Sandra Dworatzek to Present on Advances in Bioaugmentation Cultures at Remediation Seminar’s Short Courses

Sandra Dworatzek (Principal Scientist at SiREM) will be presenting at the educational short course, “Optimization and Monitoring for Remediation of Chlorinated and Related Compounds,” along with speakers from Tersus, Eurofins, and Ellingson. Sandra will present “Exploring Advances in Bioaugmentation Cultures for Bioremediation of Recalcitrant Chemicals” and discuss bioremediation with attendees. The half-day short courses are in Downingtown, Pennsylvania, on April 9, 2024; Pennsauken Township, New Jersey, on April 10, 2024; and Woodbridge, New Jersey, on April 11, 2024.

Sandra is a Principal Scientist with more than 25 years of experience in bioremediation of chlorinated solvents, petroleum hydrocarbons, emerging contaminants, and other recalcitrant compounds. She has technical experience in the design of laboratory treatability studies, the scale-up of growth of aerobic and anaerobic microbial cultures for bioaugmentation laboratory and field pilot tests, and evaluation of aerobic and anaerobic bioremediation and zero valent iron and chemical oxidation technologies in the laboratory. She currently provides senior technical oversight of laboratory treatability studies and the development and scaleup of new bioaugmentation cultures, including novel cultures for BTEX compounds under anaerobic conditions and aerobic 1,4-dioxane bioremediation. Sandra currently is the industry lead on a Genome Canada funded project for the commercialization of anaerobic BTEX degrading cultures.

Remediation Seminar offers short courses on various topics related to soil and groundwater remediation throughout the year. Courses are open to sponsors, clients, and guests from within the groundwater remediation community. The short courses are taught by experts in in situ remediation and are eager to share their knowledge. At these events, attendees will connect directly with industry-leading practitioners as they highlight the latest ideas for contaminant source area delineation, bioremediation, and sustainable remediation technologies.


Bioaugmentation with dechlorinating cultures such as KB-1® and KB-1® Plus has become a well-established remediation technology for enhancing anaerobic bioremediation of chlorinated solvents. While Dehalococcoides spp. (Dhc) are renowned solvent dechlorinators, other dechlorinators including Dehalobacter, Geobacter and Dehalogenimonas offer supplementary dechlorination capabilities.

SiREM has made advances in characterizing anaerobic benzene, toluene, and xylene (BTX) biodegraders, cultivating bioaugmentation cultures (DGG-Plus™), and developing Gene-Trac® tests for in-situ monitoring. These tools offer effective bioremediation solutions for gasoline and other BTX-contaminated sites, where conventional aerobic remediation methods are impractical.

Bioremediation for chlorinated solvents and BTX compounds stands as one of the most cost-effective options, with bioaugmentation holding the potential to reduce remediation timeframes and broaden the scope of applicable sites. This presentation will delve into recent advancements in bioaugmentation cultures and molecular biological tools, in addition to providing case studies that exemplify the efficacy of bioremediation in chlorinated solvent and petroleum hydrocarbon efforts.

More Information

Register for the short courses: Remediation Seminar Registration

About the seminars: Remediation Seminars

About Tersus: Tersus

For consultation regarding bioaugmentation cultures or bench-scale testing, contact Sandra at