Green Engineering for Waste Management System …
157
Table 1
(continued)
No.
Green engineering principles
Implementation
6
Conserve complexity
Before determining waste processing technology, Universitas Gadjah
Mada has conducted a survey on the type of waste generated every day.
The type of waste that is processed is organic waste and some plastic
waste especially used mineral water bottles because both types of waste
have a low complexity of material properties. Garbage that has high
material complexity will be disposed of in landfills for time efficiency
7
Durability rather than immortality
Waste processing technology must have an age target that lasts relatively
long and is not risky for the environment. Composting technology has a
long age target because it can be done simply and has no equipment with
high complexity
8
Meet the need, minimize excess
Composting technology is considered more effective when compared to
other technologies in terms of handling organic waste. This has a reason
that the area of Universitas Gadjah Mada has many vegetation plants or
trees so that compost is needed
9
Minimize material diversity
The composting process is a process that does not require too much
additional material. In addition to organic waste, the material used is only
activator and water as supporting material for the fermentation process
10
Integrate local material and energy flows
Leaf waste is a local material used during the process. Availability of
locally available raw materials that will easily save energy and employee
time during the composting process
(continued)
157
Table 1
(continued)
No.
Green engineering principles
Implementation
6
Conserve complexity
Before determining waste processing technology, Universitas Gadjah
Mada has conducted a survey on the type of waste generated every day.
The type of waste that is processed is organic waste and some plastic
waste especially used mineral water bottles because both types of waste
have a low complexity of material properties. Garbage that has high
material complexity will be disposed of in landfills for time efficiency
7
Durability rather than immortality
Waste processing technology must have an age target that lasts relatively
long and is not risky for the environment. Composting technology has a
long age target because it can be done simply and has no equipment with
high complexity
8
Meet the need, minimize excess
Composting technology is considered more effective when compared to
other technologies in terms of handling organic waste. This has a reason
that the area of Universitas Gadjah Mada has many vegetation plants or
trees so that compost is needed
9
Minimize material diversity
The composting process is a process that does not require too much
additional material. In addition to organic waste, the material used is only
activator and water as supporting material for the fermentation process
10
Integrate local material and energy flows
Leaf waste is a local material used during the process. Availability of
locally available raw materials that will easily save energy and employee
time during the composting process
(continued)