Implementing sustainable laundering procedures for textiles in a commercial laundry and thus decreasing wastewater burden |
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| Institution: | 1. Department of Mechanical Engineering, Federal University of Vales do Jequitinhonha and Mucuri, Rodovia MGT 367 Km 583 – N. 5000, Diamatina, MG 39100-000, Brazil;2. Department of Mechanical Engineering, Federal University of Pernambuco, Av. Prof. Moraes Rego, 123, Recife, PE 50670-901, Brazil;3. Federal Institute of Technology, Science and Education of Pernambuco, Av. Prof. Luiz Freire, 500, Recife, PE 50740-540, Brazil;1. Colorado State University, Department of Psychology, United States;2. Colorado State University, Department of Agricultural and Resources Economics, United States;3. South Dakota State University, Department of Electrical and Computer Engineering, United States;4. National Renewable Energy Laboratory, United States |
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| Abstract: | This paper presents a research on how to optimize a laundering program to reduce wastewater burden thus achieving a more sustainable laundering procedure. A green surgical textiles program was investigated and the first step of optimization was performed based on the results of measuring certain parameters in the water taken from individual chambers. The wastewater parameters were reduced after optimization of the program although effluent treatment plants for water reuse remain necessary. An experimental laundering procedure with a high dosage of sodium hypochlorite was also conducted in order to observe a correlation between measured values of active chlorine and conductivity. As an approximate correlation was found this could result in the possibility of incorporating a sensor in the washing machine measuring online the conductivity with the possibility of regulating the dosage of sodium hypochlorite and thus preventing overdosing, which increases the damages of the laundered textiles and the burden of wastewater. |
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