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. Mainstream Engineering proposes a solution that integrates multiple well-defined technologies, suitable for small-scale applications, into a system that meets the objectives set by the Army. In Phase I, Mainstream will design and fabricate a greywater recycling system capable of producing water suitable for reuse in field kitchen sinks. The continuous system will be optimized and a full-scale prototype will be designed. In the Phase I Option, Mainstream will fabricate an initial full-scale prototype with preliminary electronics and automation, and also perform life testing on the bench-scale unit. During Phase II, Mainstream will perform rigorous field testing, and expects to deliver a field-ready unit at the conclusion of Phase II.