1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation prepared by Christine L. Case M I C R O B I O L O G Y a n i n t r o d u c t i o n ninth edition TORTORA  FUNKE  CASE Part C 27 Environmental Microbiology

2. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Algal Blooms  Pollutants (nutrients) may cause algal blooms.  Algal blooms lead to eutrophication. Figure 27.15

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Coliforms  Aerobic or facultatively anaerobic, gram-negative, non– endospore forming rods that ferment lactose to acid plus gas within 48 hours, at 35°C.  Indicator organisms  Used to detect fecal contamination.  MPN:  Most probable number/100 ml of water.

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Multiple-Tube Method Figure 6.18a

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Multiple-Tube Method Figure 6.18b

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Figure 27.19

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings  ONPG causes E. coli to make  -galactosidase.  MUGfluorescent compound  - galactosidase MUG Test Figure 27.16

8. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Municipal Water Treatment Figure 27.17

9. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Municipal Sewage Treatment Figure 27.20

10. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Activated Sludge Figure 27.21

11. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Anaerobic Sludge Digester  CO 2 + 4 H 2  CH 4 + 2 H 2 O  CH 3 COOH  CH 4 + CO 2 Figure 27.24