Substrate Pretreatment Module



Flow-through biomass pretreatment module. Up to 8 m3/hour throughput

WiseSoil Feedstock Pretreatment Module (FPM) is a solution for increasing efficiency of biogas plants. Module is based on a proprietary technology, and can be installed as add-on before any digester. Anaerobic Digestion technology can be compared to digestive system, where FPM acts as teeth, chewing the food before it gets to the stomach. Module is compatible with any digester system with substrates up to 13% solids content.
Here you can see how feedstock looks like before and after treatment, provided consistently by the macerator and a pretreatment module:

Technology

WiseSoil technology integrates a few pre-treatment functions in a high-efficient, compact disintegration module that can be attached easily to a biogas digester for the flow-through operation.

Module disintegrates feedstock into small-size fractions by hydrodynamic treatment and cavitation, saturares it with microbubbles,  and pre-heats the substrate. The combination of all these processes makes feedstock highly reactive and most favorable for the reactor microflora environment, allowing for fast & full digestion that maximizes biogas yield. WiseSoil technology competitive advantage lies in a synergy of pretreatment processes. And as a result, it simultaneously accelerates substrate digestion & increases biogas yield.

Pretreatment effect was verified for a various types of feedstock during a number laboratory tests, including  tests by Bioklastr laboratory (Czech repubic), our own lab-scale biogas plant, and during pilots and installations, that are being launched on biogas plants since 2014. Some examples of the biogas production before and after processing by the pretreatment module can be found below.

Biogas production for the mixed straw - maize - manure substrate, as well as straw substrate, before and after treatment, was performed by Bioklastr Z.S. laboratory.  Biogas yield improvement for these samples reached 20-23%. Full report is available on request.



Moreover, WiseSoil technology turns hard-to-process lygnocellylosic  substrates (i.e., manure with fibrous inclusions, straw, etc.) into an available and valuable resource for biogas plant. Comparison of biogas yield for straw before and after pretreatment. Full report is available on request. 





Features

WiseSoil pretreatment module enables owners and operators of anaerobic digestion biogas plants to:

Pilots  and references

Please find the list of all references here

Biomass pretreatment system on the biogas plant in Germany (Lower Saxony) 
Prototype of the flow-through biomass pretreatment module on the pilots in Finland
Biomass pretreatment system on the biogas plant in Germany (Bayern region) 

Full-scale pilots showed WiseSoil module efficiency:

First pilot: 15th October - 1st December 2016, Biogas plant Boretice, Czech republic.

WiseSoil module was installed between 1st and 2nd digesters of biogas plant. Feedstock consisting of  mix of corn silage with manure with total solids content up to 12% was processed. As a result, methane yield was improved by up to 17%.
boretice  

Please find the list of all references here

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