Aerobic Composting Plant on the Shore

Aerobic Composting Plant on the Shore

Due to some unforeseeable situations, we are being asked to set up an aerobic composting plant on the beach shore. I was wondering if the system might turn toxic and might lead to the death of aerobic bacteria?  It would be a great help if someone could comment on this. Thanks in advance. I have provided an image of the aerobic composting plant (reinforced concrete structure) which would be constructed on the shore.