Greywater Recycling System Incorporating Medialess Self-Cleaning Inertial Rotary Disk Technology

Period of Performance: 01/27/2009 - 07/27/2009


Phase 1 SBIR

Recipient Firm

Innovatech, Inc.
155 Kitty Hawk Drive
Morrisville, NC 27560
Principal Investigator


The objective of this project is the design, fabrication, testing and evaluation of an affordable, efficient greywater recycling system for Army mobile field kitchens/sanitation centers. The proposed system utilizes a medialess self-cleaning rotary disk particle separation technology to reduce turbidity and suspended solids, in conjunction with an aerator flotation/surface skimmer to remove fats, oil and grease (FOG), as well as a regenerable activated carbon filter to eliminate dissolved organics, with additional thermal input to inactivate bacterial coliforms. Target recycled greywater effluent performance goals are: BOD 5-day 1000 systems), minimal maintenance/consumable parts, easy set up, operate in basic hot and cold environments (weatherized), and operate safely by non-technical dishwashers. This system will be compared/contrasted with other types of conventional filtration systems. Although the Phase I system will be manually operated, the optional transition phase will allow full automation of the system while maintaining technical performance objectives.