Table 4 Comparison of the piloted disposal systems in four pilot schools of Dhaka and Manikganj (April–June, 2017)
Indicator | Swing top bin | Pedal din | Bucket with lid | Chute disposal system |
|---|---|---|---|---|
Capacity (In liter) | Small (10 L) | Small (10 L) | Small (30 L) | Large (765 L) |
Cost (In USD) | 4.5 USD | 6 USD | 4.05 USD | 87 USD |
Need of technical assistance while installing | Easy to be placed, no technical assistance required | Easy to be placed, no technical assistance required | Easy to be placed, no technical assistance required | Need some technical assistance to install (to build pit, make to inlet and placement of connecting pipe) |
Requirement of space to install | Need less place, can be placed anywhere | Can be placed in a narrow space | Can be placed anywhere | Relatively larger space (9 square feet) required to build up the pit. |
Handling | Requires no or minimum touching to dispose | Requires no touching to dispose | Requires minimum touching to dispose | Requires touching to open the lid |
Visibility of pre-disposed waste | Waste is visible while disposing | Waste is visible while disposing | Waste is visible while disposing | Waste is not visible while disposing |
Durability | Low | Low | Low | High |
Maintenance | Requires regular maintenance | Requires regular maintenance | Requires regular maintenance | Does not require regular maintenance |
Ultimate disposal | Requires secondary disposal | Regular secondary disposal is needed to maintain cleanliness | Regular secondary disposal is needed to maintain cleanliness | Disposed materials can be chemically decomposed or incinerated within the pit when it gets filled up |