Thermal Drying Technologies—Cost-Effective Innovation Aided by Mathematical Modeling Approach

Mujumdar, Arun S.; Wu, Zhonghua

doi:10.1080/07373930701812606

Cited by 58 publications

(28 citation statements)

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“…Therefore, for an equal amount of dry matter, the comparative cost will be in the last case 0.24 V/kg, which means a difference of only 0.09 V/kg. Detailed economic analysis of thermal drying technologies can be found in Mujumdar and Zhonghua (2007).…”

Section: Approximation To An Economical Assessmentmentioning

confidence: 99%

Atomized sludges via spray-drying at low temperatures: An alternative to conventional wastewater treatment plants

Cusidó¹,

Cremades²

2012

Journal of Environmental Management

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. b s t r a c tRemoval of sludges from Wastewater Treatment Plants (WWTP) represents a serious worldwide environmental problem for which alternatives other than their simple incineration are investigated. In this work the treatment of raw sludge from urban WWTP by means of a minimization process through spraydrying is analyzed as well as some proposals for revaluating the resulting dry product. Analysis is supported by some experimental results obtained with a laboratory spray dryer. The experimental procedure at laboratory scale is extrapolated to an industrial plant scale. An economic analysis of the proposal in relation to other possible sludge treatments is presented, taking into account in this case the comparison between the costs of the processes of sludge thickening, stabilization and dehydratation and the costs of spray-drying (especially power consumption), minimization of the final waste and reuse options. Finally, an environmental balance of the process is presented. In contrast with the classical treatment line, this alternative allows transforming sludges, i.e., a waste, into a valuable product with several applications.

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Section: Approximation To An Economical Assessmentmentioning

confidence: 99%

Atomized sludges via spray-drying at low temperatures: An alternative to conventional wastewater treatment plants

Cusidó¹,

Cremades²

2012

Journal of Environmental Management

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“…There is adequate literature on these aspects that the reader can access readily. Mujumdar (2007a) and Kudra and Mujumdar (2009) have identified many reasons for the development of new dryers, although a massive number of them are already discussed in the literature. They are:…”

mentioning

confidence: 96%

“…Kudra and Mujumdar (2009) have provided a detailed overview of recent drying technologies. For an in-depth analysis of most conventional dryers the reader us referred to the Mujumdar (2007a), Jaya and Sokhansanj (2007) and a recent review article (Jangam 2011a). In this overview we will not examine conventional dryers in any depth.…”

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confidence: 97%

Recent Developments in Drying Technologies for Foods

Jangam

Mujumdar

2013

Food Engineering Series

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“…However, all new developments and emerging drying technologies must be cost-effective. This is needed to ensure market acceptance as the industry will not accept a new dryer for its novelty [14][15][16] . New technologies are needed principally for one or more of more of the following reasons if the existing technology is deemed inadequate:…”

Section: Recent Advances In Dr Ying Systemsmentioning

confidence: 99%

“…Significant advancement have been made over the past few years which have lead to new developments in drying that are briefly discussed in the following sections. Some general attributes of the recently developed dryers include [14][15][16] . Multiple heat input concurrently or sequentially to match instantaneous (for batch) or local (for continuous) drying kinetics without adverse effect on product quality, e.g.…”

Section: Recent Advances In Dr Ying Systemsmentioning

confidence: 99%