Bleach reacting with human waste forms a harmless white milky liquid that can be dumped overboard and ejected by submarines. Even the environmentalists don’t object. Offshore platforms and ships have Hypochlorite generators for exactly that purpose. The same chemistry can be used in onshore sewage plants but then you will need to haul large amounts of salt or seawater. Electricity demand for electrolysis will be higher and during brownouts and blackouts the odor emanating from the plant will be quite pungent, I predict. And in Biden’s America, we can be sure of beaucoup blackouts.(little french)