In 2017, Spain’s Depuporc entered into a long-term licensing agreement with OriginClear to incorporate EWS and AOx technologies into its swine manure waste-water treatment system.
OriginClear’s EWS:AOx were determined to be the best final stage for clarifying the flow of manure water and removing the ammonia. The Depuporc process incorporating EWS and AOx technology takes place in several stages with separate holding tanks. The early stages are conventional, as employed by Depuporc for decades.
- Manure and waste water flows or is transported from the hog farm to the first stage holding tank, where it’s homogenized with agitators and chopper pumps.
- Manure water is then pumped to a conventional vertical screw press separator with a compacting module. Separation of solid manure particles from the manure water is accomplished. Water is sent to a second stage holding tank on one path. Relatively dry manure is discharged down a different path.
- Manure water is pumped to the second stage holding tank through a self-cleaning micro-filter. Manure laden water is recycled in the second holding tank, while cleaner manure water is sent to a third holding tank.
- From the third holding tank, manure water is pumped to the OriginClear EWS tank. The EWS tank’s electrochemistry process coagulates the smallest particles of manure and floats them to the surface for separation. At this stage, the manure water is essentially free of all suspended solids.
- Water is pumped into the AOx tank where extensive electrode racks generate oxidizing agents such as ROS. These can be hydroxyl radicals, ozone, hydrogen peroxide, hypochlorous acid and chlorine.
- Next, the water is pumped to the final effluent tank for reuse directly in the livestock barn or it’s pumped out for irrigation.
- Manure laden water requires multiple stages of separation to remove all suspended solids. Without the removal of the suspended solids, the oxidizing agents generated in the AOx stage would oxidize the suspended solids rather than the dissolved organics, such as ammonia.
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