Chapter 1. Principles and methods for the removal of microplastics in wastewater -- Chapter 2. The impacts of plastics on environmental sustainability and ways to degrade microplastics -- Chapter 3 Biosurfactants for plastic biodegradation -- Chapter 4. zinc oxide nanoparticles for the treatment of textile dye effluent -- Chapter 5. Advancements on biotechnological and microbial biodegradation of textile wastewater -- Chapter 6. Emergence of antimicrobial resistance among microbiome in wastewater treatment plant and strategies to tackle their effects in environment -- Chapter 7. The role of wastewater treatment technologies in municipal landfill leachate treatment -- Chapter 8. Fungal bioremediation of soils contaminated by petroleum hydrocarbons -- Chapter 9. Microbial biosurfactant in the removal of hydrophobic (oily) pollutants laden industrial wastes -- Chapter 10. Hazardous Organic Pollutant Contamination in Indian Holistic Rivers Risk Assessment and Prevention Strategies -- Chapter11. Is marine waste a boon or bane? An insight on its source, production, disposal consequences and utilization -- Chapter 12. A waste-to-wealth prospective through biotechnological advancements -- Chapter 13. Industrial perspectives of the three major generations of liquid and gaseous based biofuel production -- Chapter 14. Metabolic Engineering Approaches for Bioenergy production -- Chapter 15. Exploitation of Marine Waste for Value Added Products synthesis.