United States Department of Agriculture – MAPHEX

Home / Catalog Entries / United States Department of Agriculture – MAPHEX

United States Department of Agriculture – MAPHEX

Agricultural Research Services

Company Description:

U.S. Department of Agriculture scientists and their collaborators have developed a mobile system for removing phosphorus from cow manure that may offer dairy farmers greater flexibility in where, when, and how they use the nutrient to fertilize crops.

Technology Description:

The technology included in the MAPHEX system includes a mounted auger press, centrifuge, vacuum-filter unit, and other components atop two trailer beds so that the entire system could be driven to a farm and operated onsite, either on a daily or rotational basis depending on the size of the dairy operation.

The system can service 10 small farms on a 10-day rotational basis. On a larger farm, such as one with 2,000 cows, the system could operate over 24 hours. MAPHEX works quickly. In about 10 minutes, for example, it can extract 99 percent of the phosphorus from 250 gallons of manure. It also removes the odor from the manure.

United States Department of Agriculture USDA,REE,ARS,NAA,PS&WMR CURTIN ROAD, BLDG 3702 UNIVERSITY PARK, PA USA (814) 863-8760 Visit Company Website

Technology Type

  • Centrifuge

Vendor

  • Consultant

Product

  • Concentrated Nutrients

Problem

  • GHG
  • Nitrogen
  • Odor
  • Phosphorous
  • Storage

To view additional information about this vendor, click below.

Technology Strengths, Weaknesses and Critical Indicators

Centrifuge Technologies remove the non-dissolved particles from the waste stream typically resulting in a lower solid liquid that will not plug equipment or irrigation quality “tea water” depending on whether the technology is used with or without polymer:

  • Produces a stackable solid which is high in phosphorus and with significant amounts of organic nitrogen.
  • There is significant variation of energy use depending on the site and by technology
  • There is significant variation of operational intensity depending on site, use of polymer, and by technology
  • There is significant variation of cost depending on site, use of polymer, and by technology
  • Can be used with or without polymer. Recovery rates and impact on critical indicators are better when used with polymer.
  • Proven technology for nitrogen recovery, phosphorous recovery, storage reduction, GHG reduction, and odor control

Newtrient Comments/Opinions:

Suspended solids/phosphorus recovery technologies:

  • Produces a concentrated source of phosphorus from a renewable source
  • Include belt presses, centrifuges, dissolved air flotation systems and others
  • There is significant variation of chemical and energy use by site and by technology
  • There is significant variation of operational intensity by site and by technology
  • There is significant variation of cost by site and by technology
 
The MAPHEX team began demonstrating its patent-pending system on a working dairy farm this September and welcomes inquiries on its commercial potential. ARS is USDA’s principal intramural scientific research agency and is actively seeking partners to license this technology.   MAPHEX has not been evaluated using the Newtrient's 9-point scoring process because the technology is not yet commercially available.  

Disclaimer: Newtrient has collected the information and photographs on this page from public sources including the vendor’s website and promotional material in accordance with Section 107 of the Copyright Act 1976, allowance for "fair use". All vendor product and company names are trademarks™, registered trademarks® and/or trade names of the respective vendors or their licensors. Unless otherwise noted, Newtrient is not associated, connected or affiliated with, or sponsored or endorsed by, any vendor or licensor of such trademarks and trade names. See Terms of Use for details.

1. OPERATIONAL HISTORY