Thursday, March 10, 2011

segregation of wastes

5 types of color bags
http://ezinearticles.com/?Segregate-Waste-by-Using-Colorful-Trash-Bags&id=4845992

• CLEAR - is normally used to hold recyclable products or things we can reuse or remake into something new. Clear or white color is beneficial so as materials inside can be easily seen even without opening it. What we can put here are tin cans, bottles, papers, etc.
• BLACK - is generally used to hold non-biodegradable and non-infectious wastes, which means those that cannot be easily decomposed. Examples of which are plastic cans, Styrofoams, candy wrappers, Popsicle sticks, etc.
• GREEN - is mainly used to carry biodegradable materials or those wastes that can be easily decomposed. We can see these as left-over foods, vegetables and fruit peelings, dried leaves, twigs, etc.
• RED - is commonly used for bio-hazardous or infectious waste products or those that could be harmful to the public's health. Usually these trashes are taken from the hospitals or clinics such as syringe, cotton, disposable cups, plastic food bags, human wastes, etc.
• BLUE - is usually used to handle industrial materials or those bulk goods for businesses. Examples of these are glasses, heavy plastics, fabrics, woods, etc.

Tuesday, March 8, 2011

Few history snippets

history of city of memphis -http://www.cityofmemphis.org/framework.aspx?page=669
>> the MSW fees is significant
>> they also started around 50 yrs back


History of Solid Waste Disposal

* Lack of Solid Waste management led to the epidemic of plague that killed 50 percent of 14th century Europians.

* By 19th century, public health measures were started tı be taken collection and disposal of food wastes to control vectors of disease.

- In 500 BC, the Athens organized the first municipal landfill in the western world and required waste disposal tı be at least one mile from city walls.

- The first incinerator in the US is built on Governor's Island, New York (1885)

- In 1888, English Parliament puts a ban on waste disposal in public waterways and ditches. Waste disposal methods involve simply throwing garbage out of windows and doors.



states of minnesota
http://www.co.rice.mn.us/uploadedcontent/forms/swhistory2005.pdf

waste history from 6000BC
http://environmentalchemistry.com/yogi/environmental/wastehistory.html

history of solid waste in pensylvania
http://environmentalsoils.cas.psu.edu/PRO/A%20History%20of%20Solid%20Waste%20Management%20in%20Pa.ppt


Indiana state
http://www.solidwastedistrict.com/