Source composite curve for waste reduction

Bandyopadhyay, Santanu

doi:10.1016/j.cej.2006.08.007

Cited by 172 publications

(127 citation statements)

References 27 publications

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“…(33) may be plotted against the pinch quality to obtain the source composite curve Bandyopadhyay, 2006). Through this graphical representation, different engineering insight may be obtained Bandyopadhyay, 2006).…”

Section: Relation With Source Composite Curvementioning

confidence: 99%

“…To demonstrate the relation between the graphical representation of source composite curve Bandyopadhyay, 2006) with the limiting value of the waste generation (30), it has been assumed that the resource quality is the minimum. Total quality load, with respect to the resource quality, generated by the process may be expressed as…”

Section: Relation With Source Composite Curvementioning

confidence: 99%

“…Recently, Bandyopadhyay et al (2006) have introduced a source composite curve-based approach for simultaneously targeting distributed effluent treatment system and the minimum freshwater requirement. Bandyopadhyay (2006) has generalized the concept of source composite curve to reduce waste production for a variety of applications. Shenoy and Bandyopadhyay (2007) have addressed the resource allocation problem for multiple resources.…”

Section: Introductionmentioning

confidence: 99%

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A rigorous targeting algorithm for resource allocation networks

Pillai

Bandyopadhyay

2007

Chemical Engineering Science

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Section: Relation With Source Composite Curvementioning

confidence: 99%

Section: Relation With Source Composite Curvementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A rigorous targeting algorithm for resource allocation networks

Pillai

Bandyopadhyay

2007

Chemical Engineering Science

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“…The above mentioned four methods are the most efficient methods for fixed flow rate operations, and they can be extended to cases of multiple water sources [14][15][16] . The targeting concept is also applicable to process changes [11,17] and threshold problems [18] . The second supplement is on the regeneration target.…”

Section: Introductionmentioning

confidence: 99%

“…El-Halwagi et al [8] and Prakash and Shenoy [9] developed a mass load vs flow rate composite by analogy to the heat integration system. In addition, Agrawal and Shenoy [10] achieved the freshwater target in the concentration vs mass load coordinate; Bandyopadhyay et al [11,12] calculated the wastewater target in the same coordinate. Recently, Pillai and Bandyopadhyay [13] established a simple and more effective algebraic method for wastewater targeting.…”

mentioning

confidence: 99%

Wastewater Minimization in a Chlor-Alkali Complex

Liao¹,

Wang²,

Yang³

2011

Waste Water - Treatment and Reutilization

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IntroductionWater network integration is one of the most efficient technologies for wastewater reduction [1] . During the past two decades, both the water pinch technology and the mathematical programming method have been frequently discussed and widely applied in the industry. The water pinch technology divides the water network integration into two steps: targeting and design. This technology was initiated by Wang and Smith [2] in 1994. They treat the water using operation as a mass transfer unit and use concentration vs mass load coordinate to obtain the minimum freshwater consumption of the whole system. Based on this coordinate system, the targets of wastewater reuse and regeneration reuse are established. The methods of Wang and Smith [2,3] have been well supplemented by many authors in recent years. The first supplement is on the model of the water using operation. It is obvious that not all the water using operations are the mass transfer type. Typical water using units like cooling tower, boiler and reactor are not this kind. Actually, these units are flow rate fixed operations. To treat operations in this category, targeting methods in different coordinates were developed. Dhole et al. [5] obtained the composite curve in concentration vs flow rate coordinate, which has been supplemented by several works [6][7][8][9] . Hallale [6] introduced a water surplus diagram and obtained the real target. El-Halwagi et al. [8] and Prakash and Shenoy [9] developed a mass load vs flow rate composite by analogy to the heat integration system. In addition, Agrawal and Shenoy [10] achieved the freshwater target in the concentration vs mass load coordinate; Bandyopadhyay et al. [11,12] calculated the wastewater target in the same coordinate. Recently, Pillai and Bandyopadhyay [13] established a simple and more effective algebraic method for wastewater targeting. The above mentioned four methods are the most efficient methods for fixed flow rate operations, and they can be extended to cases of multiple water sources [14][15][16] . The targeting concept is also applicable to process changes [11,17] and threshold problems [18] . The second supplement is on the regeneration target. The regeneration has two cases: regeneration reuse and regeneration recycle. For regeneration reuse, Wang and Smith [2] proposed that the regeneration concentration should be at the pinch concentration. Latter, Mann and Liu [19] pointed that the optimum regeneration concentration can be above the pinch. Feng et al. [20] introduced a targeting method for regeneration recycle, which has been extended to the regeneration reuse system [21] and the zero discharge system [22] . On the other hand, the regeneration problem for fixed flow rate problems are more complicated than the fixed mass load problems, because the regeneration flow rate is constrained by www.intechopen.com Waste Water -Treatment and Reutilization 406 water sources. Agrawal and Shenoy [10] adopted the method of Wang and Smith [2] to treat this problem. Bandyopadhyay et al. [23] consid...

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Process Synthesis and Integration

El‐Halwagi

Foo

2014

Kirk-Othmer Encyclopedia of Chemical Technology

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Process synthesis is a key design activity which focuses on the generation of alternatives for creating new processes or retrofitting existing ones. It is closely tied to process integration which is a holistic approach to design and operation which focuses on the unity of the process . This article provides a brief overview of process synthesis and integration. The focus is on key concepts, tools, and applications. The discussion is organized over classes of problems. First, the synthesis of energy systems is discussed with emphasis on the thermal pinch analysis for the conservation of heat through the integration of process hot and cold streams. Next, the material recovery pinch diagram is presented as a basis for reducing the use of fresh resources and the discharge of waste materials through reuse and recycle. Then, the field of process network synthesis is briefly reviewed. Moving to reactive systems, the topics of reaction pathways synthesis, attainable reaction regions, and reactor network synthesis are discussed. The chapter concludes with a discussion of the simultaneous process and molecular design.

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Source composite curve for waste reduction

Cited by 172 publications

References 27 publications

A rigorous targeting algorithm for resource allocation networks

A rigorous targeting algorithm for resource allocation networks

Wastewater Minimization in a Chlor-Alkali Complex

Process Synthesis and Integration

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