Lecture 43 - Nonhazardous Organic Compounds Lecture#43...

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Nonhazardous Organic Compounds ± Lecture #43 ± review BOD concept ± Wastewater treatment and aeration ± ICP #38 ± Reading: review V: Ch. 8 (pg. 163-173); PS#8 due; PS#9 out What you should know ± 1. How is BOD removed from wastewater? ± 2. What type of reactors are commonly used in BOD treatment processes? ± 3. What reactor concepts and methods can we use to assess the extent of removal of BOD from rivers and lakes? Biochemical Oxygen Demand (BOD) ± Biochemical Oxygen Demand (BOD) ± rate at which organics are consumed is assumed to be first order ± dL t /dt = -kL t (where L t ( mg/L) is the oxygen equivalent of the organics at time, t, and k ( d -1 ) is the first order reaction constant) ± integrating gives first order decay result: ± L t = L 0 exp(-kt) (L 0 , total oxygen equivalent of organics at t = 0 and L t the amount remaining at time t) Biochemical Oxygen Demand (BOD) ± Biochemical Oxygen Demand (BOD) ultimately want amount of oxygen consumed not how much is
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This note was uploaded on 04/17/2008 for the course CEE 260 taught by Professor Kimf.hayes during the Fall '06 term at University of Michigan.

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Lecture 43 - Nonhazardous Organic Compounds Lecture#43...

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