000			02822nam a2200253 a 4500
001			vtls000031061
003			KUKTEM
005			20251114204353.0
008			080821t2008 my a f m 000 0 eng|d
020			_aTHE0003006(Local)
039		9	_a201905141051 _bzul _c201107132101 _dVLOAD _c200908141511 _dVLOAD _c200908141441 _dVLOAD _y200808210949 _zida84
040			_aUMP
090			_aTD192.72 .D38 2008 rs Thesis
100	0		_aDavid A/L Joseph @ Dave
245	1	4	_aThe effect of ph and biomass concentration on lead (Pb) adsorption by Aspergillus niger from simulated waste water / _cDavid A/L Joseph @ Dave
246	3		_aThe effect of ph and biomass concentration on lead (Pb) adsorption by Aspergillus niger from simulated waste water _h[electronic resource]
260			_aKuantan, Pahang : _bUMP, _c2008
300			_a43 p. : _bill. (some col.) ; _c30 cm. + _e1 computer disc
502			_aProject paper (Bachelor of Chemical Engineering) --- Universiti Malaysia Pahang - 2008
520	3		_aHeavy metals released by a number of industrial processes are major pollutants in marine, ground, industrial and even treated wastewaters. Lead is widely used in many industrial applications such as storage battery manufacturing, printing, pigments, fuels, photographic materials and explosive manufacturing. Lead is highly toxic as its presence in drinking water above the permissible limit (5 ng/mL) causes adverse health effects such as anemia, encephalopathy, hepatitis and nephritic syndrome. Conventionally, the following methods are employed for the removal of heavy metals from effluents such as oxidation and reduction, precipitation, filtration, electrochemical treatment, evaporation. The alternative method is discovered which is biosorption, refers to a physic-chemical binding of metal ions to biomass. It can be considered as an alternative technology for industrial wastewater treatment, The biosorption rate largely depends on parameters such as pH, initial biomass concentration and temperature. In this study, the biosorption of lead (Pb2+) from simulated waste water using Aspergillus niger was investigated. The biosorption process was carried out in a shake flask at different initial pH and biomass concentration. Results from experiment shows, among the different initial pH used, percentage of biosorption was highest is at pH 4.0 (77.99%) and for the experiment conducted at different initial biomass concentration, the highest percent of biosorption was obtained by using 20mg/l (40.58%) biomass. From the results also, it was observed that, the percentage of biosorption is directly proportional to the biomass concentration.Author
650		0	_aBioremediation
650		0	_aLead _xEnvironmental aspects
999			_aVIRTUA40 _c869 _d875
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992