Title :
Experimental study of bio-sorption on Pb2+ by Chlorella
Author :
Shu-kui, Zhou ; Ying-jiu, Liu ; Hai-yang, Jang
Author_Institution :
Sch. of Urban Constr., Univ. of South China, Hengyang, China
Abstract :
Bio-sorption of Pb2+ ion from wastewater with Chlorella was investigated in the batch mode. The influence of pH of the solution, biosorbents dose, concentration of ions and contact time on bio-sorption capacity of Pb2+ ions was studied. The studies revealed that Pb2+ ions uptake rate was rather slow, with 75% of the total amount occurring in the first 10min for Chlorella. The optimum pH for bio-sorption of Pb2+ ions was found to be about 5.5. The maximum percent removal was observed at biosorbent dose 1.0g/L; uptake capacity was decreased with increase in concentration of Pb2+. It also showed that factors affecting adsorption from strong to weak were biosorbents dose, pH, contact time and Pb2+ initial concentration; under the optimal conditions, the removal of Pb2+ was 94%.
Keywords :
adsorption; biotechnology; microorganisms; pH; wastewater treatment; Chlorella; adsorption; batch mode; biosorbents dose; biosorption; ion concentration; ion uptake rate; maximum percent removal; wastewater treatment; Extraterrestrial measurements; Ions; Lead; Powders; Temperature measurement; Wastewater; Chlorella; Pb2+; affection factors; bio-sorption;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5774432
