PILOT-PLANT DEMONSTRATION OF WET OXIDATION FOR TREATMENT OF SHIPBOARD WASTEWATERS
Two processes were demonstrated: (1) Acidic wet oxidation of wastewater and direct discharge of the effluent; and (2) ammoniacal wet oxidation and recycling of toliet 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.
Barber-Colman CompanyResource Recovery Systems Division
Irvine, CA USA
- Bridges, D W
- Fassell, W M
- Publication Date: 1975-11
- Pagination: 423 p.
- TRT Terms: Oxidation; Sewage treatment; Ships; Waste management
- Old TRIS Terms: Shipboard sewage treatment; Waste discharge management; Wet oxidation process
- Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00144369
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: USCG-D-34-76 Final Rpt.
- Contract Numbers: DOT-CG-31323-A
- Files: NTIS, TRIS
- Created Date: Jan 16 1977 12:00AM