Chapter-01 Waste biomass valorization and its application in the environment -- Chapter-2 Biomass valorization as Energy production using waste biomass -- Chapter-3 Volatile Organic Compounds Impacts on Environment Bio-filtration an effective control method-A Review -- Chapter - 4 Utilization of waste Biomass for producing useful Chemical -- Chapter-5 Forestry biomass as carbon neutral source for the production of biofuels and aromatics -- Chapter-6 Biomass (Algae) Valorization as an Energy Perspective: Review of Process Options and Utilization -- Chapter-7 Bio-hydrogen Production Using Agricultural Biowaste Materials -- Chapter-8 Conversion of Food Waste into Valuable Products -- Chapter-9 Food Waste Materials for Bioenergy Production -- Chapter-10 Biochar for sustainable crop production -- Chapter-11 Production of alternative fuel from lignocellulosic kitchen waste through pyrolysis -- Chapter-12 Generation of bio-energy from industrial waste materials.