Scaling behaviors of unconditioned and conditioned water treatment residuals (WTRs) based on rheological and microscopic characterization
Scaling behaviors of unconditioned and conditioned water treatment residuals (WTRs) based on rheological and microscopic characterization
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基于流变学和微观表征的未调节和调节水处理残留物 (WTR) 的结垢行为
DOI：
10.1016/j.colsurfa.2012.03.043
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发表时间：
2012-05
期刊：
影响因子：
--
通讯作者：
王毅力
中科院分区：
文献类型：
--
作者：
王毅力
The evolutions of limiting viscosity (η∞), yield stress (τy), cohesion energy of WTR networks (Ec), storage modulus (G′), or critical strain (γc) for linear viscoelastic (LVE) range with the TSS content of raw water treatment residuals (WTRs) can be properly described by a power-law relationship. For conditioned WTRs, a power-law dependence of η∞, G′, τy, or critical strain γcfor LVE range on the TSS content was observed. A scaling theory was developed to describe the relationships between τyand Ecof WTR networks with particle concentration Φ using fractal geometry. Then the weak-link regime was found in the raw and conditioned WTR flocs/aggregates matrix, and the corresponding mass fractal dimensions (Df) were 1.81 and 2.62 as derived from lgη∞–lgTSS relation, while were 2.69 and 2.66 from double-logarithm plots of G′ against TSS content. Microscopic image analysis revealed that the conditioned WTRs present boundary/surface and mass fractal properties, and the Dfvalues were approximate to those determined from the rheological tests. The SAS rheological tests indicated that polymer conditioning at optimum dosage did not increase the porosity of WTR flocs/aggregates.
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影响因子：
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作者：
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DOI：
10.1016/0166-6622(90)80139-u
发表时间：
1990-11-23
期刊：
COLLOIDS AND SURFACES
影响因子：
--
作者：
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通讯作者：
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