Evaluation of a fine-mesh screen, manure treatment technology during Manitoba conditions

Project: MLMMI 2013-01


The primary project objective was to test the P-removal efficiency of the commercially available, Salsnes fine-mesh screen system under varying manure conditions without the use of flocculants.


Lorne Grieger
Prairie Agricultural Machinery Institute (PAMI)


Status: Completed
Started: 2013-03-05
Completed: 2013-05-30

Funding Partners: “This project was supported by the Manitoba Livestock Manure Management Initiative (MLMMI) and the Manitoba Pork Council. MLMMI is funded by the Canada and Manitoba governments through Growing Forward, a federal-provincial-territorial initiative.”

Amount Funded: $132,500.00
Performer Funded: $0.00
Total Cost: $132,500.00


Final report: April 23, 2014


Note to Reader concerning Phosphorous Redistribution Projects

In order to comply with current provincial manure management regulations, livestock producers in phosphorus surplus areas of Manitoba have to implement ways to redistribute nutrients to phosphorus deficient areas. The Manitoba Livestock Manure Management Initiative (MLMMI) is undertaking a series of projects to find effective affordable solutions for producers. This report is one of these projects.

All options available to producers in phosphorus surplus areas are under consideration. These include but are not limited to manure separation, manure handling and storage, and liquid manure transportation. This report is only one of many options that are under consideration.

This project evaluated the use of a Salsnes micro screen filtration system to treat liquid swine manure on a commercial farm during March and April of 2013. Trials were performed using three different filtermesh sizes (90, 158 and 340 micron) at various flow rates.

The Salsnes filtration system achieved an average percent P removal of 18.7% for all trials, and removed between 25-27% of the solids at low (<3%) manure dry matter concentrations going into the system nad 26-32% of the solids at higher (>3%) solids content.

P removal results may vary under different conditions as it appears that the influent manure composition can affect the P removal effectiveness.


Final Report

Manitoba Pork represents 614 Manitoba hog farms