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Instructor Class Description

Time Schedule:

H. David Stensel
CEE 541
Seattle Campus

Biological Treatment Systems

Basic reactions, design principles, current design models, and operational considerations for biological treatment systems used in environmental engineering. Applications include activated sludge design and optimization, fixed film reactors, nitrification, nitrogen removal, phosphorus removal, anaerobic treatment, biomethane production, resource recovery, and toxic organics removal. Prerequisite: CEE 540 and CEE 482 or equivalent.

Class description

Schedule and assignments will by on syllabus on class website

Student learning goals

Objective 1: Understand concepts of the distribution of substrate utilization between that oxidized and that ending up as biomass on a COD basis.

Objective 2: Understand the importance and use of solids retention time (SRT) in biological process design

Objective 4: Be able to perform a mass balance to follow any specific component in a biological suspended growth process under steady state or dynamic conditions

Objective 5: Design activated sludge systems for organics, nitrogen and phosphorus removal with conventional clarifiers or with membrane separation.

Objective 12: Understand the design basis for key fixed film processes and the importance and effect of diffusion limitations in fixed film processes

Objective 13: Design anaerobic digestion and other key anaerobic processes.

General method of instruction

Class lecture and class participation on design methodology Homework assignments Computer modeling

Recommended preparation

CEE540 or equivalent microbiology Basic course in environmental engineering Background in understanding mass balance procedures

Class assignments and grading

REading assignments and preclass Q/A Homework on design methods. BioWin computer software assignment-team project

Pre-class Prep 10% Homework 30% Midterm Exam 30% Final Exam 30%


The information above is intended to be helpful in choosing courses. Because the instructor may further develop his/her plans for this course, its characteristics are subject to change without notice. In most cases, the official course syllabus will be distributed on the first day of class.
Additional Information
Last Update by H. David Stensel
Date: 01/02/2011