Português (Brasil) Use of reuse water as a replacement for water loss in cooling towers

• Autor(a) principal: Marques, Guilherme Ianusckiewicz
• Data de Publicação: 2022
• Outros Autores: Nizzoli Filho, Irio, Santos, Aldo Ramos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/33367
• topic: Sustentabilidade ambiental; Reuso de água; Torre de resfriamento; ETAR.; Environmental sustainability; Water reuse; Cooling tower; WWTP.; Sostenibilidad del medio ambiente; Reutilización de agua; Torre de enfriamiento; EDAR.

The reuse of water is a global necessity due to the growth of population and economic demand. The lack of concern for natural sources of water, climate change, and consumption habits end up causing a decrease in drinking water. World organizations demonstrate this situation, the World Health Organization (WHO), in a report, points out that almost 663 million people in the world live without access to drinking water and also the United Nations (UN), says by 2050, six billion people will have no access either. This situation has led several countries to create alternative water reuse processes, aiming at saving this kind of water for the exclusive purpose of human needs. The objective of this work was to conduct a study showing the reuse of water collected from rainwater, air conditioning systems and also from sinks and showers of a business building and sent to a reuse water treatment plant (WWTP), to be reused later as replacement of water loss in four cooling towers. The structure of the cooling towers and the processes of the WWTP are presented. It demonstrated, through spreadsheets, the experimental data collected from the capture of reuse water, obtained in several areas of the building studied, from January to december 2021. The theoretical study was complemented with the development of mathematical calculations and concluded that there was a capture of reuse water of 10,828 m³/year and a loss of water by the towers of 17,280 m³/year.