Coliforms as indicators of efficiency of wastewater treatment plants

被引：0

作者：

Antunes, S. ^{[1
]}

Dionisio, L. ^{[2
]}

Silva, M. C. ^{[1
]}

Valente, M. S. ^{[3
]}

Borrego, J. J. ^{[4
]}

机构：

[1] AQUALAB Clin, Publ Hlth Lab, Albufeira, Portugal

[2] Univ Algarve, Fac Engn Recursos Naturais, P-8055139 Faro, Portugal

[3] Univ Algarve, Centro Ciencias Mar Algarve, P-8055139 Faro, Portugal

[4] Univ Malaga, Fac Ciencias, Dept Microbiol, Malaga 29071, Spain

来源：

EEESD '07: PROCEEDINGS OF THE 3RD IASME/WSEAS INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, ECOSYSTEMS AND SUSTAINABLE DEVELOPMENT | 2007年

关键词：

environment; coliforms; wastewater; faecal pollution; wastewater treatment;

D O I：

暂无

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Indicator microorganisms are used to evaluate the water quality and in wastewaters the most used indicator bacteria are the total and fecal coliforms. The main objective of the present work was to verify if the treated wastewater had sufficient quality, regarding the chosen parameters, to be discharged in receiving natural waters. In the present work 660 residual water samples from 9 sewage treatment plants located in the Algarve region had been analyzed. The performance of these treatment plants in the removal of fecal and total coliforms was studied. The obtained results showed that 78% of the wastewater treatment plants had levels of removal of faecal coliforms up to 90%, what indicates that they had a proper functioning. Plants that showed very low efficiencies of removal were 22%. The last mentioned plants presented a very high number of coliforms, what could be harmful for the public health if these waters will be discharged at the environment in inadequate sites. Faecal coliforms maximum concentration observed in this study in final effluent was 6.7x 10(8).

引用

页码：26 / 29

页数：4

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