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- W4281568757 endingPage "107984" @default.
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- W4281568757 abstract "A combined model (pore-blocking/shrinking-cake filtration) was established based on the Darcy’s law, Hagen-Poiseuille equation and classic blocking law to study the fouling behavior of a 0.1 µm PAN membrane fouled with the extracellular polymer substance model solution (bovine serum albumin (BSA), sodium alginate (SA) and humic acid (HA)) under different operating conditions in the constant flux cross-flow filtration process. Results showed that the model predictions had good agreements with experimental data not only for single component solution (BSA, SA and HA), but also for the binary mixtures (BSA+SA, BSA+HA and SA+HA), ternary mixtures (BSA+SA+HA) and other membranes (0.1 µm PES and PVDF) (R2 ≥ 0.874). The dominant fouling mechanism is pore-blocking/shrinking at lower concentration, lower flux, or higher velocity in the whole stage. In contrast, the dominant fouling mechanism is pore-blocking/shrinking-cake formation in the first stage while it is cake formation in the second stage at a higher concentration, higher flux, or lower velocity. Meanwhile, the trans-membrane pressure (P) increased rapidly in the first stage for both situations while P kept constant for the first situation and P increased slowly for the second situation in the second stage. Furthermore, transition point and time from combined mechanism to individual mechanism were determined. This model can provide guides for industrial backwashing processes." @default.
- W4281568757 created "2022-05-27" @default.
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- W4281568757 date "2022-06-01" @default.
- W4281568757 modified "2023-09-29" @default.
- W4281568757 title "A model describing the pressure drops across the membrane and cake layers for constant flux cross-flow microfiltration process" @default.
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- W4281568757 doi "https://doi.org/10.1016/j.jece.2022.107984" @default.
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