Logística reversa dos resíduos líquidos: mensuração dos custos em uma indústria têxtil no estado do Ceará

Abstract

Competitiveness in the global economic market makes companies to develop initiatives that add value to their image and products they manufacture. Initiatives aimed at sustainable development, seeking to decrease, among them, the raw water consumption through reverse logistics process of liquid waste. In this context, this study aims to evaluate the economic impact, by measuring the cost in reverse logistics of liquid waste in a textile factory in the State of Ceará and the costs that the industry got to the third party company which carried out the treatment of these effluents in the 2003-2007 period. For this purpose, a documentary analysis was performed on spreadsheets containing the volume (m3 of water) captured from the Companhia of Gestão of Recursos Hídricos (COGERH) and volume (m3 effluent) that was reused, and semi-structured interviews with the head of maintenance in order to work out descriptive analyzes of the average total cost to the third party company (in R$) and the cost (in R$) per cubic meter of water during the period with and without reuse. The results show that the company during Jan/2007 to Feb/2010 saved on average 51% compared to the total cost (R$) if it had captured from COGERH all the water used in the production process. The second analysis compared the cost (R$)/volume (m3) average, the period Mar/2010 to April/2013 - with and without reuse - highlighting the period when there was reuse, the average cost per m3 of water used cost R$ 6.61 cheaper than the average cost per m3 without reuse.