{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

11-Microbiology_Water_Mar12

Kills remaining microorganisms some are resistant

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: lia C. parvum 25 Brock Biology of Microorganisms, 13th Edi<on. Water quality control •  Impossible to check for all pathogens. Most water- borne pathogens are associated with fecal material. •  Test the water for organisms that are present in large numbers in feces – use these organisms as indicators of fecal pollu<on – if these organisms are present, there is a chance that the water may also contain pathogens. •  Two indicators: –  Coliforms: faculta<ve aerobic, Gram- nega<ve, non spore- forming, rod- shaped bacteria that can ferment lactose with gas forma<on within 48 hours at 35°C. Includes a variety of bacteria not all of intes<nal origin. –  Fecal coliforms: coliforms derived from the intes<nes of warm- blooded animals (can grow at 44.5°C, thermotolerant) •  The presence of fecal coliforms, especially E. coli, indicate fecal contamina<on an...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern