Lecture 40 - Sorption Partitioning (cont.) Lecture #40...

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Sorption Partitioning (cont.) ± Lecture #40 ± activated carbon sorption for water treatment ± Freundlich Isotherm ± ICP #35 ± Reading: M: Ch. 3 (CNP: pg. 40-41 ) What you should know ± 1. What adsorbent is used in water and wastewater treatment to remove organics and taste and odor? ± 2. What forms of activated carbon are used in water treatment? Where does it come from? ± 3. What is the Freundlich Isotherm and how does one obtain the isotherm parameters ± 4. What are common reactors configurations for activated carbon treatment of water? Organic in water-soil (sorption analysis) ± sorption isotherms: ± linear isotherm: q e = K ads C H 2 O ± nonlinear isotherm: q e = K f (C H 2 O ) 1/n ± q e g/kg ± sorption parameters obtained from experiments indicating amount sorbed per gram of solid over a range of aqueous phase concentrations Sorption and fraction of organic matter ± Soils have organic matter that has a strong affinity for VOCs. Partitioning between water and organic matter in soil is considered the main driving force for VOC partitioning to soil ± K ads = K oc f oc ± K oc = C oc /C H 2 O ± f oc = fraction of OC Soil Water ↑↓ Organic matter in soil weight fraction of
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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 40 - Sorption Partitioning (cont.) Lecture #40...

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