Janicki Bioenergy’s Advanced Vapor Recompression Distillation (VRD) system separates liquid waste streams – <1% to 15% solids – into distinct byproducts using proprietary and industry-proven technologies. This approach to treatment is extensible to many liquid waste streams, such as livestock manure, septic wastewater, and industrial liquid waste. JBE’s technology is a complete treatment solution in that, beyond just separating the solid and water, it also heats, sterilizes, and distills the constituent components. At the system output, the distilled reuse water is treated to desired quality standards, including those sufficient for environmental release, irrigation, reclaimed water, or wastewater treatment discharge. The solids produced by the JBE VRD are pathogen-free, achieve adequate vector attraction reduction, and are capable of being sold as a commodity in many cases. Even in cases where the solids cannot be sold, landfilling costs would be reduced due to the solids’ low contamination levels and reduced volume and weight. The JBE VRD’s nutrient recovery technology also enables the capture of a concentrated ammonia solution for certain waste streams that can be sold as a fertilizer.
ADVANCED VRD SCHEMATIC & OUTPUTS
Advanced VRD technology is transformational to manure management on dairy farms. Using our methods, farmers can achieve compliance with environmental regulation while accruing significant cost savings as well as additional revenue streams. With JBE’s VRD technology, manure will be efficiently distilled into 1) water clean enough to feed back to the cows, 2) dry, sterile and stable solids for bedding and/or soil amendments, and 3) concentrated liquid, organic nitrogen fertilizer.
Through implementation of this technology, the farm will recognize significant energy efficiencies from reductions in on-farm electrical and fuel use required during manure management activities such as wastewater storage, agitation, pumping and hauling, as well as associated labor and maintenance costs. Significant additional environmental and energy-related benefits include becoming a zero-discharge dairy, GHG reductions due to reduced storage lagoon wastewater volume, as well as displacement of inorganic fossil fuel-based fertilizers.
Current Alternative Technologies Expand AllCollapse All
Manure is collected, combined with wash and process water and pumped to storage lagoons until safely applied to fields as a fertilizer when the crops need the nutrients. Usually, little to no treatment happens prior to lagoon storage, and its contents remain contaminated by high levels of fecal coliform bacteria. Rain further dilutes the manure, adding as much as 2 to 5 times the volume of water to these lagoons. If improperly managed, manure stored in these lagoons can contaminate both surface and ground water with nutrients and pathogens.
Used on a small number of dairies, anaerobic digesters are effective at producing biogas, but do not completely eliminate fecal coliform bacteria nor provide nutrient recovery. They also require significant capital investment. Farmers generate limited income by combining other organic waste materials with the manure, which can significantly increase the amount of nitrogen and phosphorus produced when compared to manure alone. These added nutrients often force farmers to acquire more land and lower application rates in order to balance these additional nutrients with crop production—adding considerable time, effort and expense to the farmers’ bottom line.
Technology Comparison Expand AllCollapse All
VRD Benefits for Dairy Industry Expand AllCollapse All
By farmers due to recycled water use, reduced transportation & pumping costs.
For growers due to the use of a concentrated, N-rich fertilizer.
By growers due to the use of a pathogen-free, organic fertilizer.
To salmon & shellﬁsh habitats due to improved water quality.
For farmers to handle—waste is processed into consolidated outputs.