Md Ashik Ahmed

JSNN, North Carolina A&T State University

08.2021 - Current

Designed and built biological nutrient removal (BNR) systems, including sequencing batch reactors (SBR) and enhanced biological phosphorus removal (EBPR).
Conducted bench-scale SBR and EBPR with the Modified Ludzack–Ettinger (MLE) process, achieving 95% nitrogen and 87% phosphorus removal.
Improved sludge management by optimizing sludge volume index (SVI) and solid retention time (SRT); implemented dewatering and cake processing.
Prepared TiO₂ nanofibers via electrospinning and characterized with SEM, FTIR, XRD, EDX, and BET.
Applied Fenton oxidation, GAC, and UV/O₃ photodegradation with TiO₂ nanofiber and removed 89% dissolved organic nitrogen (DON); monitored with FTICR-MS, FTIR, EEM-PARAFAC, TOC, and spectrophotometry.
Conducted in-situ algal bioassays in the Neuse River estuary to assess DON's eutrophication risks and treatment effectiveness.
Developed a PFAS remediation strategy using modified coal fly ash (CFA) to adsorb PFAS and reused PFAS-laden CFA in concrete, minimizing leaching by 96%.
Reviewed pilot-scale membrane technologies (MBR, NF, RO) for PFAS-impacted water, with emphasis on reuse potential.
Mentored seven undergraduate students in experimental design, data analysis, and scientific writing, leading to conference abstracts and publications.
Collaborated with faculty and multidisciplinary teams on research, contaminant monitoring, and technical publications.
Presented research findings at university symposia and regional environmental conferences.

Texas State University

01.2021 - 08.2021

Assisted with teaching and research responsibilities, supporting both classroom instruction and applied lab studies.
Conducted drinking water quality testing, stormwater parameters and metals in stormwater testing, and heterotrophic plate count (HPC) experiments.
Designed an 80 GPD mini pilot-scale system for Enhanced Water Recovery, integrating photobiological process with secondary reverse osmosis.
Collected and analyzed reclaimed water from a WWTP to support water quality research.
Reviewed 84 recent studies on drinking water ozonation and prepared a technical report for Mitsubishi Electric.

European University of Bangladesh

11.2017 - 12.2020

Taught undergraduate courses in Environmental Engineering, Waste Management, Fluid Mechanics, etc., emphasizing process optimization and wastewater application.
Led fieldwork and lab sessions, including Surveying, Drinking Water, and Wastewater Treatment Plant design and visits.
Facilitated workshops on essential software applications used in the field of civil engineering, preparing students for their future careers.
Supervised 18 student thesis projects, leading to 2 journal articles and 5 conference papers.

Summary