1. An introduction to cost-effective technologies for solid waste and wastewater treatment Madhuraj Palat Kannankai and Suja Purushothaman Devipriya 2. Bioaugmentation and biostimulation of dumpsites for plastic degradation: A critical insight Shaileshkumar Baskaran and Mythili Sathiavelu 3. Bioremediation approach for treatment of soil contaminated with radiocesium M. Srinivasulu, G. Narasimha, and A.J. Francis 4. Management of biodegradable waste through the production of single-cell protein Rajeswari Uppala and Azhaguchamy Muthukumaran 5. Application of plant-based natural coagulants in water treatment Arunkumar Patchaiyappan and Suja Purushothaman Devipriya 6. Recent applications of downflow hanging sponge technology for decentralized wastewater treatment Mahmoud Nasr, Michael Attia, Hani Ezz, and Mona G. Ibrahim 7. Assessment of biochar application in decontamination of water and wastewater Alaa El Din Mahmoud and Srujana Kathi 8. In situ chemical oxidation (ISCO) remediation: A focus on activated persulfate oxidation of pesticide-contaminated soil and groundwater Rama Mohan Kurakalva 9. Composting of food waste: A novel approach M. Anand, T.B. Anjali, K.B. Akhilesh, and John K. Satheesh 10. Biological pretreatment for enhancement of biogas production Aishiki Banerjee, Binoy Kumar Show, Shibani Chaudhury, and S. Balachandran 11. Recent trends in bioremediation of pollutants by enzymatic approaches M. Srinivasulu, M. Subhosh Chandra, Naga Raju Maddela, Narasimha Golla, and Bellamkonda Ramesh 12. Phytoremediation of heavy metals and petroleum hydrocarbons using Cynodon dactylon Srujana Kathi 13. Proteobacteria response to heavy metal pollution stress and their bioremediation potential Nyoyoko Veronica Fabian 14. Treatment of harvested rainwater and reuse: Practices, prospects, and challenges Siril Singh, Rajni Yadav, Srujana Kathi, and Anand Narain Singh 15. Phytoremediation: A wonderful costeffective tool for the treatment of waste disposal Rajni Yadav, Siril Singh, Abhishek Kumar, and Anand Narain Singh 16. Vermicomposting: An efficient technology for the stabilization and bioremediation of pulp and paper mill sludge Subpiramaniyam Sivakumar, Kaliannan Thamaraiselvi, Duraisamy Prabha, Thyagarajan Lakshmi Priya, Hong Sung-Chul, Yi Pyoung-In, Jang Seong-Ho, and Suh Jeong-Min 17. Potential of solid waste prevention and minimization strategies Anbarashan Padmavathy and Munisamy Anbarashan 18. Nanoremediation of pollutants: A conspectus of heavy metals degradation by nanomaterials Nt Nandhini and Mythili Sathiavelu 19. Excess fluoride issues and mitigation using low-cost techniques from groundwater: A review Adane Woldemedhin Kalsido, Beteley Tekola, Beshah Mogessie, and Esayas Alemayehu 20. Cost-effective biogenic-production of inorganic nanoparticles, characterizations, and their antimicrobial properties Kishore Kumar Kadimpati and Narasimha Golla