Water Sources Diagram and Its Applications

Calixto, Ewerton Emmanuel da Silva; Pessoa, Fernando; Mirre, Reinaldo Coelho; Francisco, Flávio S.; Queiroz, Eduardo M.

doi:10.3390/pr8030313

Cited by 9 publications

(5 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this work, the source-to-sink allocation strategy is to fulfil all the contaminant limits for every sink as much as possible. Different approaches such as concentration potential, 28 water source diagram, 29 or mathematical programing approach can be used to determine the individual source-to-sink allocation first, and then the CCs can be drawn to determine the number of headers, the flow rates, and the concentrations. The solutions obtained may differ for each approach.…”

Section: Conclusion and Direction For Future Workmentioning

confidence: 99%

Internal and Total Site Water Network Design with Water Mains Using Pinch-Based and Optimization Approaches

Chin

Jia

Varbanov

2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

This work addresses the internal and Total Site Water Network design with water mains. A Material Recovery Pinch Diagram is used for freshwater targeting and a Water Integration Network design with a water main framework, and a mathematical model is formulated for total cost optimization. The Pinch-based method can target an optimum number of water mains, flow rates, and concentrations in the water mains, which can achieve the identified freshwater target. The proposed method can be used for both single and multiple contaminants and applied on both process and total site scales. Two case studies are used to illustrate the application procedure of the proposed method for single- and multiple-contaminant cases. The case study results showed that the optimum number of water mains is three in both single-contaminant and multiple-contaminant Total Site Water Network designs (excluding freshwater and wastewater mains). In the single-contaminant case, the water network of internal integration with three water mains can achieve a total annual cost reduction of 82% compared to direct Water Integration and a total annual cost of 42% in the multiple-contaminant case. The proposed method is beneficial as it provides a graphical interface for the water main targeting and design, and the mathematical optimization enables the selection of optimum options with a minimum cost. To pursue a more accurate design, water piping cost based on real plant locations should be incorporated in future studies.

show abstract

Section: Conclusion and Direction For Future Workmentioning

confidence: 99%

Internal and Total Site Water Network Design with Water Mains Using Pinch-Based and Optimization Approaches

Chin

Jia

Varbanov

2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Com o objetivo do aproveitamento da praticidade a aplicabilidade dos métodos algorítmicos-heurísticos, sem negligenciar a robustez e precisão das estratégias de programação matemática, a abordagem proposta neste trabalho mostra que a combinação de ambos os métodos pode ser o caminho para a obtenção de resultados mais confiáveis por intermédio de uma metodologia prática e de simples entendimento tanto pela indústria, quanto pela academia. Este artigo propõe o uso do método DFA (CALIXTO et al, 2020;GOMES et al, 2013) restritivo em termos de concentração) dentre todos os contaminantes disponíveis. Por este motivo, em alguns casos, ocorrem violações nas concentrações-limite (máximo e mínimo) dos contaminantes em uma ou mais operações na rede gerada.…”

Section: Introductionunclassified

Abordagem Híbrida em Redes de Água TOTAL SITE / Hybrid Approach in Total Site Water Networks

Calixto¹,

Pessoa²,

Mirre³

2021

BJDV

Self Cite

View full text Add to dashboard Cite

As vantagens no uso de abordagens de otimização ou de programação matemática com o uso de superestruturas voltadas para a síntese de redes de água em plantas industriais são de amplo conhecimento, as quais podem ser mencionadas: (1) capacidade de lidar com um grande número de alternativas estruturais e operacionais, simultaneamente, (2) possibilidade de automatização do procedimento de síntese da rede em um nível superior e (3) habilidade de lidar de maneira eficiente com diversas situações, como restrições de correntes do processo etc. No entanto, esta abordagem não elimina as não linearidades que são inerentes aos sistemas e a transparência e visualização do procedimento de síntese é praticamente perdida. Este artigo apresenta uma abordagem sistemática que combina a metodologia do Diagrama de Fontes de Água (DFA) com um procedimento de programação matemática para o reúso de água TOTAL SITE em plantas industriais. Os resultados obtidos mostram que a abordagem híbrida é extremamente útil para o entendimento geral do problema e para a determinação de um melhor resultado.

show abstract

“…The development of methodologies for the optimization of water use in pulp and papermaking processes represents an effective mechanism for environmental management and water sustainability, whose consumption can reach 700,000 L of water (MIERZWA;HESPANHOL, 2005). An important tool of Process Engineering is the Wastewater Sources Diagram (WWSD) method (DELGADO et al, 2009;MOREIRA et al, 2015), based on the algorithmic-heuristic procedure called the Water Sources Diagram (WSD) (CALIXTO et al, 2020;GOMES et al, 2007;2013). This type of approach uses the concept of transfer of contaminant species from a process stream to an aqueous stream, in an operation that uses water as a mass transfer agent.…”

Section: Introductionmentioning

confidence: 99%

Application of an integrated methodology for the synthesis of water networks and wastewater treatment in the pulp and paper industry / Aplicação de uma metodologia integrada para síntese de redes de água e tratamento de efluentes na indústria de papel e celulose

Mascarenhas¹,

Mirre²,

Yokoyama³

2021

BJDV

Self Cite

View full text Add to dashboard Cite

The increase in the costs of water and wastewater treatment makes it relevant to develop tools that allow the efficient use of water in the industry, aiming at reduce costs and respecting the disposal limits imposed by the legislation. Thus, the objective of this work is to apply an integrated methodology for the synthesis and analysis of water networks and industrial wastewaters, combining the Wastewater Sources Diagram (WWSD) method with the results of the Water Sources Diagram (WSD) to the data representative of the pulp and paper industry. A case study considering the relevant contaminants present in the wastewaters from this process was carried out. The wastewater treatment network generated with the WWSD reduced the need for wastewater treatment by 35.20%, allowing lower costs and environmental impacts.

show abstract

Water Sources Diagram and Its Applications

Cited by 9 publications

References 19 publications

Internal and Total Site Water Network Design with Water Mains Using Pinch-Based and Optimization Approaches

Internal and Total Site Water Network Design with Water Mains Using Pinch-Based and Optimization Approaches

Abordagem Híbrida em Redes de Água TOTAL SITE / Hybrid Approach in Total Site Water Networks

Application of an integrated methodology for the synthesis of water networks and wastewater treatment in the pulp and paper industry / Aplicação de uma metodologia integrada para síntese de redes de água e tratamento de efluentes na indústria de papel e celulose

Contact Info

Product

Resources

About