geography

Arctic Region and Arctic Council

The Arctic is a polar region located at the northernmost part of Earth.

8 Jul, 2020

BRAHMAPUTRA AND ITS TRIBUTARIES

About Brahmaputra River: The Brahmaputra called Yarlung

3 Jul, 2020
Blog Archive
  • 2020 (68)
  • Categories

    Oil Spill Clean up methods

    • Bioremediation: use of microorganisms or biological agents to break down or remove oil; such as Alcanivorax bacteria or Methylocella silvestris.
    • Bioremediation Accelerator: a binder molecule that moves hydrocarbons out of water and into gels, when combined with nutrients, encourages natural bioremediation. Oleophilic, hydrophobic chemical, containing no bacteria, which chemically and physically bonds to both soluble and insoluble hydrocarbons.
      • The accelerator acts as a herding agent in water and on the surface, floating molecules such as phenol and BTEX to the surface of the wate, forming gel-like agglomerations.
      • Undetectable levels of hydrocarbons can be obtained in produced water and manageable water columns.
      • By overspraying sheen with bioremediation accelerator, sheen is eliminated within minutes.
      • Whether applied on land or on water, the nutrient-rich emulsion creates a bloom of local, indigenous, pre-existing, hydrocarbon-consuming bacteria.
      • Those specific bacteria break down the hydrocarbons into water and carbon dioxide, with EPA tests showing 98% of alkanes biodegraded in 28 days; and aromatics being biodegraded 200 times faster than in nature they also sometimes use the hydrofireboom to clean the oil up by taking it away from most of the oil and burning it.
    • Controlled burning:It can effectively reduce the amount of oil in water, if done properly. But it can only be done in low wind, and can cause air pollution.
    • Dispersants: It can be used to dissipate oil slicks. A dispersant is either a non-surface active polymer or a surface-active substance added to a suspension, usually a colloid, to improve the separation of particles and to prevent settling or clumping.
      • They may rapidly disperse large amounts of certain oil types from the sea surface by transferring it into the water column.