DIGESTATE Treatment & Nutrient Recovery

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Anaerobic digestion is a sustainable and cost-effective method of converting organics into renewable energy biogas, but traditionally this technology has not provided a solution for capturing the nutrients trapped in organic wastes.

Tightening regulations have restricted land application as accumulated nutrients in the soil have been linked to surface and groundwater contamination. Worldwide, a race is underway to find new treatment technologies that allow biogas plants to recover nutrients while meeting regulations.

Using newly developed membrane technologies, BKT is now able to transform nuisance digestate streams into concentrated fertilizer products. By coupling this technology with traditional anaerobic digestion, it’s now possible to harness the full benefit of your organic waste by capturing energy, nutrients, and clean reusable water.

Our FMX™ anti-fouling membrane platform is specifically designed to handle high-solid, high-density, and high-viscosity anaerobic digestor effluent. Using vortex-generating technology, FMXmaintains membrane performance while filtering the most difficult digestates, including manures from dairy and hog farms, poultry litter, crop and food processing waste, rendering wastewater.

FMX™ pre-treatment will prepare digestate streams for rapid and hassle-free downstream processing through reverse osmosis, evaporation, precipitation, or other liquid transformations.

By completely separating suspended solids, FMX will allow you to:

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Recover Nutrients

FMX™ is the perfect pre-treatment for conventional reverse osmosis technologies that can concentrate the nitrogen and phosphorous trapped in digestate.

 
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Increase Biogas Production

Increase biogas production by up to 25% by returning undigested organic solids back to anaerobic digestors.

 
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