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A. Kusumawanto and M. Setyowati
waste can be divided according to the type of waste produced at each university.
Simply put, this type of waste can be divided into organic waste and inorganic waste.
4. Maximize mass, energy, space, and time efficiency
The waste management system must be designed to maximize material use, energy,
equipment, and time efficiency. The amount of waste generation must also be known
for the sustainability of the production process. The amount of waste generation based
on its type can be the basis for maximizing the type of technology and production
capacity. Sorting waste types from the source will make it easier to choose the type
of technology used and save processing time. Energy efficiency during the process
can also be maximized with the selection of appropriate technology.
5. Output-pulled versus input-pushed
In waste management, system inputs will have an influence on the sustainability
of the system or process, so that the type and nature must be considered properly.
Stakeholders as green engineers need to consider the quality and quantity of material
and energy involved during the process. In addition to material/raw material inputs,
the number of resources involved during the process must also be minimized so
that operational costs are low. The number of operators can be minimized by being
supported by waste processing technology that is suitable for campus conditions. The
campus area which has a large amount of vegetation will be more effective when
processing organic waste produced, into products that are useful for plants such as
compost.
6. Conserve complexity
In designing a system in waste management, all aspects from the input to the output
of the complexity of the production process should be considered. The raw material
in waste management system needs to be explored and identified further whether the
material is more suitable to reduce, recycle, reuse, reprocessing, or more efficient to
dispose of directly by considering environmental factors and economic feasibility.
The material with a high complexity component needs considering and calculating the time, cost, and process before taking the recycle process. The high complexity
components of material need more time in the recycling process because the constituent components must go through several difficult treatments. Considering economic feasibility, the recycle process with high complexity components has a low
level of feasibility regarding the objectives of green engineering. Reuse is a strategic
solution for material with high complexity components, and recycle is more suitable
for material with low complexity components.
7. Durability rather than immobility
The selected technology in waste management system must be durable following at
least the expected time and flexible through time and technological development. The
technology used in a process must reach the specified time and avoid the risk of harm
to the environment. The effective and efficient technology with regular maintenance
and repair is more likely to occur compared to long-lasting technology.
A. Kusumawanto and M. Setyowati
waste can be divided according to the type of waste produced at each university.
Simply put, this type of waste can be divided into organic waste and inorganic waste.
4. Maximize mass, energy, space, and time efficiency
The waste management system must be designed to maximize material use, energy,
equipment, and time efficiency. The amount of waste generation must also be known
for the sustainability of the production process. The amount of waste generation based
on its type can be the basis for maximizing the type of technology and production
capacity. Sorting waste types from the source will make it easier to choose the type
of technology used and save processing time. Energy efficiency during the process
can also be maximized with the selection of appropriate technology.
5. Output-pulled versus input-pushed
In waste management, system inputs will have an influence on the sustainability
of the system or process, so that the type and nature must be considered properly.
Stakeholders as green engineers need to consider the quality and quantity of material
and energy involved during the process. In addition to material/raw material inputs,
the number of resources involved during the process must also be minimized so
that operational costs are low. The number of operators can be minimized by being
supported by waste processing technology that is suitable for campus conditions. The
campus area which has a large amount of vegetation will be more effective when
processing organic waste produced, into products that are useful for plants such as
compost.
6. Conserve complexity
In designing a system in waste management, all aspects from the input to the output
of the complexity of the production process should be considered. The raw material
in waste management system needs to be explored and identified further whether the
material is more suitable to reduce, recycle, reuse, reprocessing, or more efficient to
dispose of directly by considering environmental factors and economic feasibility.
The material with a high complexity component needs considering and calculating the time, cost, and process before taking the recycle process. The high complexity
components of material need more time in the recycling process because the constituent components must go through several difficult treatments. Considering economic feasibility, the recycle process with high complexity components has a low
level of feasibility regarding the objectives of green engineering. Reuse is a strategic
solution for material with high complexity components, and recycle is more suitable
for material with low complexity components.
7. Durability rather than immobility
The selected technology in waste management system must be durable following at
least the expected time and flexible through time and technological development. The
technology used in a process must reach the specified time and avoid the risk of harm
to the environment. The effective and efficient technology with regular maintenance
and repair is more likely to occur compared to long-lasting technology.