A Viscosity Model for Studying the Physical Properties of Activated Sludge in MBR
An activated sludge and viscous technology, applied in water/sludge/sewage treatment, flow characteristics, sustainable biological treatment, etc., can solve the problem of increasing the amount of calculation, and achieve the effect of simplifying the amount of calculation
Active Publication Date: 2021-10-26
JIANGSU UNSW CTET(YIXING) CO LTD
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And when relevant personnel coupled the activated sludge transport equation in the computational fluid dynamics model, the result resulted in an exponential increase in the amount of calculation
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[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] A viscosity model for studying the physical properties of activated sludge in MBR, including continuous analysis and rheological analysis based on activated sludge, while the continuous analysis based on activated sludge is determined by the sedimentation velocity of sludge particles in activated sludge and the lag time required for the particle velocity of the sludge particles in the activated sludge to reach the liquid flow velocity are composed of two parts, including the following:
[0033] Such as figure 1 As s...
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The invention discloses a viscosity model for studying the physical properties of activated sludge in MBR, including continuous analysis and rheological analysis based on activated sludge, and the continuous analysis based on activated sludge consists of sludge in activated sludge The particle settling velocity and the lag time required for the particle velocity of the sludge particles in the activated sludge to reach the liquid flow rate are composed of two parts. The rheological analysis of the mixed solution sample; the present invention uses the gas-liquid two-phase model to replace the three-phase model, which greatly simplifies the calculation amount, effectively avoids the situation of multi-process and tedious calculation amount in the prior art, and will The solid and liquid two-phase mixture is simplified into a single continuous phase, and then the rheological properties of the solid and liquid two-phase mixture are analyzed, and then a viscosity model suitable for describing the rheological properties of activated sludge suspensions with different concentrations is obtained.
Description
technical field [0001] The invention relates to the technical field of activated sludge models, in particular to a viscosity model used for studying the physical properties of activated sludge in MBR. Background technique [0002] Activated sludge is a general term for microbial groups and their attached organic and inorganic substances. It can be divided into aerobic activated sludge and anaerobic granular activated sludge. Activated sludge is mainly used to treat sewage and wastewater. The activated sludge method is a kind of aerobic treatment method that uses suspended microbial flocs to treat sewage and wastewater. [0003] The rheology of activated sludge plays an important role in mixing, coagulation and aeration in MBR, and also affects the treatment and management of activated sludge. While the concentration of suspended solids in activated sludge in MBR increases with the increase of iron content, other factors such as bound water content and particle size distribu...
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IPC IPC(8): G01N11/00G01N11/12G01N11/14C02F3/12
CPCC02F3/1268G01N11/00G01N11/12G01N11/14Y02W10/10
Inventor 刘雪菲王远大卫·韦特
Owner JIANGSU UNSW CTET(YIXING) CO LTD