Modeling convective drying of wet cake

Tao, Tao; Peng, Xiaofeng; Su, Ay; Lee, Dong Hoon; Mujumdar, Arun S.

doi:10.1016/j.jcice.2007.12.010

Cited by 17 publications

(4 citation statements)

References 24 publications

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“…Tao et al [133][134][135][136] studied the characteristics of drying wastewater sludge. They did so by considering the morphological changes in a drying cake using an X-ray microcomputerized tomography (micro-CT) scanner.…”

Section: X-ray Tomographymentioning

confidence: 99%

The Application of Image Acquisition and Analysis Techniques to the Field of Drying

Qian

2016

Food Eng Rev

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Many changes occur in the structure and properties of a test material during drying as a consequence of moisture evaporation. The use of image acquisition and analysis techniques is proposed here as a potential method of obtaining a better understanding of the different phenomena that can happen during drying. Such techniques can quantify the morphological, textural, and color features of materials and the changes that occur in them. The techniques are convenient to use, accurate, and facilitate rapid measurement. Accordingly, the use of image acquisition and analysis techniques continues to attract considerable research interest in the field of drying. Many such techniques have been applied in this field: scanning electron microscopy (SEM), charge-coupled device (CCD) photography, neutron radiography (NR), magnetic resonance imaging (MRI), X-ray tomography, and so forth. Each technique has its own characteristics and specific applications. SEM is employed to investigate the morphological structure and pore distribution of a sample during drying in the form of magnified 2D images. A computer vision system typically uses two portable CCD cameras to provide 2D top-and side-view images of the sample. These can be used for online monitoring of the change in shape and color and any crack development in the sample during drying. NR and MRI are used for determination of the moisture profiles inside the sample during drying. In addition, MRI can be used to characterize the pore distribution in combination with other technologies. X-ray tomography provides 2D cross sections and 3D tomographic reconstructions of the sample, which can be used to elucidate the volume, crack development, surface area, porosity, and moisture profiles of the sample during drying. Overall, of all these various image acquisition and analysis techniques, X-ray tomography is considered to be the one that has the most promising future in the field of drying.

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Section: X-ray Tomographymentioning

confidence: 99%

The Application of Image Acquisition and Analysis Techniques to the Field of Drying

Qian

2016

Food Eng Rev

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“…Chemical engineering technology has been penetrating all fields of modern biotechnology, especially nanotechnology, pharmacoinformatics, membrane technology, and computer-aided drug design (Chen, 2007(Chen, , 2008aChen et al, 2008a,b;Chu et al, 2007;Lin et al, 2007a,b;Liou et al, 2008;Liu and Chen, 2007;Tao et al, 2008;Ting et al, 2008;Wang and Liu, 2008;Wu et al, 2007Wu et al, , 2008Yang et al, 2008;You et al, 2008;Zhou et al, 2008). In this study, the traditional Chinese herb, magnolol, was modified by different acyl chain lengths liposome.…”

Section: Introductionmentioning

confidence: 98%

Magnolol encapsulated by different acyl chain length of liposomes on inhibiting proliferation of smooth muscle cells

Chen

2009

Journal of the Taiwan Institute of Chemical Engineers

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“…[1,[6][7][8] Important factors affecting the performance of the drying process, including relative humidity, drying temperature, air velocity, formation of crusts, and sludge moisture content, have been well studied and reported in previous research. [8][9][10] However, although drying of residual sludge is a current environmental problem, it had not been well defined in scientific literature and remains only empirical. [11,12] In addition, sludge type and organic composition and the effects of commonly used chemicals in sludge dewatering process on sludge drying potential (SDP) have not been investigated or are not accounted for in currently developed models.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Drying Potential of Different Sludge Types: Effect of Sludge Organic Content and Commonly Used Chemical Additives

Tunçal

2010

Drying Technology

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Drying of residual treatment sludge is one of prerequisites in final disposal of this hazardous material. In this study, sludge drying potential (SDP) of different sludge types (DST) and the effect of organic content and commonly used chemical additives, including polyelectrolyte and lime, on SDP were investigated in a full-scale municipal wastewater treatment plant (WWTP). Freshly collected sludge samples were used in all experiments, which were conducted in onsite laboratory of sludge treatment facility. Studied sludge types were composed of raw biological sludge (RBS), raw primary sludge (RPS), mixed sludge (MS), dewatered sludge (DS), and limed sludge (LS). Halogen radiation was used for sludge drying. Organic content of sludge was represented by total organic carbon (TOC), dissolved organic carbon (DOC), and lost on ignition (LOI) parameters. Relations and interactions among the SDR(s) of DST(s) were statistically determined using independent samples ttest. The effect of organic content and chemicals additives on SDP was also statistically analyzed using linear regression model. Results of the study imply that each surveyed sludge type had a different SDP. Furthermore, organic composition of sludge and chemical additives had a significant impact on SDP.

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Modeling convective drying of wet cake

Cited by 17 publications

References 24 publications

The Application of Image Acquisition and Analysis Techniques to the Field of Drying

The Application of Image Acquisition and Analysis Techniques to the Field of Drying

Magnolol encapsulated by different acyl chain length of liposomes on inhibiting proliferation of smooth muscle cells

Evaluating Drying Potential of Different Sludge Types: Effect of Sludge Organic Content and Commonly Used Chemical Additives

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