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Intro -- Contents -- Preface -- Sonocatalysis: A Potential Sustainable Pathway for the Valorization of Lignocellulosic Biomass and Derivatives -- Abstract -- Graphical Abstract -- 1 Introduction -- 2 Generalities on Sonochemistry -- 2.1 Homogeneous and Heterogeneous Sonochemical Systems -- 2.2 More Important Parameters in Sonochemistry -- 3 Ultrasound-Assisted Catalysis for Lignocellulosic Biomass Valorization -- 3.1 Principles of Sonocatalysis -- 3.2 Homogenous and Heterogeneous Sonocatalysis -- 4 Challenges and Future Perspectives -- Acknowledgements -- References -- Waste Printed Circuit Board (PCB) Recycling Techniques -- Abstract -- Introduction -- 2 Characterization of WPCB -- 3 Direct treatment methods---landfill and incineration -- 3.1 Landfill -- 3.2 Incineration -- 4 Primitive Recycling Techniques -- 4.1 Partial Recovery of Metallic Fraction from WPCB -- 4.1.1 Pyrometallurgy Recycling Techniques -- 4.1.2 Hydrometallurgy recycling techniques -- 4.1.3 Biometallurgy recycling techniques -- 4.2 Summary of partial recovery of metallic fraction from WPCB -- 4.3 Primitive full recovery from WPCB -- 5 Advanced Recycling Techniques -- 5.1 Mechanic Separation of MF and NMF -- 5.2 Density-based Separation -- 5.3 Magnetic-based separation -- 5.4 Electronic conductivity-based separation -- 5.5 Directly Recycling of Nonmetallic Fraction from WPCB -- 5.6 Modification of Nonmetallic Fraction from WPCB -- 6 Perspectives on Recycling Technologies -- 6.1 Economy Perspective -- 6.2 Environmental Perspective -- 7 Conclusions -- References -- Chemical Valorization of Cashew Nut Shell Waste -- Abstract -- 1 Introduction -- 2 Extraction of Cashew Nut Shell Liquid from the Cashew Nut Shells -- 3 Solvent Extraction of CNSL -- 4 Thermal Extraction of CNSL -- 5 Mechanical Extraction Process -- 6 Applications of Cashew Nut Shell Liquid.

The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Chapters "Sonocatalysis: A Potential Sustainable Pathway for the Valorization of Lignocellulosic Biomass and Derivatives", "Valorisation of Biowastes for the Production of Green Materials Using Chemical Methods" and "Green and Sustainable Separation of Natural Products from Agro-Industrial Waste: Challenges, Potentialities, and Perspectives on Emerging Approaches" are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com

Chapter 1. Bird Diversity in the Mining Area of Bellary-Hospet Region, Karnataka, India -- Chapter 2. IOT Based Waste Management System through Cloud Computing and WSN -- Chapter 3. A Study on Selection of the Biofilm for the Hybrid Up-Flow Anaerobic Sludge Blanket (Huasb) Reactor Using the Computational Fluid Dynamics (CFD) Analysis -- Chapter 4. Experimental Investigations on the combined effect of TiO2 Nano additive and EGR on Engine Performance by using Mimusops Elangi Biodiesel Blend -- Chapter 5. Production and Application of chitosanases in Valorization of Crustacean Waste to Wealth -- Chapter 6. Capture of CO2 from Automobile exhaust by using Physical Adsorption Technique -- Chapter 7. Chemical Characterization and Environmental Implications of Recycled Sewage Sludge in the Proximity Soil of Treatment Plant -- Chapter 8. Novel Techniques of Synthesis of Nano-Cellulose from Sugarcane Bagasse and Its Applications in Dye Removal -- Chapter 9. Assessment of Greenhouse Gases and Perception of Communities on Emissions from the Largest Dumpsite in Africa -- Chapter 10. Performance Analysis of Treatment of Distillery Spent-wash Using EGSB Reactor with Addition of Iron and Manganese.

