animal and poultry
waste management research:
a progress report

Polymer Enhanced Swine Solids Separation
Evaluation/Demonstration Project

Separating the solid portion of waste from a swine building and allowing only the liquid portion to enter a waste lagoon is considered desirable because fewer nutrients end up in the lagoon and the solid waste may be more easily converted to a value-added product. This project is an evaluation of a system designed to separate solid and liquid waste. The system employs a rotating screen separator, while separation is enhanced with the addition of nontoxic, food-grade cationic polymers. The polymers should increase flocculation, the clumping together of solids. While solids may have a number of uses, in this case they are to be fermented, then used as an ingredient in cattle feed.

Funding: $35,006
Project Duration: 12 months
Project Began: April 23, 1997
Location: Nash Johnson Farm, Bladen County N.C.
Assessment: Not yet available

Investigators: Dr. Diana M.C. Rashash, area specialized agent (environmental education), Onslow County, North Carolina Cooperative Extension Service, phone: (910) 455-5873, fax: (910)455-6767, email: DRASHASH@ONSLOW.CES.NCSU.EDU; Dr. Kelly D. Zering, associate professor and extension specialist, Agricultural and Resource Economics, North Carolina State University, phone: (919) 515-6089, fax: (919) 515-6268, email: KELLY_ZERING@NCSU.EDU