Sunday, May 24, 2020

മഴക്കാലരോഗങ്ങൾ -അറിയാം, അകറ്റാം, മലമ്പനിയുംവൈറൽ പനിയും by Dr. Mabel Merl...

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Microbes in waste water

  Typical raw sewage has 99.9% water and 0.1% organic and inorganic solids. The following components make the sewage: ·          The organic...