INTEGRATED MANAGEMENT OF SANITARY SEWAGE SYSTEMS

• DOI: 10.22533/at.ed.3173342326095

• Palavras-chave: Integrated management, operation of sewage systems, sewage overflow.

• Keywords: Integrated management, operation of sewage systems, sewage overflow.

• Abstract:

  With the implementation of Sanitary Sewage Systems in 2012 and 2013, leveraged mainly by resources from FUNASA and CODEVASF and, consequently, operations starting in 2014 and 2015, the Companhia de Saneamento de Minas Gerais (COPASA MG) faced challenges with the Following the adoption of these Systems, the amount of sewage overflows became a very serious problem, causing negative impacts on society, also affecting the environment and even the final treatment of sewage. In an initial analysis, in the area of operation of COPASA MG's Januária Regional Management (GRJA), problems were identified with inexperienced teams, lack of equipment and inappropriate machinery, which made the execution of maintenance activities less efficient.
  Faced with new challenges, there was a need for more in-depth management of the problems generated by overflows. The implemented practice consisted of a set of structured actions with the creation of a working group in order to identify the best actions that would impact the solution of the problem. The working group was initially composed of Management, the Technical Sector and the Sewage Chemical Technician. After critical analysis meetings using analysis and problem-solving tools such as Control Charts and Cause and Effect Diagrams, several actions were raised and listed in the EAP tool – Project Analytical Structure, among them are employee training, acquisition specific equipment for maintenance, construction of sandboxes, rental of vehicles with specialized implements. Another point of great relevance developed by the group was the creation of a calendar for service with the water jetting vehicle for predictive maintenance. With the implementation of the practice we can observe the evolution of the average annual results in the GRJA of the Sewage Overflow by Network Extension indicator. Furthermore, further results achieved were the reduction of impacts generated by overflows on the environment, improvement of the company's image in the eyes of customers and society, improvement of effluents in sewage stations and consequently the treatment results.