Mr. Dirth earned his Bachelor’s of Science degree in Chemical and Petroleum Refining Engineering from the Colorado School of Mines – Golden, Colorado in 1983. He immediately began a career in the Industrial Gas Industry as a Sales Engineer for Liquid Air Corporation in Willowbrook, Illinois. Several years later he became a CO2 Applications Engineer and Technical Services Manager for Carbonic Industries Corporation and Airgas Carbonic in Duluth, Georgia. (1986-1989; 1993-2002). In the early ‘90’s Mr. Dirth worked as a Process Engineer for the Clorox Company where he developed the process for the National production of Clorox 2 in the Company’s state of the art manufacturing facility in Dyersburg, TN. In 2002 he joined TOMCO2 Systems in his current role as Product Manager for the Water Technologies Division. Mr. Dirth has over 30 years of Applications Engineering experience in the CO2 Industry and utilizes this experience assisting Consulting Engineering firms with the design of CO2 pH control systems for Municipal Water Treatment Plants throughout the United States and Canada. Mr. Dirth has been involved with the design over 500 CO2 pH control systems in his career. He is a current member of the AWWA B510 standards committee for Carbon Dioxide.

The participant will learn about water treatment applications for carbon dioxide pH control systems, the basics of CO₂, the equipment required, and the differences between CO₂ injection methods.  The presentation will also include a discussion of other pH control methods.

The physical properties of carbon dioxide are unique. These properties dictate how carbon dioxide is manufactured, transported, stored and applied into the process.

The reaction of carbon dioxide in water is what is utilized for municipal water treatment pH control applications. There are many different treatment processes and applications that require efficient control of pH. Many of these applications will be discussed.

The typical equipment required is a bulk liquid carbon dioxide storage receiver, vaporizer, vapor heater, pressure regulators, feed panel and diffusers. Detailed discussion of the selection of the appropriate equipment for the site conditions and process application will be discussed. A comparison of different carbon dioxide feed methods will be provided.

A brief description of other methods of pH control is included at the end of the presentation.