Substrate Pretreatment Module

Flow-through biomass pretreatment module with 30m3/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, and starts from only € 10 000!
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 five pre-treatment functions in a high-efficient, compact pre-treatment module that carries out 5 pre-treatment functions on feedstock and can be attached easily to biogas digester feed lines.

Module disperses feedstock into small-size fractions, minimizes disruption of the bacterial environment inside the digester by deoxygenating, non-thermal hygienisation and preheating of feedstock. 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.




Comparison of biogas yield before and after pretreatment for grain substrate. Full report is available on request.

Moreover, WiseSoil technology turns hard-to-process 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

The first pilot was performed in biogas plant in Orenburg, Russia. Pilot was launched on biogas plant, owned by a Komplesu LLC, in 21-23 September of 2014. Biogas plant UGB-25 is located at the site and has a throughput of 1.5 — 2 tons of feedstock per day. Plant uses food scraps and liquefied cow manure as a raw materials for digestion. Pilot included assessment of the efficiency of organic feedstock processing with WiseSoil pretreatment module, and a comparison of biogas yield from the UGB-25 biogas plant from initial and pretreated feedstock. The results are as follows:

Batch biomass pretreatment module with 50 tons per day throughput
Flow-through biomass pretreatment module with 10m3/hour throughput
Biomass pretreatment module prototype trials on biogas plant in Orenburg

Full-scale pilots showed WiseSoil module efficiency:

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  


Full-scale pilot was performed first to fifth November 2015 in Kirov, and tenth to fifteenth November 2015 in Chelyabinsk.

As a result, manure with massive fibrous inclusions was turned into substrate for biogas plant, and biogas yield increased by 70-95%.

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