Dewatering sludge by osmotic technique – A comparative experimental study

Li, Zhong-Sen; Tang, Liansheng; Zhang, Long-Jian; Luo, Zhen-Gui

doi:10.1080/07373937.2018.1454939

Cited by 13 publications

(4 citation statements)

References 26 publications

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“…As shown, AA yield of all samples was above 97%, which indicated that this method can be employed to encapsulate AA with minimal losses as compared to other contemporary techniques (Desai & Park, 2005;Pierucci et al, 2006). The Tg of glassy matrices determines its chemical stability, and physical stability, as well as viscoelastic properties (Hancock & Zografi, 1994;Li et al, 2018).…”

Section: Effect Of the Formulations On The Physical Characteristics Of The Extrudatesmentioning

confidence: 70%

“…Ot is believed that chemical stability of active materials is a direct function of the T g of the dried product (Hatley & Blair, 1999;Li et al, 2018). On our formulation, both water and AA are the potent plasticizers for extruded glassy products, which indicated that water content and AA loading percentage compromised the stability of extruded material.…”

Section: Effect Of the Formulations On The Physical Characteristics Of The Extrudatesmentioning

confidence: 78%

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Ascorbic acid encapsulation in a glassy carbohydrate matrix via hot melt extrusion: Preparation and characterization

et al. 2019

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Section: Effect Of the Formulations On The Physical Characteristics Of The Extrudatesmentioning

confidence: 70%

Section: Effect Of the Formulations On The Physical Characteristics Of The Extrudatesmentioning

confidence: 78%

Ascorbic acid encapsulation in a glassy carbohydrate matrix via hot melt extrusion: Preparation and characterization

et al. 2019

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“…But it was found the final relative weight difference between the actual dried body and the ideal dried body was 1%‐2%. It was speculated that the drying process could only remove free water adhering to the particles in gel network, yet the bound water and adsorbed water need to be decomposed at high temperature to exclude completely …”

Section: Resultsmentioning

confidence: 99%

“…It was speculated that the drying process could only remove free water adhering to the particles in gel network, yet the bound water and adsorbed water need to be decomposed at high temperature to exclude completely. 50 . The other shapes (cylinder and cube) of wet gels also had same phenomenon are shown in Figure 6E-H and Figure 6I-L, respectively.…”

Section: Moisture Diffusion and Drying Kineticsmentioning

confidence: 99%

Viscoelastic behaviors and drying kinetics of different aqueous gelcasting systems for large Nd: YAG laser ceramics rods

Yao

Gao

et al. 2020

J Am Ceram Soc

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Large and nondeforming Nd: YAG ceramic prepared by wet forming is of great importance as gain medium to obtain high‐power solid‐state lasers. However, it is difficult to achieve high‐quality laser ceramics due to insufficiency of the in‐depth understanding of transformation mechanism of gels viscoelasticity and effective control means during drying process. In this work, the rheological behaviors, viscoelastic characteristics, and mechanical strengths in classical acrylamide (AM) and novel Isobam (PIBM) gelcastings were systematically compared to explore the suitable route for the large‐sized 2% Nd: YAG transparent ceramics with high aspect ratio (>10). AM system exhibited a higher complex viscosity (1.82 × 105 Pa s), a shorter gel time (92.9 seconds), and a higher flexural strength (about 24.46 MPa) than PIBM system, and especially its ability to quickly gel was beneficial to the homogeneity of green body. In addition, the order of drying rates of wet gels in four drying media was observed as follows: 55℃ hot air> ethanol> solid desiccant> PEG‐11000 and the moisture diffusion coefficients were calculated and simulated to offer the deep consideration of drying kinetics. The “ethanol + 55℃ hot air” was regarded as an effective composite drying method to eliminate defect and to achieve φ8 mm × 160 mm Nd: YAG ceramic with the in‐line transmittance of 83% @1064 nm. Therefore, not only the cognition of gel process, but also the defects control strategy is proposed. More importantly, this work greatly promotes the application of wet forming and laser ceramics in high‐power lasers.

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