%0 Journal Article %@ 03014797 %A Aljuboori, A.H.R. %A Idris, A. %A Al-joubory, H.H.R. %A Uemura, Y. %A Ibn Abubakar, B.S.U. %D 2015 %F scholars:6009 %I Academic Press %J Journal of Environmental Management %K activated carbon; calcium; calcium ion; iron; kaolin; magnesium; metal ion; polyaluminum chloride; polymer; potassium; sodium; unclassified drug; fungal polysaccharide; fungal protein, activated carbon; cation; concentration (composition); flocculation; fungus; kaolin; neutralization; pH; polymer, Article; Aspergillus flavus; Bacillus circulans; Bacillus licheniformis; Bacillus subtilis; bioflocculant; Chryseobacterium; Chryseobacterium daeguense; clay; cold exposure; colloid; controlled study; flocculation; Halomonas; nonhuman; pH; Proteus mirabilis; Pseudoalteromonas; salinity; scanning electron microscopy; soil; solid; surface charge; suspended particulate matter; temperature; thermostability; waste water management; water treatment; yeast cell; zeta potential; Aspergillus flavus; chemistry; human; metabolism; water management, Aspergillus flavus, Aspergillus flavus; Flocculation; Fungal Polysaccharides; Fungal Proteins; Humans; Hydrogen-Ion Concentration; Kaolin; Temperature; Water Purification %P 466-471 %R 10.1016/j.jenvman.2014.12.035 %T Flocculation behavior and mechanism of bioflocculant produced by Aspergillus flavus %U https://khub.utp.edu.my/scholars/6009/ %V 150 %X In this study, the flocculation behavior and mechanism of a cation-independent bioflocculant IH-7 produced by Aspergillus flavus were investigated. Results showed 91.6 was the lowest flocculating rate recorded by IH-7 (0.5mgL-1) at pH range 4-8. Moreover, IH-7 showed better flocculation performance than polyaluminum chloride (PAC) at a wide range of flocculant concentration (0.06-25mgL-1), temperature (5-45°C) and salinity (10-60 w/w). The current study found that cation addition did not significantly enhance the flocculating rate and IH-7 is a positively charged bioflocculant. These findings suggest that charge neutralization is the main flocculation mechanism of IH-7 bioflocculant. IH-7 was significantly used to flocculate different types of suspended solids such as activated carbons, kaolin clays, soil solids and yeast cells. © 2014 Elsevier Ltd. %Z cited By 79