在巴西不少城市的街头,挂着许多配有圆形小孔的绿色铁制烟头回收盒。吸烟者可以将烟头投入其中,回收的烟头被送往工厂处理用来造纸。这是巴西利亚大学提出的变废为宝环保新主张,正在全国逐步推广。“烟头造纸”项目负责人、巴西利亚大学教授泰蕾兹·霍夫曼介绍,这一想法最早在2002年由艺术学院的一名学生提出,两人经过几次试验,发现烟头 In the streets of many Brazilian cities there are many green iron-made cigarette-holder recycling boxes with round holes. Smokers can put cigarette butts into them, and the recovered cigarette butts are sent to the factory for papermaking. This is a new idea put forward by the University of Brasilia for turning waste into treasure, and it is being gradually promoted across the country. “Cigarette paper ” project leader, University of Brasilia Professor Thaleszhuofu Man introduced this idea as early as in 2002 by a college of art students, two people after several tests and found that cigarette butts