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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Pagnin, Sérgio Santiago, Vânia M. J. Dos Santos, Vera Lúcia Veiga, Andréa Azevedo Mendonça, Rafael Silva Alves, Andrea Lima |
| Description | Author Affiliation: Dos Santos VL ( Microbiology Department, Biological Sciences Institute, Universidade Federal de Minas Gerais, C.P. 486, Belo Horizonte, MG, 31270-901, Brazil, verabio@gmail.com.) |
| Abstract | The study was planned to quantify the distribution of bacteria between bulk water and biofilm formed on different materials in an industrial scale cooling tower system of an oil refinery operating with clarified and chlorinated freshwater (CCW) or chlorinated tertiary effluent (TRW) as makeup water. The sessile and planktonic heterotrophic bacteria and Pseudomonas aeruginosa densities were significantly higher in the cooling tower supplied with clarified and chlorinated freshwater (CTCW) (p < 0.05). In the two towers, the biofilm density was higher on the surface of glass slides and stainless steel coupons than on the surface of carbon steel coupons. The average corrosion rates of carbon steel coupons (0.4-0.8 millimeters per year (mpy)) and densities of sessile (12-1.47 × 10(3) colony-forming unit (CFU) cm(-1)) and planktonic (0-2.36 × 10(3) CFU mL(-1)) microbiota remained below of the maximum values of reference used by water treatment companies as indicative of efficient microbial control. These data indicate that the strategies of the water treatment station (WTS) (free chlorine) and industrial wastewater treatment station (IWTS) followed by reverse electrodialysis system (RES) (free chlorine plus chloramine) were effective for the microbiological control of the two makeup water sources. |
| ISSN | 09441344 |
| Issue Number | 4 |
| Volume Number | 22 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2015-02-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Waste Disposal, Fluid Methods Waste Water Microbiology Bacterial Load Biofilms Chloramines Chlorine Corrosion Disinfectants Extraction And Processing Industry Glass Petroleum Plankton Recycling Stainless Steel Water Microbiology Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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