Algae (DTE 1 - 15 August 2020)

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Algae

  • Hydrodictyon reticulum and Chlorella vulgaris — are highly effective in accumulating heavy metals and pesticides and in removing pathogens from water. The algae can be found in any type of water or moist land.
  • Ganga is one of the rivers that host a huge population — over 338 million by some estimates — with about 100 cities and many of the country՚s busiest and largest commercial and industrial hubs situated on its banks
  • Bioremediation of wastewater with the help of algae
  • Phytoplankton՚s offer a chemical-free, low energy way of treating wastewater

Overview

  • Algae which are typically unicellular photosynthetic plants, can not only remove inorganic and organic pollutants, heavy metals, pesticides and pathogens from the wastewater, they can also be used to generate biofuel.
  • The study also found that the algae raised the pH value (denoting a reduction in acidity) , alkalinity and total hardness in some wastewater samples by utilising organic components like nitrogen and phosphorus as food source during photosynthesis, by consuming bicarbonates and by increasing biomass.
  • Increased algal growth added dissolved oxygen into the treated water, making it suitable for aquatic life.
  • Have high lipid content – use catalyst to extract it from thick cell wall and ensure maximum diesel yield
  • Total 17 experiments were conducted for each acid () and base catalyst (NaOH) at and for 60 - 120 minutes. The mixture was then subjected to “transesterification” , a chemical extraction process. The yield was a maximum of for acid catalyst and for the base.

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