Sunday, December 24, 2006

Sources, Types and Composition of SW

SWs can be seperated into 4 main category as follows;

1- Municipal Solid Wastes
2- Industrial Solid Wastes
3- Agricultural Solid Wastes
4- Treatment Plant sites, incinerators

Solid Waste Management Activities

The activities associated with the management of Solid Waste can be grouped into six fuctional groups;

1- Waste Generation.
This step is simply identification step.

2- Waste handling and seperation, storage, and processing at the source.
Handling and separation activities until placed in storage containers. From the stand point of materials specifications and revenues from the sale of recovered metarials, best place to seperate for reuse and recyling.

3- Collection
Gathering of the solid waste and recyclables.

4- Seperation and processing and transformation of solid wastes.
Seperation and processing usually occurs at metarials recovery center (MRF), transfer station, combustion facilities, disposal sites.

5- Transfer and transport.

6- Disposal
Landfilling is the final fate of the all solids.

Friday, November 17, 2006

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.