Good evening to every one The topic that I will present to day is about this! What do you think when you look at this picture?
Yes,you are right. I am going to present about how paper are made? before I start,can I know that anyone in this class has papers with you ,can you show me? Ok Thank you. See ! most of us show the plate paper in your hand but actually we have many types of paper around us for example. We have soft paper,plate computer paper and the paper that can hold the liquid or even our money Do you know where is paper made from?
Yes, most of us knew that papers are made from the tree. But do you know exactly how is it made? And why is it that many forms of paper can be sold different. and all these come from tree. The purpose that I chose this topic is first, I want to show the basic process of making paper. Second, I want to show the interested information about environmental impact of making paper which in the hope that it can increase your awareness to use paper wisely . The paper industry is one of the most important industry in the world. At the same time, it's also cause many environmental problem. We cannot stop to produce paper but we can use it wisely.
Well, you might want to know that am I credible enough to talk about this? AS I told you,I am studying third year of chemical engineering and I have learn all basic process that used in industry. Moreover, when I was high school, I join edthe recycle waste project which need to manage all the waste in school and most of them are paper. From that project ,I have learnt some basic process of making paper from the recycle trader. In my presentation,I will talk about three main points
First: the history of paper
Second: the basic process of paper
Last: environmental impact of making paper
The first paper-like substance was invented by the Egyptians over 6,000 years ago. That we called “ Papyrus” which is the root of our English word paper, It was made by weaving fibrous plants...
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