Characterization and coagulation-flocculation performance of a
Results have demonstrated that a bioflocculant of 3.11 g L ?1 was achieved as the maximum yield after 60 h fermentation, with a main backbone of polysaccharides. Maximum arsenite removal efficiency of 99.2% can be reached by adding bioflocculant in two stages: 3 × 10 ?3 % (w/w) in the 1.0 min’s rapid mixing (180 rpm) and 2 × 10 ?3 G o …
Parametric and kinetic studies of activated sludge … – ScienceDirect.The flocculation activity was measured to study the flocculation kinetics under the effects of mixing speed and time. The analysis of a Fourier transform infrared (FTIR) spectrum and microscope images were also performed to elucidate the possible governing flocculation mechanisms of BF01314, in correlation with the dewatering performance results obtained from the batch conditioning and …
Production, Characterization, and Flocculation Mechanism of Cation
Bioflocculants are produced by microorganisms and may exhibit a high rate of flocculation activity. The bioflocculant ETH-2, with high flocculating activity (2849 mg Kaolin particle/mg ETH-2), produced by strain Enterobacter sp. isolated from activated sludge, was systematically investigated with regard to its production, characterization, and …
Coupled effects of bacteria and suspended solids on clogging during.The specific research objectives were as follows: (1) to reveal the different clogging developing laws and mechanisms under the coexistence of SS and bacteria (P.a), (2) to elucidate the interactions between SS and P.a and their combined effects on the clogging of porous media, (3) to reveal P.a migration laws for different SS concentrations, and (4) to compare the characteristics of porous …
Flocculation behavior and mechanism of bioflocculant produced by
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 (0.5 mg L?1) at pH range 4–8. Moreover, IH-7 showed better flocculation performance than polyaluminum chloride (PAC) at a …
Enhancement of coal waste slurry flocculation by CTAB combined with.For this purpose, flocculation processes were evaluated based on flocculation rate and turbidity. Adsorption characteristics of CTAB, surface charge, and tension were measured to reveal the flocculation mechanism. The objective of this work is to provide a basis for coal waste slurry flocculation using a unique combination of bioflocculant and …
Flocculation behavior and mechanism of bioflocculant produced by
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 (0.5 mg L(-1)) at pH range 4-8.
Frontiers | Exploration of Performance Kinetics and Mechanism of Action.This study explores production of an efficient bioflocculant; BF-VB2, by strain Bacillus sp. TERI VB2 and proposes its potential application in wastewater treatment. One milligram of BF-VB2 can effectively flocculate 1980.0 mg ± 5.0 mg of kaolin particles leading to 99.0% ± 0.5% enhancement in flocculation activity and 99.6% ± 1.0% reduction in turbidity; in less time. BF-VB2 when applied …
The utility of Bacillus subtilis as a bioflocculant for fine coal
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 (0.5 mg L ?1) at pH range 4–8.
Simultaneous nitriles degradation and bioflocculant production by.Flocculation behavior and mechanism of bioflocculant produced by Aspergillus flavus Journal of Environmental Management, Volume 150, 2015, pp. 466-471 Ahmad H. Rajab Aljuboori , …, B.S.U. Ibn Abubakar