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Alternative Methods – What is Solid-Liquid Separation?

by 5m Editor
1 January 2012, at 12:00am

The Livestock and Urban Waste Research (LUW) Team at the University of Illinois has modified a method for processing liquid pig manure, according to Swine Waste Economical and Environmental Treatment Alternatives (SWEETA).

Solid-liquid separation is a manure treatment technology that separates a portion of the solids from the liquid in slurry manures. Solid-liquid separation generally has been used in the last few years as a physical treatment process for animal manure, mainly for the improvement of its handling properties by taking coarse solids and fiber out of slurry.

Historically solid-liquid separation has been used for over 50 decades by municipalities to remove the solids portion of waste water to allow discharge of the separated effluent (liquid portion) into surface waters of the US Municipal waste water treatment systems (solid-liquid separation) remove up to 98 per cent of the total suspended solids contained in the waste water.

The LUW Team system has modified the typical municipal water treatment system to make the process affordable and effective for liquid swine manure. Solid-liquid separation is integrated into a manure handling system to: 1) recycle separated effluent as flush or recharge water, 2) reduce organic matter in the liquid fraction, 3) concentrate nutrients in the solid fraction, 4) make transport, handling and land application easier, and 5) reduce odour emissions.

Further Reading

- You can view the other articles in this series from SWEETA by clicking here.

January 2012
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