Os resíduos sólidos vêm gerando várias discussões devidos os impactos que causam ao meio ambiente. As Estações de Tratamento de Água (ETA) geram alguns resíduos e dentre eles um resíduo sólido, o lodo formado nos decantadores. Poucas ETA se preocupam em tratar e dispor o lodo adequadamente, até mesmo pela difi culdade em se quantifi car o resíduo. Este estudo teve como objetivo realizar a quantifi cação através de fórmulas pesquisadas por outros autores. Verifi cou-se que a quantidade de resíduo gerada em média é de 1306 m³ ao ano, confi rmando a importância de tratar e dispor o resíduo ambientalmente correta. Palavras-chave: lodo, decantadores, impacto.Solid wastes have generated much discussion due to the impacts they cause to the environment. The water treatment plants (WTP) generate some of them waste and solid waste, the sludge formed in the decanter. Few WTP bother to treat and dispose of the sludge properly, even by the diffi culty in quantifying the residue. This study aimed to perform the quantifi cation using formulas studied by other authors. It was found that the amount of waste generated in average is 1306 m³ per year, confi rming the importance of treating the waste disposal and environmentally friendly

The treatment of water from Anapolis - GO generates as major waste sludge in the decanter after alkalinization, coagulation, flocculation and sedimentation, and washing water after backwashing of the filters themselves. This work was carried out physical-chemical and bacterial waste by means of the methods prescribed in Standard Methods for the Examination of Water and Wastewater. The results indicate the need for treatment and proper disposal of sludge to the decanter, as its parameters do not meet the standards required for discharge of effluents into water bodies. While the characteristics of the wash water filters are close to the standards of water quality class 2, set by the CONAMA Resolution 357. These results demonstrate the need and the importance to waste characterization.

O trabalho consistiu em avaliar a capacidade do sistema de medição de um processo de extrusão de tubos de PVC pela metodologia medidor R & R, apoiado pelas cartas do controle estatístico do processo. No experimento realizado, foi constado que grande parte da variabilidade total do processo estava associada à capacidade de medição dos operadores. Foram identificados através da metodologia quais os operadores apresentavam mais dificuldades, além de hábitos de medição inadequados. Dessa forma sugeriu-se um programa de treinamento em medição direcionado, aferição periódica de equipamentos e avaliação constante da capacidade de medição pela metodologia exposta, visando à redução da variabilidade, como conseqüência a diminuição das perdas. Palavras-chave: Sistemas de Medição, Medidor R&R, Cartas de ControleThe paper consisted of evaluating the capacity of the system of measurement of a drawing process of pipes of PVC for measuring methodology R & R, supported for the charts of the statistical control of the process. In the carried through experiment, he was consisted that great part of the total variability of the process was associated with the capacity of measurement of the operators. The operators had been identified through the methodology which presented more difficulties, beyond inadequate habits of measurement. Of this form a program of training in directed measurement was suggested, periodic equipment gauging and constant evaluation of the capacity of measurement for the displayed methodology, aiming at to the reduction of the variability, as consequence the reduction of the losses.