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Gray Water - Black Water Knowledge Resource

The mission of the Grey Water/Black Water Knowledge Resource is to provide knowledge creation and sharing throughout USACE in the area of grey water and black water recycling systems. Grey water recycling systems receive discharge from bathtubs, showers, lavatories, clothes washers and laundry sinks. Grey water systems can be located at individual buildings, or gray water can be piped to a central treatment system from a group of buildings. The recycled water can be used for flushing toilets and urinals, and irrigation. Black water recycling involves the treatment of effluent from waste water treatment plants to a higher level of sanitation and then redistributing the water through purple piping systems to be used for flushing toilets and urinals, and irrigation. The Knowledge Resource can assist in a Life Cycle Cost Analysis to determine applicability and feasibility of these systems. When the systems are appropriate the grey water/black water Knowledge Resource can provide support in system design for treatment and piping distribution.

Contact: Water_Efficiency@usace.army.mil

Photos

Soldiers remove dirt and potential plant propagules from Humvee. Using a high pressure low volume wand ensures minimal water utilization and maximum debris removal. Effluent for this facility is recycled through a grit chamber, oil chamber, and through a series of sand and membrane.
Soldiers remove dirt and potential plant propagules from Humvee. Using a high pressure low volume wand ensures minimal water utilization and maximum debris removal. Effluent for this facility is recycled through a grit chamber, oil chamber, and through a series of sand and membrane.
New wash rack, efficiently captures and treats water for re-use. The washrack has a combination of high pressure low volume and low pressure high volume wands for utilization by the troops. All water from this system is quickly processed to minimize evaporation and water loss within a contained system.
The Tactical Vehicle Wash Rack at Fort Hood was originally installed in 1987. The wash rack was designed to treat off-wash through a series of grit chambers, and settling basins for re-use while capturing and using rainwater in the primary lagoon.
The Tactical Vehicle Wash Rack at Fort Hood was originally installed in 1987. The wash rack was designed to treat off-wash through a series of grit chambers, and settling basins for re-use while capturing and using rainwater in the primary lagoon.