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Daniel L. Theobald

Known in the industry as “Wastewater Dan,” Daniel L. Theobald, proprietor of Environmental Services, is a professional wastewater and safety consultant/trainer. He has more than 24 years of hands-on industry experience operating many variants of wastewater treatment processing units and is eager to share with others his knowledge about water conservation. (www.Conserve-On-Water.com).

Theobald serves as an active consultant for industries looking to achieve and maintain improved wastewater treatment at reduced cost. He is a Lifetime Member of the Who’s Who Registry of Professionals and holds numerous certifications from wastewater management regulatory boards and professional organizations. Theobald contributed one chapter to the Water Environment Federation’s (www.wef.org) Manual of Practice # 37 (MOP-37), a technical manual resource guide for biological nutrient removal, published the summer of 2013. He also publishes educational videos (www.youtube.com/user/wastewaterdan/) and authors two blogs; Wastewater Education; (TheWastewaterWizardBlog.com/) and (WaterQuantityandQualityBlog.com/).

ARTICLES

Control of activated sludge, including troubleshooting

The what and wherefores of a well-known process, simply explained
Daniel L. Theobald
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Activated sludge isn’t a thing, it’s a process. As a sewage and industrial wastewater treatment, it makes use of air and a biological floc composed of bacteria and protozoa.
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Batch and continuous pH control compared and contrasted

Someone recently asked, “What are process controls for adjusting and maintaining pH during wastewater treatment?”
Daniel L. Theobald
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The pH is one of the most important and frequently used measurements in wastewater treatment. Dependence of pH occurs in practically every phase of water supply and wastewater treatment, e.g., acid-base neutralization, water softening, precipitation, coagulation, disinfection and corrosion control.
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