Ozonized biochar compositions and methods for creating advanced hydrophilic biochar materials are provided with higher cation exchange capacity, optimized pH, improved wettability, and free of potential toxic components. These ozonized biochar compositions are used as filtration materials, as biochar soil additives and as carbon sequestration agents to help control climate change for energy and environmental sustainability on Earth.

The present invention discloses a process for the oxidation of fatty acids comprises reacting fatty acid with O.sub.2 containing O.sub.3 for a period of 0.1-60 min at a temp in the range of 78 to 30 deg C. to obtain the corresponding products, wherein the conversion of the fatty acid is in the range of 80% to 100% and the process is catalyst free and co-oxidant free.

The present invention discloses a process for the oxidation of fatty acids comprises reacting fatty acid with O.sub.2 containing O.sub.3 for a period of 0.1-60 min at a temp in the range of 78 to 30 deg C. to obtain the corresponding products, wherein the conversion of the fatty acid is in the range of 80% to 100% and the process is catalyst free and co-oxidant free.