Title: Troubleshooting Wastewater Pretreatment Systems
Learner will be able to identify unit operations at pretreatment plant--DAF, aeration, clarification, dewatering an understand what each is supposed to do.
Learner will be able to devise a sampling scheme to identify whether unit operations are working as expected
Learner will be aware of calculations used for evaluation: food to microorganism ratio, C:N:P ratio, sludge age, mean cell retention time, calculate sludge dry weight
Learner will have improved appreciation for desirable and less appreciated microbes (bulking bacteria)
1) Look for opportunities at the wastewater pretreatment faciity at places where you are providing water treatment chemistry or clean-in-place
2) Be aware of the unit operations, calculations that can describe them
3) Be aware that microscopy and some lab services can be helpful
Water treatment professionals working at food or manufacturing facilities where they arealready providing water treatment or clean-in-place chemistries may become effective contributors to the wastewater pretreatment system. This presentation includes suggestions for evaluating unit operations performance, calculating nutrient ratios, sludge dry weight, hydraulic and sludge retention times. Photomicrographs of helpful and less desirable microbes will be shown.
Amanda Meitz is the owner of Biosolutions, LLC, a water, water deposits, and wastewater testing laboratory. She was employed at the Nalco Diversified Technologies and predecessor companies that spanned 25+ years in water treatment and served on multiple committees at ASHRAE meetings. She holds a Bacheor of Arts degree in biology from Adrian College and a Master of Science degree in Microbiology from Michigan State University.