Made available in DSpace on 2014-12-17T14:57:42Z (GMT). No. of bitstreams: 1 KesiaKOSS.pdf: 3539390 bytes, checksum: 726018768b080de46ac5a1e64a59a8c8 (MD5) Previous issue date: 2007-12-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The great diversity of the textile industries activities causes the formation of wastewaters with high complex characteristics during the productive process, according to the industrial process used. The principal aim of the present work is the characterization of the wastewater from the textile industry that process the indigo, located in the Industrial District of Natal-RN, to know the contaminante load of each stage of the process and the framing of the wastewater with the standards of act of receiving of the System of Treatment of Wastewater of the Industrial District of Natal-RN SITEL-DIN, operated for the Company of Waters and Sewers of the RN CAERN. It was analyzed the following properties and pollutants agents: temperature; pH; alcalinity; color; COD (Chemical Oxygen Demand); total and suspended solids; heavy metals, thermotolerants coliformes, turbidity, dissolved oxygen and electrical conductivity. As conclusion it is distinguished that the wastewater did not get resulted satisfactory, according to comparisons with other sources, in only three parameters: turbidity, dissolved oxygen and electrical conductivity, however none of these parameters is criteria of acts of receiving of the SITEL-DIN,therefore the wastewater if finds inside of normality. After the analysis of the obtained results it was verified that SITEL-DIN is indispensable for completing the wastewater treatment / A grande diversidade das atividades industriais t?xteis ocasiona, durante o processo produtivo, a gera??o de efluentes com caracter?sticas bastante complexas, variando de acordo com o tipo de processo industrial utilizado. O presente trabalho tem como objetivo principal a caracteriza??o do efluente l?quido de uma ind?stria de beneficiamento do ?ndigo t?xtil, localizada no Distrito Industrial de Natal-RN, para conhecermos a carga contaminante de cada etapa do processo e o enquadramento do efluente final com os padr?es de recebimento do Sistema de Tratamento de Efluentes L?quidos do Distrito Industrial de Natal SITEL-DIN, operado pela Companhia de ?guas e Esgotos do RN CAERN. Analisou-se as seguintes propriedades e agentes poluentes: temperatura, pH, alcalinidade, cor, DQO, s?lidos totais, s?lidos suspensos totais, metais pesados, coliformes termotolerantes, turbidez, oxig?nio dissolvido e condutividade el?trica. Como conclus?o destaca-se que o efluente final n?o obteve resultados satisfat?rios, segundo compara??es com outras fontes, em apenas tr?s par?metros: turbidez, oxig?nio dissolvido e Condutividade el?trica, por?m nenhum desses par?metros s?o crit?rios de recebimentos do SITEL-DIN, portanto o efluente final se encontra dentro da normalidade. Ap?s a an?lise dos resultados observamos ser indispens?vel ? exist?ncia do SITEL-DIN para tratamento final dos efluentes da ind?stria