Lecture 15 Organic Pollutants PDF

Microorganisms & Organic Pollutants CHAPTER 17 11/18/2024  Exam 2 Graduate Students Undergraduate Students Mean 94% Mean 6...

Microorganisms & Organic Pollutants CHAPTER 17 11/18/2024  Exam 2 Graduate Students Undergraduate Students Mean 94% Mean 67% Range: 102 – 84% Range: 98 – 36% 7 12 # of students with grade # of students with grade 6 10 5 8 4 6 3 4 2 2 1 0 0 A A B C D F  Current Grades Graduate Students Undergraduate Students 9 12 # of students with grade # of students with grade 8 10 7 6 8 5 6 4 3 4 2 2 1 0 0 A B C D F A B C D F What is biodegradation?  The breakdown of organic contaminants that occurs due to microbial activity  The pollutant is considered a microbial food source and referred to as a “substrate”  Biodegradation is a series of steps or pathways that lead to oxidation of the parent compound Mineralization of an organic compound Degradation can occur in aerobic or anaerobic environments with the only difference being the terminal electron acceptor (oxygen or something else)  Example to right is an example of ingredients needed for degradation of ANY compound assuming the microbe has the right suite of enzymes to break down a substrate Which class of hydrocarbons do you think will be broken down more readily? Look for examples of these and discuss why one group is easier to degrade than the other and by whom! At-home Assignment Read through this article uploaded on Canvas Answer a series of questions and prompts Due a week from today (11/25) by 11:59pm