Made available in DSpace on 2014-12-17T15:03:35Z (GMT). No. of bitstreams: 1 PedroASF.pdf: 2737700 bytes, checksum: d21b042ed827c2fb029870f975f7fdcf (MD5) Previous issue date: 2007-05-07 / This work intends to develop an approach based through scientific criteria in the operational diagnosis of ponds of stabilization, starting from analyses accomplished in loco and in laboratory of 78 systems of sewer treatment through ponds of stabilization in the State of Rio Grande do Norte. The objectives of the research are: to map, to evaluate and to diagnose the operational acting of the ponds of stabilization of the state of Rio Grande do Norte, through visits in loco and analyses laboratory; to build a SIG, through the map rain, locate the points of releases of sewages of the systems of existent ponds in Rio Grande do Norte, as well as operational data and his/her respective efficiency diagnosis in the removal of BOD and Coliforms Termotolerantes; to evaluate, in real scale, three systems of ponds of stabilization of RN in the operational efficiency for the parameters BOD5, COD, pH, Temperature, OD and Coliforms Termotolerantes. Of 78 ETEs of appraised RN just, 9% or 7 had maximum concepts in what concerns the removal of BOD and Coliforms Termotolerantes and 41% or 32, they had the worst concepts in term of operational efficiency. The flowing concentrations ETEs of RN of BOD and Coliforms were of 410mg/L and 2,50x107UFC/100ml, the predominant configuration is of the type F1+M1+M2, the relationship BOD/COD revealed for the sewer tributary characteristic biodegradable high. For the study of case of 3 ETEs, the best operational efficiencies in decreasing order were: Cidade (Municipal district), it Ro?a (State) and S?o Miguel (SAAE). The removals of final BOD were 51,6mg/L; 108,27mg/L and 62,6mg/L, tends efficiency of 82%; 74% and 81%. In term of coliforms removal in the final effluentes were 1,90x103UFC/100ml; 1,50x104UFC/100ml and 3,10x104UFC/100ml, tends efficiencies of 99,99%; 99,95% and 99,90%. In what it concerns the practice of agricultural re?so of cultures consumed raw, none of 3 ETEs assisted the parameters of the Resolution CONAMA 357/05, for other re?so practices, all assisted the categories B and C of OMS. For release in body receiving ETE Cidade just, they assist the demands of the resolution of CONAMA 357/05, by study of purification solemnity of the receiving body. The maintenance lack and operation; exclusive operator in ETEs and operation knowledge was the contributory factors for the operational fall in appraised ETEs of RN / Este trabalho se prop?e a desenvolver uma abordagem fundamentada atrav?s de crit?rios cient?ficos no diagn?stico operacional de lagoas de estabiliza??o, a partir de an?lises realizadas in loco e em laborat?rio de 78 sistemas de tratamento de esgoto por meio de lagoas de estabiliza??o no Estado do Rio Grande do Norte. Os objetivos da pesquisa s?o: mapear, avaliar e diagnosticar o desempenho operacional das lagoas de estabiliza??o do estado do Rio Grande do Norte, atrav?s de visitas in loco e an?lises laboratoriais; construir um SIG, atrav?s do mapa hidrogr?fico, locar os pontos de lan?amentos de efluentes dos sistemas de lagoas existentes no Rio Grande do Norte, como tamb?m dados operacionais e seu respectivo diagn?stico de efici?ncia na remo??o de DBO e Coliformes Termotolerantes; avaliar, em escala real, tr?s sistemas de lagoas de estabiliza??o do RN na efici?ncia operacional para os par?metros DBO5, DQO, pH, Temperatura, OD e Coliformes Termotolerantes. Das 78 ETEs do RN avaliadas apenas, 7 lagoas correspondente a 9%, tiveram conceito: Bom, que concerne a remo??o de DBO e Coliformes Termotolerantes e 32 lagoas correspondente a 41%, tiveram conceito: Ruim, em termo de efici?ncia operacional, para os par?metros de DBO e Coliformes Termotolerantes. As concentra??es m?dias afluentes as ETEs do RN de DBO e Coliformes foram de 410mg/L e 2,50x107UFC/100ml, a configura??o predominante ? do tipo F1+M1+M2 (Facultativa prim?ria, seguida por duas lagoas de matura??o, uma prim?ria e outra secund?ria) , a rela??o DBO/DQO revelou para o esgoto afluente caracter?sticas biodegrad?veis. Para o estudo de caso, envolvendo as 3 ETEs, uma para cada ?rg?o de gest?o, as melhores efici?ncias operacionais em ordem decrescente foram: Cidade (Munic?pio), Ro?a (Estado) e S?o Miguel (SAAE). As remo??es de DBO final foram 51,6mg/L; 108,27mg/L e 62,6mg/L, tendo efici?ncia de 82%; 74% e 81%, respectivamente. Em termo de remo??o de coliformes nos efluentes das ETEs foram 1,90x103UFC/100ml; 1,50x104UFC/100ml e 3,10x104UFC/100ml, tendo efici?ncias de 99,99%; 99,95% e 99,90%. No que concerne a pr?tica de re?so de culturas consumidas cruas, nenhumas das 3 ETEs atenderam aos par?metros da Resolu??o CONAMA 357/05, para outras pr?ticas de re?so, todas atenderam as categorias B e C da OMS. Para lan?amento em corpo receptor h?drico apenas a ETE Cidade, atende as exig?ncias da resolu??o do CONAMA 357/05, mediante estudo de autodepura??o do corpo receptor. A falta de manuten??o e opera??o; operador exclusivos nas ETEs e conhecimento de opera??o foram os fatores contribuintes para o diminuto quadro de efici?ncia no que concerne a remo??o final de DBO e Coliformes Termotolerantes nas ETEs avaliadas do RN