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Perspectives to Waste Management - Lesson Summary

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 The key points from this module are:

"Waste" is anything which is not needed or unnecessary or incorrect utilization of money, materials, energy, time, capabilities, or any other resource etc.
The environmental perspective of waste focuses on useless releases which somehow affects the environment. A natural component of the life cycle, waste results when an entity releases things that are not needed to the environment.
In lean manufacturing, waste is any item or endeavor that is spent but that does not convert raw materials into the product that the consumer is paying for.
In thermodynamics and mechanical engineering, a heat engine is a mechanical system that change the heat or thermal energy or some form of chemical energy into mechanical energy, which can then be consumed to offer useful work. In thermodynamics, the input energy equals to the mechanical work being performed by any heat engine and the part of it is being transferred to a cold body i.e. the heat sink which is also referred as energy waste.