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AERATION AND AIR STRIPPING              5.19








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                                Orifice-type distributor

























                                Tr0ugh-type distributor
        FIGURE  5.9  Types  of  distributors.  (Source:  USEPA workshop  on emerging technologies  for drinking
         water treatment,  1988.)
   98   99   100   101   102   103   104   105   106   107   108