Search Result of "Narumon W. Harvey"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Lead (Pb2+) Removal from Wastewater by the Cyanobacterium Calothrix marchica)

ผู้เขียน:ImgSuneerat Ruangsomboon, ImgAmnat Chidthaisong, ImgBoosya Bunnag, ImgDuangrat Inthorn, ImgNarumon W. Harvey



Pb2+ removal ability of the living-freshwater cyanobacterium C. marchica was studied in batch experiments. The result showed that adsorption of Pb2+ by C. marchica reached equilibrium within 60 min. The amount of Pb2+ adsorbed (qeq) increased when cyanobacterial age increased. At lower biomass concentration cyanobacterium showed higher qeq than that at high biomass concentration. Elevated temperature increased Pb2+ adsorbed by C. marchica. The Langmuir adsorption isotherm fitted the results better than the Freundlich isotherm and, thus, was more suitable to describe Pb2+ adsorption by C. marchica. C. marchica had Pb2+ binding capacity (qmax) of 74.04 mg g-1, and indicators of adsorption capacity (Kf) of 18.01. Pb2+ removal under light and dark conditions was not significantly different.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 040, Issue 3, Jul 06 - Sep 06, Page 784 - 794 |  PDF |  Page