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  2. Waste heat - Wikipedia

    en.wikipedia.org/wiki/Waste_heat

    For example, global forcing from waste heat in 2005 was 0.028 W/m 2, but was +0.39 and +0.68 W/m 2 for the continental United States and western Europe, respectively. [21] Although waste heat has been shown to have influence on regional climates, [22] climate forcing from waste heat is not normally calculated in state-of-the-art global climate ...

  3. Thermal pollution - Wikipedia

    en.wikipedia.org/wiki/Thermal_pollution

    Thermal pollution, sometimes called "thermal enrichment", is the degradation of water quality by any process that changes ambient water temperature.Thermal pollution is the rise or drop in the temperature of a natural body of water caused by human influence.

  4. Energy recycling - Wikipedia

    en.wikipedia.org/wiki/Energy_recycling

    Energy recycling is the energy recovery process of using energy that would normally be wasted, usually by converting it into electricity or thermal energy.Undertaken at manufacturing facilities, power plants, and large institutions such as hospitals and universities, it significantly increases efficiency, thereby reducing energy costs and greenhouse gas pollution simultaneously.

  5. Second law of thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Second_law_of_thermodynamics

    One example of this is the cooling crystallization of water that can occur when the system's surroundings are below freezing temperatures. Unconstrained heat transfer can spontaneously occur, leading to water molecules freezing into a crystallized structure of reduced disorder (sticking together in a certain order due to molecular attraction).

  6. Biodegradation - Wikipedia

    en.wikipedia.org/wiki/Biodegradation

    The degradation rate of many organic compounds is limited by their bioavailability, which is the rate at which a substance is absorbed into a system or made available at the site of physiological activity, [11] as compounds must be released into solution before organisms can degrade them. The rate of biodegradation can be measured in a number ...

  7. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    The earliest of roots of science, which included medicine, can be traced to ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. [11] [12] Their contributions shaped ancient Greek natural philosophy. [13] [11] [12] [14] [15] Ancient Greek philosophers such as Aristotle (384–322 BCE) contributed extensively to the development of ...

  8. Water heat recycling - Wikipedia

    en.wikipedia.org/wiki/Water_heat_recycling

    Installation of a double-walled copper-on-copper heat exchanger in a vertical section of the master drain line in a Canadian home (2007) Water heat recycling (also known as drain water heat recovery, waste water heat recovery, greywater heat recovery, [citation needed] or sometimes shower water heat recovery [citation needed]) is the use of a heat exchanger to recover energy and reuse heat ...

  9. Mechanical biological treatment - Wikipedia

    en.wikipedia.org/wiki/Mechanical_biological...

    Process flow chart. The terms mechanical biological treatment or mechanical biological pre-treatment relate to a group of solid waste treatment systems.These systems enable the recovery of materials contained within the mixed waste and facilitate the stabilisation of the biodegradable component of the material.

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