Lectures: Thursdays, Abbotts 315 6:00-9:00 p.m.

Instructor: Professor Weilin Huang e-mail address

Office: 610 Nesbitt weilin.huang@drexel.edu

Office Hours Tuesdays 3:00-4:00 p.m.

Textbook: Water Quality and Treatment. A Handbook of Community Water Supplies. American Water Works Association, 4th Edition (1990).

Prerequisites: ENVR-660

Grading: Midterm Exam 30%

Final Exam 30%

Homework 20%

Project and Presentation 15%

Participation 5%

Course Understand the concepts and theories underlying physical and chemical

Objectives: processes commonly applied for drinking water and wastewater treatment;

Apply the concepts and theories to design and operation of physical and chemical processes for treatment.

Notes: 1) There will be five (5) individual homework assignments during the quarter. Each homework assignment is to be submitted at the beginning of class or on the designated due date. Assignments submitted through e-mail or fax, in photocopied forms will not be accepted. There will be no credit given for late responses to assignments.

2) There will be two equally-weighted close-book exams. If a student must miss an exam or a lecture due to illness or other extenuating circumstance, the instructor must be notified prior to the time of the examination or lecture.

3) All students are required to visit a water treatment plant and/or a wastewater treatment plant during the term. Each student will select a specific physicochemical process as a theme and write a technical paper summarizing the theory, application, and updated technological development of the process. Technical articles published over past five years should be cited. A short oral report (5~10 minutes) will be required. The detailed requirements will be discussed later of the class.

4) Attendance at each lecture is required.

5) Receiving or providing unauthorized assistance on examinations is prohibited, and reporting any violations observed is required. Additionally, the use of homework solutions completed by others (in either this semester or a previous semester) in preparing an assignment is not allowed. You are encouraged to discuss homework assignments with other students, but you must do all of your own work (writing, spreadsheets, graphs, tables, etc.).

Lectures

1. Introduction to Water and Wastewater Treatment Processes (April 1)

1.1 History

1.2 Water Quality Standards (Review)

1.3 Treatment Processes and Classification

1.4 Design Principles

2. Solute Separation Processes (I): Adsorption (April 1)

2.1 PAC and CMFR Design

2.2 GAC and Column Design

Quasi-Steady-State Approach

Mass Transfer Zone

Breakthrough Curve

Intraparticle Diffusion Model

Surface Diffusion Model

Non-Steady-State Approach (Brief)

3. Solute Separation Processes (II): Ion Exchange Process (April 8)

3.1 Introduction

3.2 Ion Exchange Materials and Classifications

3.3 Ion Exchange Reactions and Equilibrium

3.4 Design Principles, Reactor Configurations, and Operations

Examples (Single and Multiple Components)

4. Transformation Process (I): Chemical Precipitation (April 15)

4.1 Introduction

4.2 Chemical Precipitation: Rate

4.3 Design of Recycling Reactors

4.4 Applications

5. Particle Separation Processes (I): Coagulation/Flucculation (April 15 & 22)

5.1 Introduction to Particle Separation Technology

5.2 Introduction to Colloid Chemistry

5.3 Coagulation

5.4 Mixing and Flocculation

5.5 Examples

6. Particle Separation Processes (II): Sedimentation/Flotation (April 29)

6.1 Introduction

6.2 Sedimentation Theory

6.3 Sedimentation Basin Design

6.4 Flotation Process Design

Particle Separation Processes (III): Filtration (May 13)

7.1 Introduction

7.2 Hydraulics of Flow Through Porous Media

Filtration Mechanism

Rapid Filter

Slow Sand Filter

Filter Design and Operation

8. Solute Separation Processes (III): Membrane Process (May 20)

8.1 Introduction

8.2 Reverse Osmosis: Principles and Application

8.3 Dialysis and Electrodialysis

8.4 Ultrafiltration and Nanofiltration

8.5 Examples (Single and Multiple Components)

9. Transformation Processes (II): Oxidation-Reduction (May 27)

9.1 Introduction to Redox Chemistry

9.2 Oxidants and Their Applications

9.3 Examples: Color, Taste and Odor Removal

9.4 Advanced Oxidation Technologies

10. Desinfection (TBA) (Professor Haas, Guest Lecturer)

10.1 Introduction

10.2 Chemistry of Disinfection

10.3 Disinfection Kinetics

10.4 Applications

11. Conclusion (June 3)