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http://indianaquariumhobbyist.com/community/ :: View topic - Help With Activated Carbon
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Help With Activated Carbon
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neel12345
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PostPosted: Tue Apr 15, 2008 7:55 pm Post subject: Help With Activated Carbon Reply with quote

 I  just  bought  a  packet  of  PRODAC  Activated  Carbon  from  my  LFS  to  remove  the  medications  I  recently  used  for  my  BPs.But  how  do  I  use  it?  Where  to  place  it  ?  I  have  an  extra  Bodyguard  power  filter.  Can  I  keep  the  bag  of  Activated  Carbon  in  it's  filter  basket  and  use  ?  Please  Help  Me  !
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DJ_Rocky
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PostPosted: Tue Apr 15, 2008 8:02 pm Post subject: Re: Help With Activated Carbon Reply with quote

 Hi  Neel,
 
 Read  the  instruction  manual,  uses  details  are  there.
 
 
                                                 
Quote:                
I  have  an  extra  Bodyguard  power  filter.  Can  I  keep  the  bag  of  Activated  Carbon  in  it's  filter  basket  and  use  ?  Please  Help  Me  !                
YES!
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neel12345
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PostPosted: Tue Apr 15, 2008 8:47 pm Post subject: Re: Help With Activated Carbon Reply with quote

 How  long  does  it  take  for  the  activated  carbon  to  polish  the  water  to  crystal  clear  ?
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DJ_Rocky
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PostPosted: Tue Apr 15, 2008 9:20 pm Post subject: Re: Help With Activated Carbon Reply with quote

 It  depends,  but  generally  it  takes  5-10  days,  max.
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neel12345
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PostPosted: Tue Apr 15, 2008 9:46 pm Post subject: Re: Help With Activated Carbon Reply with quote

 But  my  dealer  told  it  takes  only  24  hours  (!).  Is  that  true  ?
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PostPosted: Tue Apr 15, 2008 10:20 pm Post subject: Re: Help With Activated Carbon Reply with quote

 Depends  on  the  quality  of  the  carbon...
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Deepak_Brid
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PostPosted: Tue Apr 15, 2008 10:48 pm Post subject: Re: Help With Activated Carbon Reply with quote

 Rocky,  I  think  5-10  days  is  a  bit  too  long,  especially  when  it's  primarily  used  for  removal  of  medication!
 
 Neel,
 
 The  Adsorption  depends  on  depth  of  the  Activated  Carbon  (AC)  bed,  granule  size  &  the  flow  rate.
 
 Deeper  bed  &  lower  flow  rate  gives  best  results.  Needless  to  say,  smaller  AC  granules  will  work  better  &  faster.
 
 For  e.g  .  If  you  let  the  water  pass  over  a  1"  AC  bed  @  1000lph  as  against  300lph  through  3"  AC  bed,  the  latter  is  more  efficient.
 
 It's  best  placed  after  the  last  filtration  stage  -  that's  after  fine  filter  floss.  This  way  you  will  get  optimum  performance.  If  there  are  bypasses,  it  will  take  longer.
 
 I  hope  you  get  what  I'm  trying  to  explain  Smile.  It  would  be  impossible  to  calculate  unless  we  have  test  kits  &  know  what  medication  you  are  trying  to  get  rid  off.  Likewise,  it's  impossible  to  tell  when  the  AC  is  rendered  useless  &  can  cause  more  harm  than  benefit  by  its  use.  At  this  point  it  starts  leaching  out  adsorbed  substances  /  chemicals.
 
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DJ_Rocky
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PostPosted: Tue Apr 15, 2008 11:43 pm Post subject: Re: Help With Activated Carbon Reply with quote

                                                   
Quote:                
Rocky,  I  think  5-10  days  is  a  bit  too  long,  especially  when  it's  primarily  used  for  removal  of  medication!                  
I  know,  Deepak.
 
 I  said  this  because,  he  is  going  to  use  800  L/H  internal  power  filter.  Total  AC  is  200  grms  &  his  tank  is  110  gal,  now  dont  you  think  it  will  take  atleast  4-5  days.
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neel12345
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PostPosted: Wed Apr 16, 2008 12:38 pm Post subject: Re: Help With Activated Carbon Reply with quote

 Just  a  correction  to  Rocky's  post,  I  am  going  to  use  a  900l/h  pump   ROFL  .13  hours  have  past  but  water  has  still  not  crystal  cleared  (?).  Drinking
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Deepak_Brid
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PostPosted: Wed Apr 16, 2008 1:32 pm Post subject: Re: Help With Activated Carbon Reply with quote

                                                   
DJ_Rocky  wrote  (View  Post):                
 I  said  this  because,  he  is  going  to  use  800  L/H  internal  power  filter.  Total  AC  is  200  grms  &  his  tank  is  110  gal,  now  dont  you  think  it  will  take  atleast  4-5  days.                

 
 
                                                 
Aquadeep  wrote  (View  Post):                

 
 The  Adsorption  depends  on  depth  of  the  Activated  Carbon  (AC)  bed,  granule  size  &  the  flow  rate.
 
