02569nam a2200229 a 4500001001400000003000700014005001700021008004000038020002200078040000800100100002800108245013100136246012700267260003400394300005900428502009300487504002800580520162500608650004702233650004002280650001902320vtls000045091KUKTEM20251114204422.0100205t2009    my a   f m    000 0 engd  aTHE0003805(Local)  aUMP0 aSiti Aminah Sharif Babu10aBiosorption of zinc (II) from aqueous solution by using dried water hyacinth (Eichhornia crassipes) /cSiti Aminah Sharif Babu3 aBiosorption of zinc (II) from aqueous solution by using dried water hyacinth (Eichhornia crassipes)h[electronic resource]  aKuantan, Pahang :bUMP,c2009  a48 p. :bill. (some col.) ;c30 cm. +e1 computer disc  aProject paper (Bachelor of of Chemical engineering) -- Universiti Malaysia Pahang - 2009  aBibliography : p. 36-403 aThis  paper  shows  a  detailed  study  to  investigate  the  potential  of  water hyacinth as biosorbent, to remove Zinc (II) from aqueous solution and to identify the optimum  condition  for  the  parameter  involved.  Before  the  biosorption  experiment was done, the water hyacinth was first collected at Lake in Pekan, Pahang. Then the water hyacinth was washed to remove dirt and was chopped to separate the aerial and root part. Finally,  the water hyacinth was dried before  it was blended  into a smaller particles  size. There were  four parameter  that have been  studied  in  this paper,  they were  effect  of  biosorbent  dosage,  effect  of  initial  concentration,  effect  of  pH  and   effect  of  time  contact.  It was  found  that  the  optimum  dosage  for  the  biosorbent  at initial metal concentration of 10 mg/L was 0.2 g; the optimum pH was at 5.4 and the optimum  time  contact was  at  90 minutes  for  initial  concentration  5 mg/L  and  210 minutes for  initial concentration 10 mg/L. At  the optimum condition  the removal of zinc was increased as the initial concentration was increased. The biosorption of zinc was  occurred  at  pH  acidic  because  the  pH  dependence  of metal  uptake  could  be related to functional group of the biomass and also to solution chemistry.  The result proved  that  the water  hyacinth was  a  good  biosorbent  to  remove  zinc  from waste water  and  biosorption  can  be  used  to  replace  the  conventional  treatment methods because  it was  low cost, high efficiency of metal removal from dilute solutions and also applicable for industrial. 0aSewagexPurificationxHeavy metals removal 0aSorbentsxAbsorption and adsorption 0aWater hyacinth