Nonpotable reuse: Development of health criteria and technologies for shower water recycle. (Reannouncement with new availability information)
The U.S. Army is evaluating recycle of field shower water as a conservation practice in arid regions and is seeking to define appropriate technologies and health criteria. Shower wastewaters at a military installation have been characterized in terms of physical, chemical and microbiological parameters. Two treatment technologies havebeen investigated. Microfiltration cartridges with a nominal pore size of 0.2 MU m achieved consistent removals of 75 15% of total organic carbon (TOC) and better than 99% of turbidity from synthetic shower water containing 50 to 100 mg/L of TOC as soap. An alternative treatmenttechnology utilized powered activated carbon and coagulation/flocculation/ sedimentation followed by diatomaceous earth filtration. A TOC reduction of 70 15% was achieved in three separate studies, although at a cost of 1 g/L or more of powered activated carbon. Revised quality criteria for recycled shower water have been developed with guidance from the National Research Council. Parameters which can practically be measured in the field are primarily associated with microbiological safety.
- Research Organization:
- Army Biomedical Research and Development Lab., Fort Detrick, MD (United States)
- OSTI ID:
- 104147
- Report Number(s):
- AD-A-241754/1/XAB; TRN: 52420081
- Resource Relation:
- Other Information: PBD: 1991
- Country of Publication:
- United States
- Language:
- English
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