02423nam a2200289 a 4500001001400000003000700014005001700021008004100038020002200079039004200101040000800143090003000151100002900181245011100210260003400321300005900355502009000414504003000504520116300534650001501697650001901712650003201731952012401763952013401887999002502021999008702046vtls000058677KUKTEM20251114204433.0120315t2010    my a   f m    001 0 eng d  aTHE0003848(Local) 9a201905161543bshahy201203151624zida  aUMP  aTP156.A35 N87 2010 rs Bc.0 aNurfani Ekawati Musthafa10aRemoval of acid blue 25 dye by using dried water hyacinth from aqueos solution /cNurfani Ekawati Musthafa  aKuantan, Pahang :bUMP,c2010  axiii, 62  p. :bill. (some col.) ;c30 cm. +e1 CD-ROM  aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2010  aBibliography : p. [42]-453 aWater hyacinth (Eichhornia crassipes) is a free floating aquatic weeds that robustness in its growth used as an adsorbent to remove Acid Blue 25 dye from aqueous solution. The parameters studied include the adsorbent dosage, initial dye concentration, pH, and also contact time in a batch adsorption process at room temperature 21ºC. The results shows the optimum conditions for each parameter studied, adsorbent dosage at 0.60 g, initial concentration 400 mg/L, pH 2 and 100 minutes contact time. The samples after the dye uptake were analyzed by using UV-Vis spectrophotometer. Furthermore, before and after the experiments, FTIR analyses were studied to know the functional groups of the water hyacinth. In addition, the equilibrium data fitted well pseudo-second order kinetics, Langmuir and Freundlich isotherm. The maximum sorption capacities for Langmuir equation were 83.33 mg/g whereas the amount of n for Freundlich is favourable. While for pseudo-second-order kinetics, it has a low error for equilibrium sorption capacity for experimental and calculated values. This study is favourable and economically feasible for the removal of Acid Blue 25. 0aAdsorption 0aWater hyacinth 0aDyes and dyingxDegradation  00104071a10000b10000d2019-09-04l0oTP156.A35 N87 2010 rs Bc.p0000063377r2019-09-04 00:00:00t1w2019-09-04yPSM  00104071a10000b10000d2019-09-04l0oCD 5925 | TP156.A35 N87 2010 rs Bc.p0000063378r2019-09-04 00:00:00t1w2019-09-04yPSM  aVIRTUA40c2025d2031  aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*9992