Sandra Dworatzek
Affiliation
SIREM
Biography
Senior Principal scientist at SiREM, B.Sc. and M.Sc in Biology, University of Waterloo Ms. Dworatzek is an environmental microbiologist with advanced technical experience in laboratory treatability studies. Over the past 30 years she has conducted and overseen numerous bench-scale studies examining enhanced remediation of chlorinated solvents, petroleum hydrocarbons, emerging contaminants and other recalcitrant compounds. She has specific technical experience in the design of laboratory treatability studies, evaluating aerobic and anaerobic bioremediation, zero valent iron and chemical oxidation technologies in the laboratory, the scale up of growth of aerobic and anaerobic microbial cultures for bioaugmentation laboratory and field pilot tests. She currently provides senior technical oversight of laboratory treatability studies, and she manages the development and scale-up new bioaugmentation cultures. Ms. Dworatzek provides technical oversight for the development of new bioaugmentation cultures for a wide range of emerging contaminants including 1,2,3-trichlorpropane, perchlorate and sulfolane).This work includes developing novel cultures for BTEX compounds under anaerobic conditions and developing aerobic cultures to remediate 1,4-dioxane. Sandra is the industry lead for a project funded by Genome Canada that has successfully commercialized anaerobic BTX-degrading cultures.
Successful Cleanup of Low-Level Chlorinated Propanes in Groundwater Using an In Situ Bioreactor
Srinivasa Varadhan; Melissa Asher; Richard Hodges; Sandra Dworatzek & Eric Suchomel
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Publication Year: 2024
Part of: H1.: In Situ Technologies: Lessons Learned (Platform)
AbstractBreaking Benzene: Translating Decades of Anaerobic Bioremediation Research to Field Practice
Sandra Dworatzek; Jennifer Webb; Elizabeth Edwards & Courtney Toth
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Publication Year: 2024
Part of: D10.: In Situ Remediation of Petroleum Hydrocarbons (Platform)
AbstractAssessment of Metabolic and Cometabolic 1,4-Dioxane Biodegradation in Groundwater with Complex Hydrocarbon Contamination
Sandra Dworatzek; Jennifer Webb; Rachel Hallman; Alfredo Perez-de-Mora & Ludwig Immler
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Publication Year: 2024
Part of: B7.: 1,4-Dioxane Remediation Challenges (Platform)
Abstract(Group 2, Poster Board #33) In Situ Bioremediation of 1,4-Dioxane in Mixed Contaminant Plume with Metabolic Bioaugmentation and Cometabolism
Fritz Krembs; Mitch Olson; Mark Settembrino; Sandra Dworatzek & Kyle McDonald
13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Publication Year: 2024
Part of: B9.: Advances in Biological Treatment of Mixed Contaminant Plumes (Poster)
AbstractIn Situ Bioremediation of 1,4-Dioxane in Mixed Plume with Cycled Anaerobic and Aerobic Metabolic Bioaugmentation and Cometabolism
Fritz Krembs; Kyle McDonald; Mark Settembrino; Ana Hopper & Sandra Dworatzek
Publication Year: 2025
Part of: D6.: Impacts of Mixed Contaminants on Biodegradation (Platforms)
Abstract