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Jack Gregersen, P.E.:Environmental Engineer
Education: MS Water Resources from Iowa State University (1971) and BA Science (Chemistry Emphasis) from the University of Northern Iowa.
 Jack has experience in many environmental areas, such as industrial waste water, quality control testing and chemical lab work for treatment plants. He has conducted experiments and tests, analyzed data and prepared reports concerning environmental affairs.
He has helped a client meet requirements for NADCAP certification by review and revision of chemical and plating processes. He has worked on Phase 1 Environmental Site Assessment reports per ASTM E 1527
Mr. Gregersen worked at Hawkeye Chemical Co. and had responsibilities for quality control, environmental testing and some process activities. Later, Jack joined the Department of Immunochemistry Research and studied the chemical composition of active substances. At Tenco Hydro/Aerosciences Inc. he did treatment studies including application tests for dissolved air treatment equipment and testing on waste water. At Pentech/Houdaille, Gregersen did research and ran tests on aeration equipment. He traveled to Belgium and Austria to check installed equipment in treatment plants. At John Deere, he worked primarily in environmental operations but had some experience in environmental affairs.
Over his career, Jack has worked on a number of projects and technical investigations. The following list illustrates the wide variety of projects and control systems that he has worked on:
• Environmental Operation: John Deere
- Treatment of liquid wastes for commercial customers
- Managed commercial treatment of various waste materials for Iowa companies who did not have adequate in-house tratment capability
- Treatment of liquid wastes for John Deere operations
- Coolants from machining operations
- Rinse water from plating processes (chrome, zinc, etc)
- Part washer liquids
- Waste water from heat treating process
- Quenching
- Conducted tests to determine treatability of waste to determine disposition
- Monitored waste treatment operations, prepared plans, collected data and wrote reports
- Laboratory work in support of waste treatment operations
- Maintained operational spreadsheets and data base systems
- Laboratory testing using atomic absorption spectrophotometer and calorimeter
- Coordination of activities with bargaining unit personnel
- Trained as required for dealing with hazardous materials and wastes
- Kept current on code of Federal Regulations (especially section 40)
• Environmental Affairs: John Deere
- Inventory and labeling of PCB containing electrical equipment
- Search for underground tanks
- Study of Federal Register
- Assisted with efforts to comply with right to know regulations
- Trained as required for dealing with hazardous materials and wastes
- Kept current on code of Federal Regulations (especially section 40)
• Application Engineer and Chemist - Pentech Div. Houdaille Industries
- Tested jet aeration equipment for oxygen transfer in company test tank and various installed systems
- Tested equipment for research on wastewater disinfection product
- Engineering work on jet aeration systems for activated sludge treatment plants in Austria and Belgium
- Worked on applications of jet aeration systems for chemical oxidation, mostly sulfite to sulfate oxidation for power plant scrubbers and mixing
- Planned study for municipal plant to determine if their wastewater could be treated by activated sludge, helped plant personnel run study and wrote report
- Oxygen uptake tests - Did alpha tests including full-scale industrial site test
- Design of aeration systems for nominally complete mix systems in round, square or rectangular tanks and for directional or track configurations
- Preparation work for chemical oxidation and mixing applications
- Research testing of aeration systems for oxygen transfer in test facility
- Demonstration testing of aeration system for oxygen transfer at various sites
- Industrial testing and trouble shooting for food processing, appliance manufacturing, brewery (oxygen uptake tests), mixing (paper mill), sludge settling (chemical plant and paper mill)
- Municipal testing and trouble shooting in U.S. and Austria on treatability and oxygen uptake
- Disinfection testing - Analysis of bacteria survival for testing jet disinfection equipment and comparison of jet pumps
• Chemical Research - Tenco Hydro/Aerosciences, Inc
- Research projects in support of engineering and sales operations
- Conducted treatability studies for dissolved air flotation treatment equipment
- Studied process for recovery of chrome from tannery waste. Patent 3,819,799 awarded for the resulting process
• Chemist - Dept. of Immunochemistry Research, Evanston Hospital
- Studied chemical composition of active substances using biochemical techniques. Work related to Immunochemistry for blood typing
• Chemist - Hawkeye Chemical Co.
- Work in support of the manufacture of nitrogen-containing fertilizers
- Environmental testing
Additional Information
Education details: Jack's training included courses related to biology, land resource economics, environmental geology and community development plus a number of courses in business administration. Jack's MS thesis focused on the use of activated carbon and ozone for treatment of waste streams containing aromatic compounds.
Jack is member of the American Chemical Society and enjoys gardening. |
