Riscos químicos de um operador de estação de tratamento de águas cinzas

Abstract

The scarcity of water in large urban centers, where increasing demand tends to surpass supply, has been a cause for alarm. An alternative to economy of the input is its reuse that has been stimulated mainly due to the law of water resources. This work points out the main chemical risks of the treatment plant operator in the use of gray water. It is observed that for the installation of a system of reuse of the gray water, besides a double system of water distribution, also a suitable treatment. Although they are less contaminated than black water, to reuse gray water, treatment is necessary to be reused safely. As well as work safety, environmental risks and protective measures and actions in emergency situations .; which include mechanical or accident hazards; physical and chemical properties according to ABNT-NBR 14725, which emphasizes the care they must have for health, biological and ergonomic. The disinfection, together with the physical-chemical treatment are essences, and if to take into consideration when proposing the collection of gray water, following the recommendations of technical norm NBR 8.160. For the most part, this gray water reuse system is operated by janitors or warehouse personnel with little or no technical knowledge and is put at risk for lack of knowledge. This paper points out the chemical risks that the operative can suffer, and measures for such events never happen. Due to the fact that it does not have a regulatory standard, it specifies to reuse gray water, there is no supervision and no charge on who should operate this type of station, however, certain guidelines such as NRs 6, 9, 15, 23, 25 must be followed. and 25 and NBRs 8,160, 14,725 and 13,969. With these guidelines, together with the Material Safety Data Sheets (MSDSs), we will, without a doubt, be able to avoid occupational accidents.