Degasifiers

Degasifiers are  constructed from Polyethylene (PE)  or  Glass  Reinforced Plastic with SS 316 distribution  nozzles  and Polypropylene  stripping  media. The basic principle of degasification is to force a  column of  air up-flow over a thin  film  or  small  drops of down-flow  water.  This procedure  will oxidize iron  and manganese, allow gases  such  as  carbon dioxide, methane  and  hydrogen  sulfide  to  escape  and to let volatile substance such  as phenol vaporize into  the  moving stream  of  air.

The  degasifier has three  main components: the  tower,  the  blower  and  the sump.  The tower is  filled with  a large  surface area packing  that breaks  up  the falling column of water into  a thin film  and  small  drops.  The blower forces  a stream of  air  up flow  through the  water  and  out through  the vent pipe.  The sump receives  the  degasified  water  and  stores it  for a few  minutes  before it i s pumped  to  the point of use.  The collection tank, circulation pump, chemical  injection  system  and  control  panels  are  available  as optional  items. The benefits of using Forced draft Degasfiers include:

        1.     Reduce or eliminate  the use of hydroxide solutions to adjust pH of RO effluent

        2.     Reducing corrosion of distribution piping  and  fittings  by stabilizing RO effluent

           3.       Increase the oxygen level in RO effluent

           4.       Decrease the an-ion bed exchange resin volume  and consequently  reduce overall cost

           5.       Eliminate H2S from contaminated  water

           6.       Removes H2S from RO  and  reduce  the possibility of  RO membranes fouling with sulfur

           7.       Removes H2S from RO effluent  and thus enhance its efficiency