Mary Bonislasky (Knosby) was a graduate student with Dr. Linden from 1997-1999 and graduated with a MS degree in Civil Engineering. Â During her time at the University of North Carolina at Charlotte she researched comparison of performance and operations and maintenance costs for three biological nutrient removal schemes at a full-scale wastewater treatment plant. Â After graduation, she went on to work as a Project Engineer with Black & Veatch. Â Currently she is the South Atlantic Leader and Vice President at HDR