Pilot-Plant Demonstration of Wet Oxidation for Treatment of Shipboard Wastewaters.
Final rept. Sep 72-Feb 74,
BARBER-COLMAN CO SANTA ANA CA RESOURCERECOVERY SYSTEMS DIV
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Two processes were demonstrated 1 Acidic wet oxidation of wastewater and direct discharge of the effluent and 2 ammoniacal wet oxidation and recycling of toilet flushings. Fifty-gallon batches of wastewater were treated in a full-scale 20-man prototype system. Wet oxidation was effected in a continuous-flow horizontal autocalve in which wastewater and air were reacted concurrently in a series of stirred chambers. The total pressure of the reactor was 600 psi, and the temperature ranged from 400 to 480F. Percentage reduction in COD ranged from about 65 to 95 in tests conducted on body sewage and simulated wastewaters from the galley and bilge. Laundry water proved indestructible sodium lauryl sulfate, the most prevalent modern detergent, was unaffected. An engineering design is presented for a 20-man shipboard waste treatment system in which body sewage and solid galley waste are conducted through the reactor in an ammoniacal liquor which is recycled as flushant to recirculating toilets.
- Marine Engineering
- Water Pollution and Control