Biodegradation of organic pollutants for its effective remediation from the environment and the role of various factors affecting the biodegradation process / Anubhuti Singh, Virendra Kumar Mishra -- Green-synthesized nanoparticles for treatment of wastewater: an environmentally sustrainable pollution remediation technology / Amit Kumar Patel [and 4 others] -- A review of green and innovative technology for a sustainable environment / Abhinav Yadav.