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An integrative membrane coagulation adsorption bioreactor (MCABR) with simultaneous dosing of polyaluminium chloride (PACl, 10mg/L) as the coagulant and powdered activated carbon (PAC, 8mg/L) as the adsorbent into the bioreactor was put forward and investigated for the drinking water treatment from slightly polluted surface water. The MCABR exhibited excellent capacity for the removal of organic matter...
Efficiency of solid/liquid separation is greatly related to floc structure. In this paper, two-dimensional model of diffusion-limited aggregation (DLA) has been used to simulate the fractal structure of floc. Investigation was carried out to examine how characteristic parameters of floc morphology, such as floc radius of gyration, fractal dimension and void ratio, varied with simulation conditions...
The fractal growth characteristics of flocs in flocculation process in water treatment was discussed based on diffusion-limited aggregation (DLA) mechanism. Modern structure characterization technology was employed to evaluate the impact of coagulant dosage and slow stirring speed, etc. on the evolution of floc configuration and structure. Combining macroscopic flocculation effect with microscopic...
The coagulation experiment, with Kaolin and humic acids (nature organics) as objects, aluminum chloride (PAC) as coagulant and hydrated MnO2 as coagulant aid, were accomplished under different conditions. In the experiment, the particle size distribution, turbidity and streaming current (SCD) in water were detected by on-line detector. Then the variation rules of particle size distribution and SCD...
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