Tam Chui Pik (11) 6S

Major waste in Hong Kong

In Hong Kong, the wastes mainly are plastic, paper and metal, which come from construction, commercial, industrial and domestic.

Web site as reference:

~http://www.soton.ac.uk/~engenvir/environment/waste/wmandust.html

show a typical waste content

Disposal of plastic

There are two ways of disposal of solid waste: incineration and landfilling. In Hong Kong, since incineration is expensive and it pollutes the air, it嚙踝蕭s more common to use landfilling.

Web site as reference:

~http://www.plasticsresource.com/disposal/index.html

shows the method of disposal of plastic

~http://europa.eu.int/comm/environment/waste/compost/index.htm

shows the adventages of using biological treatment

(about landfill)

~http://europa.eu.int/comm/environment/waste/landfill_index.htm

shows brief information of waste landfilling

~http://www.epd.gov.hk/epd/english/environmentinhk/waste/prob_solutions/msw_sectlandfill.html

shows the section of a typical landfill

~http://www.epd.gov.hk/epd/english/environmentinhk/waste/prob_solutions/msw_operation.html

shows the operation of landfill

~http://www.epd.gov.hk/epd/english/environmentinhk/waste/prob_solutions/msw_strategic.html

shows the details of strategic landfill in Hong Kong

(about incineration)

~http://europa.eu.int/comm/environment/wasteinc/index.htm

shows brief information of waste incineration

Degradable of plastic

Degradable plastic means it can be decomposed by the micro-organisms, therefore it means these plastic can be recycled. Mainly, there are three types of degradable plastic: biopolymer, photodegradable plastic and synthetic biodegradable plastics. Nowadays, there is a coding system to identity the types of plastics so that they can be sorted more effectively.

Web site as reference:

~http://americanplasticscouncil.org/benefits/about_plastics/resin_codes/resin.html

shows the coding system of sorting waste platics

~http://www.designinsite.dk/htmsider/md150.htm

shows details of biopolymers

~http://www.polystyrene.org/environment/environment.html

shows brief information of Polystyrene---a kind of plastic that can be recycled

The 嚙踝蕭4R嚙踝蕭 policy

嚙踝蕭4R嚙踝蕭 policy is four principle of waste reduction. They are reduce, recycle, reuse and replace.

Web site as reference:

Web site as reference:

~http://www.plasticbag.com/environmental/pop.html

a main page of some network, show the adventages to the humans and environment of using 3R.

~http://www.soton.ac.uk/~engenvir/environment/waste/wmanreduc.html

a main page of some network, show the ways to rebuke waste

Addition--- Programmes of reducing solid waste

In Hong Kong, there are many programmes to reduce waste. For instance, the Dry and Wet Waste Separation Pilot Programme, Mobile Phone Battery Recovery and Recycling Programme and Trial Recovery Programme for Computers and Electrical Appliances shows the details of. All of these follow the four principles--- reduce, recycle, reuse and replace.

Web site as reference:

~http://www.epd.gov.hk/epd/english/news_events/current_issue/dry_wet_waste.html

shows the details of Dry and Wet Waste Separation Pilot Programme

~http://www.epd.gov.hk/epd/english/news_events/current_issue/mphone_battery.html

shows the details of Mobile Phone Battery Recovery and Recycling Programme

~http://www.epd.gov.hk/epd/english/news_events/current_issue/trial_recovery.html

shows the details of Trial Recovery Programme for Computers and Electrical Appliances

~http://www.epd.gov.hk/epd/english/news_events/current_issue/recycle_clean_bag.html

shows the programme Governments taken to encourage people to reduce using plastic bags