1. Lecture (3) : Primary storage of waste.

2. Lecture (3) : Primary storage of waste.
Lecture (2): Lecture objectives:
By the end of this lecture students should be able to:
To know the storage of solid waste categories.
To know the mechanisms of solid waste collection

3. Lecture (3) Topic (1): Primary storage of waste.
Storage of solid waste can be divided into two categories, namely, primary (or on-site) and secondary storage.

4. Primary storage
Primary storage refers to the temporary holding of the solid wastes at or close to their point of generation, and often involves use of containers such as household and public bins, skips or open dumps.

5. Secondary storage:
refers to that occurring at an intermediate point between the primary storage stage and the ultimate disposal of the waste. The method of storing waste depend very much on:
The nature.
Quantity of waste arising,
The method of collection and transport used.

8. Industrial and commercial waste
Waste from industrial and commercial premises can be stored in much larger containers. These are normally formed in mild steel and can be classified as:
1. Demountable containers.
2. Non-demountable containers.
3. compaction containers.

13. Topic (3): Mechanisms of solid waste collection
The collection system may be operated by:
a municipal department,
(2) a contracted private firm or
(3) a combination of public and private haulers

14. Collection of solid waste is carried out by various vehicles,
depending on the type of collection bin and width of the road.
Efficient collection depends on proper selection of vehicles.
collection and transportation process is a major cost

15. Basic Collection Scheme
Based on the availability of service
Communal system
Block Collection
Kerbside/alley
Door to door collection

16. Frequency of Waste collection:
The frequency of solid waste collection depends on:
Quantity of waste.
Rate of generation.
Characteristics of waste.
Climate.
Density and type of housing.
Availability of space within the premises.
Size and type of storage facilities (small, large, individual or communal).
Attitude of generators.