Nature-Based Technologies for Wastewater Treatment and Bioenergy ProductionOpen Access
An accessible ePub edition is available here
With 80% of wastewater globally discharged untreated and non-renewable energy resources rapidly depleting, the call for sustainable solutions has never been louder.
Nature-Based Technologies for Wastewater Treatment and Bioenergy Production explores the groundbreaking integration of natural systems and advanced technologies to address critical global challenges in wastewater management and renewable energy. This book delves into nature-based technological approaches such as constructed wetlands, bio-aided filtration systems, and photobioreactors for microalgae cultivation, showcasing their potential to transform wastewater into a valuable resource while significantly reducing the environmental footprint.
Rooted in innovative research, the book emphasizes advanced techniques for nutrient recovery, pollutant removal, and carbon capture. It examines the role of emerging technologies, such as high-rate algal ponds and hybrid treatment systems, in achieving cost-effective and energy-efficient wastewater treatment. Highlighting the science behind microalgae-based biodiesel production, the book also explores the potential of algae-derived bioproducts such as biofertilizers, bioplastics, and animal feed supplements, underscoring the role of these innovations in building a sustainable bioeconomy.
Rich in real-world applications, this reference work provides practical insights for academia, researchers, students, industry professionals, scholars, practitioners, and policymakers. It addresses critical issues such as wastewater management, rising energy demands, and carbon footprint while demonstrating scalable solutions for global implementation.
Nature-Based Technologies for Wastewater Treatment and Bioenergy Production envisions a future where nature-inspired technologies lead to a thriving circular bioeconomy. By combining natural processes with advanced technologies, this book lays the roadmap for transforming environmental challenges into sustainable opportunities and fostering cleaner and more resilient planetary health.
ISBN: 9781789064094 (paperback)
ISBN: 9781789064100 (eBook)
ISBN: 9781789064117 (ePub)
Chapter 13: A review of extraction of biodiesel from non-edible oils and microalgae using nanocatalysts Open Access
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Published:February 2025
Sindhu Subramanian, V. M. Vijay Kirushnan, A. Amritha, V. S. Sanjay Kumaar, N. V. Shobika, P. Dhamothar, S. Swetha, 2025. "A review of extraction of biodiesel from non-edible oils and microalgae using nanocatalysts", Nature-Based Technologies for Wastewater Treatment and Bioenergy Production, Imran Ahmad, Norhayati Abdullah
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Abstract
With rapidly on-going energy demand and fast depletion of fossil fuels, the option of choosing biodiesel holds the upper-hand. Biodiesel production from edible oils was observed to be not feasible by industry due to the usage of feedstocks as food resources. Recently research using heterogeneous catalysts for biodiesel production from the non-edible oils and algal oil is considered way superior to homogeneous catalysts due to the lower selectivity, activity, recovery, and reusability of catalysts. This chapter aims to review critically a portion of the usage of non-edible oils and algal oils for biodiesel production via heterogeneous catalysts and nanoheterogeneous catalysts. It includes the preparation and characterization of catalysts, optimized conditions for alkyl ester production, and characterization of biodiesel. It also includes the selection of suitable catalysts for industrial application.