 It  would  be  impossible  to  calculate  unless  we  have  test  kits  &  know  what  medication  you  are  trying  to  get  rid  off.
               

 
 Having  said  this,  unless  I'm  trying  to  get  rid  of  something  that  has  color,  like  Methylene  blue,  it  would  be  difficult  to  point  if  the  AC  has  done  its  job.  So  I'll  leave  it  at  this.
 
 Neel,  you  cannot  achieve  Crystal  Clear  water  by  just  adding  in  AC  as  a  filter  media.  Its  intended  use  is  not  for  trapping  suspended  particulate  matter  (visible),  it  can  "Adsorb"  organic  chemicals  (responsible  for  taste,  odor,  color)  &  along  with  other  stuff  (pls.  Google)  at  molecular  level.  
 
 To  achieve  crystal  clear  water  you  need  to  have  a  various  filtration  media  (Coarse  wadding  >  Medium  Coarse  wadding  >  Ceramic  Rings/Lava  rock/Biological  Media  >  Fine  filter  floss)  so  that  the  particles  are  trapped  at  each  stage  more  efficiently.  I  know  this  is  a  bit  difficult  to  achieve  with  Internal  Power  filter,  but  you  can  still  get  very  good  results  with  few  of  these  models  that  have  good  sponge  Media.  The  other  factor  you  need  to  look  at  is  "Media  bypass",  if  not  Nil  it  has  to  be  Minimal  to  get  good  results.
 
 I’ve  personally  never  required  using  AC.  I  don’t  use  it  for  the  fact  that  I  don't  have  the  setup  to  test  the  results  &  secondly  on  planted  Aquariums  it’s  not  recommended.  Chemistry  experts  may  please  comment  Smile
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neel12345
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PostPosted: Wed Apr 16, 2008 5:47 pm Post subject: Re: Help With Activated Carbon Reply with quote

 @  Aquadeep  :  My  filter  is  already  configured  like  you  said.  You  may  wonder  how  an  internal  filter  can  be  configured  like  that,  but  my  filter  is  actually  connected  to  a  "top  filter"(also  known  as  overhead  filter).  The  filter  floss  and  AC  are  present  there.  And  for  the  coarse  media,  I  have  used  the  normal  sponge  which  comes  with  the  filter,  it  kind'a  works  like  a  pre  filter.  My  water  has  taken  the  previous  whitish  color  after  the  introduction  of  AC.   Clapping
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PostPosted: Wed Apr 16, 2008 6:02 pm Post subject: Re: Help With Activated Carbon Reply with quote

 "...you  cannot  achieve  Crystal  Clear  water  by  just  adding  in  AC  as  a  filter  media..."  Deepak  is  right  here.  Activated  charcoal  will  absorb  the  dissolved  chemicals  like  medicines  and  some  coloring  matter,  perhaps  tannins  too  so  the  water  does  become  clearer  than  before.  On  the  other  hand  it  is  of  no  use  in  removing  suspended  matter.  For  that  you  need  a  very  fine  filter  -  diatom  filters  are  used  and  the  term  is  "water  polishing".
 
 For  truly  crystal  clear  water  a  combination  for  activated  charcoal  with  diatom  filter  is  used.  Often  combined  with  a  camera  and  internet  connection  <grin>.
 
 I  think  you  should  remove  the  activated  charcoal  once  you  achieve  the  water  you  desire.
 
 deepesh
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neel12345
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PostPosted: Wed Apr 16, 2008 6:08 pm Post subject: Re: Help With Activated Carbon Reply with quote

 But  most  website  on  the  internet  mention  that  AC  bring  crystal  clear  water.
 
 I  have  a  problem.  My  tank  has  good  filtration  along  with  good  filtration  media(nylon  sponge  ->  True  Sponge  ->  Filter  Floss  ->  AC).
 
 But  my  tank  water  is  cloudy  for  months.  So  what  is  the  problem  ?  If  AC  too  can't  clear  the  water,  what  will  I  do  ???
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PostPosted: Wed Apr 16, 2008 6:17 pm Post subject: Re: Help With Activated Carbon Reply with quote

 Neel,
 
 
                                                 
Quote:                
But  my  tank  water  is  cloudy  for  months.  So  what  is  the  problem  ?  If  AC  too  can't  clear  the  water,  what  will  I  do  ???                
Just  wait  for  few  days  &  see.
 
 BTW,  Where  are  you  using  AC,  in  top  filter  chamber  or  in  internal  power  filter's  cannister.  Whats  the  quantity?  Full  pack  or  ..???
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neel12345
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PostPosted: Wed Apr 16, 2008 6:26 pm Post subject: Re: Help With Activated Carbon Reply with quote

 I  am  using  AC  in  the  top  filter  chamber.  [Bodyguard  is  giving  problems].I  am  using  the  AC  from  PRODAC.  I  am  using  only  one  bag.Is  the  quantity  ok  ?  Tank  vol  is  110  us  gal.
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