Chapter 1. Overview of Food Loss and Waste in Fruits and Vegetables: From Issue to Resources -- Chapter 2. Drying and Extraction Approach for Utilization of Vegetable and Fruit Waste -- Chapter 3. Recovery of Wasted Vegetables and Fruits for Food Additives Eva Dorta and Gloria Lobo -- Chapter 4. Phenolic and Other Bioactive Compounds from Vegetable and Fruit Waste: Extraction Methods and Their Possible Utilization -- Chapter 5. Utilization of Fruit and Vegetable Wastes for the Cultivation of Edible Mushrooms -- Chapter 6. Fruit and vegetable wastes as livestock feeds -- Chapter 7. Vegetable and Fruit Wastes As Substrate for Production of Single-Cell Protein and Aquafeed Meal -- Chapter 8. Composting and Vermicomposting Process: Relationship between Microorganism and Physic-Chemical Parameters with Special Reference to Tropical Tuber Crops -- Chapter 9. Vegetables and Fruits Wastes: Utilization in Novel Industrial Applications -- Chapter 10. Microbial Enzymes and Organic Acids Production from Vegetable and Fruit Wastes and Their Applications -- Chapter 11. Fruit and Vegetable Peels Waste: Applications in Food and Environmental Industries -- Chapter 12. Biomolecules from Orange and Grape Waste - Direct and Indirect Obtaining -- Chapter 13. Valorization of Fruit and Vegetable Waste: Yeast Fermentation -- Chapter 14. Microbial Production of Polysaccharides, Oligosaccharides, and Sugar Alcohols from Vegetables and Fruit Wastes -- Chapter 15. Fluorescent Carbon Dots from Vegetable and Fruit Wastes and Their Applications -- Chapter 16. Biocomposites from Fruits and Vegetable Wastes and Their Applications -- Chapter 17. Biofuel Production from Vegetable and Fruit Wastes: Creating a Circular Economy -- Chapter 18. Life Cycle Assessment of Valorization of Vegetables and Fruit Wastes as Biocommodities and Biofuels.

Municipal solid waste (MSW) is considered to be one of the critical issues in developing countries. To manage this waste in a sustainable way, it is necessary to develop integrated processes to find its multiple utilization pathways. Hydrothermal carbonization (HTC) of MSW integrated with power generation and nutrient recovery could be a plausible solution to the wet waste handling problem in a densely populated country like Bangladesh. In this study, MSW sampled from a landfill of Dhaka city revealed the presence of high amount of organic waste (~ 74 w/w%). This facilitated the concept of waste valorization through nutrient recovery. The heating value of the MSW was found to be 14.7 MJ/kg (on dry basis) making it a suitable source for power generation. HTC experiments on the waste showed a retention of almost ~83% of the energy in biocoal. Based on these results, an integrated biorefinery having a capacity of processing all the MSW generated in Dhaka, can produce 45 MWe power with 3.2 ton/day of K and 0.9 ton/day of Ca as by-product. These results would be further evaluated in a pilot-scale demonstration in 2020. ; 256 ; 260 ; 5 ; Energy, Power and Research Council, Government of People's Republic of Bangladesh

Municipal solid waste and food supply chain waste are globally generated in large quantities from various sectors including various stages of food supply chains, municipalities, open markets and catering services. A prevailing priority in the EU is to stimulate the transition towards a circular economy that fosters the promotion of sustainable and resource-efficient policies for long-term socio-economic and environmental benefits. Common practices for waste management include landfill disposal, anaerobic digestion, composting and wastewater treatment. Recently, new technologies have been introduced to produce value-added products from agricultural residues and food processing side streams. Integrated and holistic approaches for organic waste utilization as industrial feedstocks will boost the transition towards the bio-economy era. The establishment of circular economy would expand and diversify the market outlets of bio-based products. This review provides an overview of the current methods on waste and by-product streams bioconversion to develop biorefinery concepts.

AbstractThe concept of the circular economy has gained significant political momentum because it offers policymakers a viable approach to tackling resource depletion, reducing waste and promoting economic development all at the same time. Current research, however, only focuses on the technological feasibility of this model, overlooking circularity's inherent contradiction: namely, that it valorizes waste rather than reducing it. This article tackles this limit by questioning the role of the state in what we describe as 'waste valorization'. It interrogates the urban political ecology of construction and demolition waste, the largest stream of inert materials in the world. It analyses CDW's geographies and economic position in urban development and the shifting rationales by which it is governed. To do this, it compares historical shifts in how CDW has been regulated in Hong Kong and Rotterdam. The article shows that waste is no longer an abject residual of urbanization, but a driver of urban development and a burgeoning sphere of accumulation in ecological capitalism.