Based on cleaner production concepts, a method for water use minimization has been developed by the Clean Technology Network of Bahia (TECLIM) at one of the largest industrial complexes in Latin America located in the State of Bahia, Brazil. This method is concerned with an area of secondary interest to the productive sector: the use of water. Based on the best cleaner production principles (CP), nine instruments have been developed during cooperative projects with chemical, petrochemical and copper metallurgical industries. These instruments are described in Part 2 of this paper [1]. The main benefits derived from partnership schemes include: a reduction in water consumption and effluent generation; the development of a techno-operational culture to increase eco-efficiency; and the introduction of conceptual projects to ensure the continuity of the activities in the company after the projects have been completed. The specific consumption of water was reduced by 20% as a consequence of the application of this method in Company A; a specific reduction in the generation of effluents of more than 40% was observed in Company B; a 42% fall in fresh water consumption in Company C; and a 20% decrease in the cost of effluent treatment in Company D. Among the difficulties encountered were the limited time availability of the operators and engineers for the project, the lack of measurement and calibration of available flow meters and the lack of detailed technical data.
The instruments developed by the Clean Technology Network of Bahia (TECLIM) at the Federal University of Bahia (UFBA) (cited in Part 1 of this paper) are presented. Factors regarding water management in industry were examined, on the basis of experience acquired over the period of a decade in cooperative research projects with large industrial process plants located mostly in the Camaçari Petrochemical Complex, Bahia State, Brazil. The main results consist of training about 1700 industry professionals in CP, the identification of about 500 ideas for the rationalization of water use, the presentation and publication of 90 articles in journals, conferences and other academic events, identification of ideas with potential water savings estimated at around 1400 t•h-1 and the reduction of at least 500 t•h-1 in effluents. Other sectors that make use of water, for example public buildings, commercial buildings, homes, shopping centers and airports can adapt and use the TECLIM method as will be exemplified.
753Eng Sanit Ambient | v.21 n. . The BI tool helps to identify the most attractive and sustainable conceptual projects.Keywords: TECLIM ideas bank; front-end loading; use of water in industry;cleaner production; rational use of water.
INTRODUÇÃOA água é apontada como um dos fatores ambientais críticos para as próximas duas décadas (UNEP, 2011). O estresse hídrico, provocado pela retirada excessiva das águas de superfície e dos aquíferos subterrâneos e pela poluição e uso ineficiente dos recursos de água doce
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