Dr. Eng. Alexandru Vlaicu is a Scientific Researcher at the National Institute for Research & Development in Chemistry and Petrochemistry in Bucharest, Romania, working primarily within the Alternative Bioresources and Biofuels research team. Throughout his career as both a PhD candidate and a researcher at, his work has consistently focused on advancing eco-friendly technologies, integrating unconventional techniques to intensify chemical and biochemical processes, alongside innovative strategies for wastewater valorization to drive biomass yield and the production of high-value biocompounds. Key Areas of Expertise: Research into the alternative biofuel synthesis using using process intensification techniques, including ultrasonic, hydrodynamic, and microwave-assisted synthesis, microalgae cultivation and wastewater treatment, extraction of bioactive compounds from microalgal strains, bioremediation research using microalgae, application of ultrasound-assisted extraction and bioflocculants for harvesting microalgae and obtaining high-value bioactive extracts, synthesis and characterization of Al-based mixed-oxide catalysts, pyrolysis of biomass side-streams to yield high-quality biochar and bio-oil.