000			02141nam a2200265 a 4500
001			vtls000058677
003			KUKTEM
005			20251114204433.0
008			120315t2010 my a f m 001 0 eng d
020			_aTHE0003848(Local)
039		9	_a201905161543 _bshah _y201203151624 _zida
040			_aUMP
090			_aTP156.A35 N87 2010 rs Bc.
100	0		_aNurfani Ekawati Musthafa
245	1	0	_aRemoval of acid blue 25 dye by using dried water hyacinth from aqueos solution / _cNurfani Ekawati Musthafa
260			_aKuantan, Pahang : _bUMP, _c2010
300			_axiii, 62 p. : _bill. (some col.) ; _c30 cm. + _e1 CD-ROM
502			_aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2010
504			_aBibliography : p. [42]-45
520	3		_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.
650		0	_aAdsorption
650		0	_aWater hyacinth
650		0	_aDyes and dying _xDegradation
999			_aVIRTUA40 _c2025 _d2031
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*6502*9992