Dr. Mahendra Aryal is a chemist and environmental biotechnology researcher with extensive experience in bioremediation, biosorption, water quality, waste valorization, and environmental sustainability. He holds a PhD from Aristotle University of Thessaloniki, Greece, and completed postdoctoral research on the valorization of winery wastes using eco-friendly technologies. Dr. Aryal has authored 30+ peer-reviewed publications in high-impact international journals, accumulating hundreds of citations, and has actively collaborated with researchers across Europe and South Asia. His work bridges fundamental chemistry with applied environmental solutions, contributing to safe water management, pollution mitigation, and circular bioeconomy practices. In addition to his research, he is an experienced academic, journal editor, and reviewer, and a recipient of national and international research awards, reflecting his sustained scientific and societal impact.