BIODEGRADATION OF SHIPBOARD WASTEWATER IN COLLECTION, HOLDING, AND TRANSFER TANKS
Eight different waste mixtures representing shipboard holding-tank contents were incubated in test tanks under controlled conditions to determine gas-generation rates and the quantitative effects of varying specific environmental parameters. Indicators of biological activity monitored in the waste mixtures included oxidation/reduction potential, pH, dissolved oxygen, and the concentrations of sulfate, nitrate, and nolatile acids. In addition, concentrations of various gases in the tank ullage were monitored, including oxygen, hydrogen sulfide, carbon dioxide, ethyl mercaptan, methyl mercaptan, carbon monoxide, methane, ammonia, and hydrogen cyanide. Gas-generation rate constants and other relevant data were applied to the development of a gas-generation model capable of predicting the concentrations of potentially hazardous gases in shipboard holding tanks.
David Taylor Naval Ship R&D CenterBethesda, MD USA 20084
- Lardis, A E
- Geyer, A T
- Publication Date: 1978-1
- Pagination: 84 p.
- TRT Terms: Biodeterioration; Coal gasification; Hazard evaluation; Sewage holding tanks; Sewage treatment; Ships; Tanks (Containers)
- Old TRIS Terms: Gas generating systems; Holding tanks; Shipboard sewage treatment
- Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00179820
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: DTNSRDC-78/041
- Files: TRIS
- Created Date: Sep 14 1978 12:00AM