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  2. Waste stabilization pond - Wikipedia

    en.wikipedia.org/wiki/Waste_stabilization_pond

    Waste stabilization ponds reproduce these biological phenomena before they take place in the receiving surface water and cause the pollution problems due to oxygen consumption. The ponds receive wastewater, and, by natural processes similar to those that take place in the surface waters, carry out stabilization of the organic matter inside them ...

  3. Human impact on the environment - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    This form of pollution can lead to many problems. One is the degradation of aquatic ecosystems. Another is spreading water-borne diseases when people use polluted water for drinking or irrigation. [154] Water pollution also reduces the ecosystem services such as drinking water provided by the water resource.

  4. Constructed wetland - Wikipedia

    en.wikipedia.org/wiki/Constructed_wetland

    Vertical flow constructed wetlands are considered to be more efficient with less area required compared to horizontal flow constructed wetlands. However, they need to be interval-loaded and their design requires more know-how while horizontal flow constructed wetlands can receive wastewater continuously and are easier to build.

  5. Vertical stabilizer - Wikipedia

    en.wikipedia.org/wiki/Vertical_stabilizer

    The vertical stabilizer is the fixed vertical surface of the empennage. A vertical stabilizer or tail fin [1] [2] is the static part of the vertical tail of an aircraft. [1] The term is commonly applied to the assembly of both this fixed surface and one or more movable rudders hinged to it. Their role is to provide control, stability and trim ...

  6. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    A practical definition of water pollution is: "Water pollution is the addition of substances or energy forms that directly or indirectly alter the nature of the water body in such a manner that negatively affects its legitimate uses." [1]: 6 Water is typically referred to as polluted when it is impaired by anthropogenic contaminants.

  7. Sewage treatment - Wikipedia

    en.wikipedia.org/wiki/Sewage_treatment

    This form of pollution can lead to many problems. One is the degradation of aquatic ecosystems. Another is spreading water-borne diseases when people use polluted water for drinking or irrigation. [51] Water pollution also reduces the ecosystem services such as drinking water provided by the water resource.

  8. Environmentalism - Wikipedia

    en.wikipedia.org/wiki/Environmentalism

    Environmentalism or environmental rights is a broad philosophy, ideology, and social movement about supporting life, habitats, and surroundings.While environmentalism focuses more on the environmental and nature-related aspects of green ideology and politics, ecologism combines the ideology of social ecology and environmentalism.

  9. Directional stability - Wikipedia

    en.wikipedia.org/wiki/Directional_stability

    Directional stability is stability of a moving body or vehicle about an axis which is perpendicular to its direction of motion. Stability of a vehicle concerns itself with the tendency of a vehicle to return to its original direction in relation to the oncoming medium (water, air, road surface, etc.) when disturbed (rotated) away from that original direction.