A process-based LCA for selection of low-impact DBPs control strategy for indoor swimming pool operation
| Autor: | Rehan Sadiq, Manuel J. Rodriguez, Roberta Dyck, M. Shahria Alam, Kasun Hewage, Guangji Hu, Anber Rana |
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| Rok vydání: | 2020 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Process (engineering) 020209 energy Strategy and Management 05 social sciences Control (management) TOPSIS 02 engineering and technology Building and Construction Environmental economics Industrial and Manufacturing Engineering Fresh air 050501 criminology 0202 electrical engineering electronic engineering information engineering Environmental science Resource consumption Life-cycle assessment Selection (genetic algorithm) Water use 0505 law General Environmental Science |
| Zdroj: | Journal of Cleaner Production. 270:122372 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2020.122372 |
| Popis: | Disinfection by-products (DBPs) in public indoor swimming pools (ISP) are a major human health risk concern. Various DBPs control strategies have been developed as an integral part of ISP management; however, these strategies are associated with different energy and resource consumption and environmental impacts. In this study, a process-based life cycle assessment (P-LCA) framework is developed for determining the environmental impacts of DBPs control strategies in ISP management. The developed framework requires ISP operation information such as energy, water, and chemical use, and concentration data under each DBPs control strategy as inputs. The ReCipe2016 midpoint method is used to process the inputs and quantify the lifecycle impacts in terms of three categories: energy, water and chemicals. Based on the outputs, the best strategy is selected using the TOPSIS method. The developed framework is applied to an ISP located in Vancouver (Canada) to evaluate seven DBPs control strategies associated with various air circulation rates. The DBPs concentration data were sourced from a previous sampling campaign. The results show that energy use is the main contributor (87–94%) to the total environmental impacts as compared to chemical and water use (6–13%). Among the tested strategies, reduction of fan speed can yield maximum environmental benefits without compromising the DBPs control performance. On the other hand, supply of 100% fresh air at normal fan speeds results in higher environmental impacts compared to a baseline case despite the lower DBPs releases. The proposed P-LCA framework can facilitate pool operators in selecting low impact DBPs control strategies for sustainable ISP management. |
| Databáze: | OpenAIRE |
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