Development of a Greywater Recycling System for Army Field Kitchens

Field Sanitation Centers typically convert 240 gallons of potable water per day into greywater. This greywater must then be transported off-site or properly disposed of on-site. To alleviate this problem, a continuous process to treat the greywater produced is needed. The treated water must meet secondary treatment standards, and the processing system must be rugged, easy to use, consume less than 1 kW of power, occupy approximately 1 yd3, and use minimal consumables. During the Phase I effort, Mainstream Engineering demonstrated a continuous full-scale breadboard system that produced 20 gal/hr of cleaned water and consumed less than 1 kW of power. In Phase II, Mainstream will package and automate the full-scale system tested in Phase I. This first-generation greywater recycling system will be thoroughly tested by the Army and Mainstream. Based on these results, a second-generation pre-production unit will then be designed and fabricated. This unit will be tested to ensure all of the Army"s requirements are met and it will be delivered to the Army at the conclusion of Phase II. Mainstream will also develop manufacturing and commercialization plans in Phase II so Phase III commercialization can occur additional development costs.