Study of the influence of water quality in the sustainable production of recycled board: a comparative analysis
The paper industry ranks as one of the top consumers of energy and natural resources among industrial sectors. Traditional paper manufacturing needed substantial amounts of water and energy which resulted in costly operations and serious environmental impacts especially from process water effluents....
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/439575 |
| Acceso en línea: | https://hdl.handle.net/2117/439575 |
| Access Level: | acceso abierto |
| Palabra clave: | Paperboard Papermaking Water quality Cartó Paper -- Fabricació Aigua -- Qualitat Àrees temàtiques de la UPC::Enginyeria paperera::Productes paperers::Cartró |
| Sumario: | The paper industry ranks as one of the top consumers of energy and natural resources among industrial sectors. Traditional paper manufacturing needed substantial amounts of water and energy which resulted in costly operations and serious environmental impacts especially from process water effluents. Professionals in this field are evaluating new methods and integrating them to decrease resource consumption and substantially reduce environmental damage. The main objective of this study is to investigate the influence of water reuse within a closed industrial circuit on the mechanical properties of recycled packaging paper. Rather than simply presenting a comparison between sheets formed with clean treated water and those produced with process water, the research seeks to understand how the accumulation of additives and the progressive alteration of water quality affect critical strength parameters. By focusing on tests such as SCT, CMT, RCT, and CCT, this work aims to shed light on the complex interactions between process water composition and paper performance—revealing, in some cases, surprising outcomes that challenge the assumption that cleaner water always yields better paper. The research conducted through rigorous experimental methods reveals crucial insights about how, despite the bad quality of water, mechanical parameters are not heavily affected; on the contrary, they seem to be even better |
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