We live in the world every day. We eat food, drink water, wear clothe, watch TV,ue computer and o on. We are producing wate every moment.Generally peaking, there are four ort of wate. They arematerial wate, organic wate, inorganic wate and poionou & harmful wate. Now, we are going to talk about each ort ofwate one by one.Material wate: it mean the wate of ubtance or thing from which omething ele can be made. Forexample, people throw away the ued metal product and buy a new one, o the old metal wate accumulate.
At lat, theybecome wate. For example, when people finih reading newpaper, the paper will become wate. When the gla i broken, italo become wate. Nobody want to ue a broken window or drink with a broken gla or wear a pair of broken glae. Onceit i broken, it become wate. The rate of uing platic i increaing day by day. People ue platic bag becaue they areconvenient. When they get home, they throw the platic way, paying no attention to the environment. The more convenienceplatic bring to u, the more platic wate i produced. Thi i called “white pollution” a mot platic are white.Some of our product we ue every day are made of rubber, jut like the tyre and the bottom part of our hoe. It’ truethat rubber play an important role in our life. However, it alo bring u ome trouble when it ha been ued for a longtime and become old. The old tyre become wate becaue it can’t break down by nature. Thi i really a big problem.Organic wate: it refer to wate from living thing, including wate from animal, plant and people. Some part ofvegetable are thrown away a wate becaue they don’t tate good. In the pat, people cooked their food uing burning coal,o there left the burned coal, which i uele, like the thrown vegetable. All thi ort of wate contain organim, o iti called organic wate.Actually, we alo have inorganic wate, the oppoite to organic wate, including building wate,broken pottery and china, and cinder.The lat part i harmful and poionou wate, uch a ued batterie, electricalapparatu and medical upplie. Computer and TV et are one part of electrical apparatu.WWw.hAOZUowEn.com
You ee, the old electricalapparatu can et off ome dangerou ray and make the oil harder, even damage the under ground water. Mobile phone are adangerou a computer and TV et. A we know, X-ray can be ued to examine patient, but the X-ray machine are dangerouwhen they are thrown away without any treatment. They can’t be ued to treat the ick, but they till can give off ray. Forthe normal people, they can be dangerou. So, we mut think about thi problem. A wate ha four ort, we can ort theminto each ort that they belong to. It’ convenient to treat them after they are orted. Then we can deal with them ort byort. We have thought out ome method like toring them in order to change them into plant food, or burning them in a hugetove and ue the heat to make electricity. For the firt way, the change rate i much too low and it may pollute the underground water. For the econd one, of coure it’ wonderful if it’ eay to be tried out. But to build uch a huge tovewill cot too much. Not a good method. Now you ee, treating wate i not an eay job.