过母亲与妻子,而是奸商太狡猾,假货包装得比真货还漂亮——怕善良的家庭主妇们上当受骗,买回劣质的、危害健康的食品。 相似文献
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正语文课是一座绚丽多姿的城堡,丰富而广泛的环境教育资源又是其中一座韵味独特的宫殿。《桂林山水》的迷人风光,《威尼斯的小艇》的异国风情,《浅水洼里的小鱼》中小男孩的心灵美……发现美,欣赏美,追求美,是儿童典型的心理特点。语文教学中,教师应充分利用儿童的这一心理特点,挖掘教材环境 相似文献
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Kanthima Phummal Tsuyoshi Imai Alissara Reungsang Prapaipid Chairattanamanokorn Masahiko Sekine Takaya Higuchi Koichi Yamamoto Ariyo Kanno 《环境科学学报(英文版)》2014,26(6):1361-1368
Hydrogen(H2) production from lignocellulosic materials may be enhanced by removing lignin and increasing the porosity of the material prior to enzymatic hydrolysis. Alkaline pretreatment conditions,used to delignify disposable wooden chopsticks(DWC) waste, were investigated. The effects of NaOH concentration, temperature and retention time were examined and it was found that retention time had no effect on lignin removal or carbohydrate released in enzymatic hydrolysate. The highest percentage of lignin removal(41%) was obtained with 2% NaOH at 100℃, correlated with the highest carbohydrate released(67 mg/gpretreated DWC) in the hydrolysate. An enriched culture from a hot spring was used as inoculum for fermentative H2 production, and its optimum initial pH and temperature were determined to be 7.0 and 50℃, respectively. Furthermore, enzymatic hydrolysate from pretreated DWC was successfully demonstrated as a substrate for fermentative H2 production by the enriched culture. The maximum H2 yield and production rate were achieved at 195 mL H2/g total sugarsconsumedand 116 mL H2/(L·day), respectively. 相似文献