Human responsibility for Environmental conservation

1. Human responsibility for Environmental conservation By: 6B (10) Lan Tin Yan 6B (12) Leung Yuen Ying

2. Introduction ♦Human activities alter the natural environment. ♦ Human activities: rapid growth in human population, rapid industrial and urban development, etc. What should we do to stop the development of undesirable changes?

3. Chart of release of domestic wastes and City’s solid wastes in 2000 to 2005 everyone per day (in kg) Domestic wastes City’s solid wastes

4. This diagram shows more and more solid wastes are collected by recycling bins. City’s solid wastes collecting rate in 2000 to 2005 Collecting rate Year

5. What is conservation and sustainable development?

6. Environmental conservation - wise management of our environment

7. Sustainable development - meets the present needs without compromising the needs for a good quality of life in our future generations

8. Chart showing the proportion of municipal solid waste recovered in 2000

9. Hong Kongese lack the sense of waste reduction and do not use the recycling bins wisely.

10. What does recycle mean? ♦ Changing used materials to usable goods. ♦ A way of conservation.

11. The importance of waste recycling ♦ Reducing the rate of consumption of natural resources. ♦ Reducing air pollution caused by human activities ♦ Reducing the pressure of landfill sites. ♦Teaching people the effective way of waste disposal and environmental protection.

12. The waste recycling industry in Hong Kong

13. Hong Kong has a substantial waste recovery industry. The waste materials recovered are mainly for export. There are about 300 active waste collectors and 50 waste recyclers in Hong Kong.

14. Recycling of paper ♦Several % of the waste paper generated in Hong Kong was recovered. ♦The recovered waste paper was either recycled or re-processed in Hong Kong, Mainland China and other countries. ♦About 120 private waste paper collectors and 2 paper recyclers in Hong Kong. ♦The recycled paper were used for packaging. Examples of paper recyclers in Hong Kong: Lau Choi Kee Paper Co. Ltd. A Division of Greengrowth Co. Ltd

15. Lau Choi Kee Paper Co. Ltd. About the wasted paper: ♦Recycle one tonne of paper can save 17 lives of tree. 6953 gallon of water, 463 gallon of oil, 4066 thousands watts of energy. ♦In order to protect our natural resources, we should recycle the wasted paper.

16. A Division of Greengrowth Co. Ltd ♦Using Skylight Recycle System (SRS). - collecting the papers of document of companies and recycle them. ♦Have experience for many years. ♦Promise that the confidential document would not be disclosed.

17. Recycling of metal ♦Carried out in Hong Kong for several decades. ♦The industry has been developed from individual waste collectors to large scale collection and recycling industry. ♦Metal wastes are broadly classified into -ferrous metals (e .g cast iron and alloy steel scrap) -non- ferrous metals (e .g copper, aluminium …). Examples of aluminium recycler in Hong Kong: Hop Lee Lung Metals & Waste Paper Wing Shing Metal Powerful Union Industrial Co. Hong Luen Metal Trading Company

18. Hong Luen Metal Trading Company ♦First established in 1986. ♦Major business are hardware trading, scrap metals collection, recycling of scrap wire and cable. ♦Has two factories in China. ♦Have a collection warehouse that used as a transit station in Tin Shui Wai.

19. Powerful Union Industrial Co. ♦Specialize in high value purchase of factory stocks, electronic parts, machines, computer accessories… ♦ Recycle electronic wastes from different countries (e .g U.S., Korea & Japan.)♦Provide treatment for returned electronic wastes from factories in Mainland China. ♦Provide electronic waste recycling service

20. Recycling of plastics ♦Confined mainly to clean and homogeneous scraps such as plastic bottles and plastic bags due to the complicated processing procedures. ♦Only a small proportion of the plastic wastes was recovered. Examples of plastics recycler in Hong Kong: Hoi Kee Plastic Material Company Limited Professional Recycle Service Ltd.

21. Super 4R

22. 4R includes: REDUCE, RECYCLE, REUSE and REPLACE. Let’s act 4R to help protecting our environment!

23. REDUCE • buy and use less unnecessary items • ♦Reduce the use of motor vehicles. • ♦Write on both sides of paper. • ♦Reduce the use of wooden stuffs. • ♦Reduce the use plastic bags, bring your own bag. • ♦Reduce the use of non-biodegradable stuffs.

24. RECYCLE • change used materials to usable goods • ♦Collecting the old newspaper and magazines and sending them • to the factory for paper recycling. • ♦The used aluminium cans and discarded cars or ships can be • processed to obtain metal for re-use. • ♦The properly treated pig and poultry manures can be used as • fertilizers. • ♦Place the used plastic bottles, aluminium cans and waster paper • into the recycling bin separately.

25. REUSE -use the things in different ways repeatedly until it cannot be used anymore ♦Choose the reusable tableware, cups and plates. ♦Reuse the plastic bags that you get from shops. ♦Donate old computers to charities. ♦Reuse old envelopes. ♦Reuse files.

26. REPLACE -use the materials that cause less harm to our environment ♦Use handkerchief instead of tissue paper. ♦Use durable equipment instead of disposable one. (e. g Use stainless steel instead of disposable plastic fork. Use durable plastic plate instead of paper plate.) ♦Use rechargeable battery instead of non-rechargeable one. ♦Use egg shell to replace chemical fertilizer.

27. Think of them as your assignment… • In order to protect our environment, so… • 1.What can you help? • 2. What can the government help? • 3. What can the industrialist help?

28. Reference ♦http://www.lauchoikee.com.hk/front/bin/home.phtml ♦http://srs-recycle.com.hk/srs.htm ♦http://yp.sina.com.hk/cgi-bin/listing.cgi?c=166&p=19406&r=19424&page=6 ♦http://www.sunbase.ecomm.hk/front/bin/ptlist.phtml?Categ ory=1150 ♦http://www.powerfulunion.biz.com.hk/ ♦http://www.hongluenmetal.com/ ♦http://hk.knowledge.yahoo.com/question/?qid=7006070301297

29. The End