5. All the water in the ZAP-C 3 process is recycled and reused within the reactor system; however, since the residue water from the ZAP-C 3 process is alkaline (>10 pH), it is an ideal source for alkaline electrolysis for generating green H2 and O2 . Since it is not sea water containing chloride it is not necessary to control pH or use an over potential as used in other process making its deployment simpler.