The ambition of BioGAS+ of Applied Nanoparticles is to help solving the underperformance of Anaerobic Digestion (AD) plants by introducing the first innovative additive based on iron nanoparticles for outstanding energy production enhancement and/or preventing inhibition disaster in biogas digesters.
BioGAS+ goes far beyond the state-of-the-art and contribute to a circular and distributed economy within the European Union and worldwide. The aspiration is to transform waste into appealing raw materials in an efficient and sustainable way so that biogas production is converted in a profitable market capable of competing and surpassing fossil fuels based economy effectively.
BioGAS+ is the first ready to use additive based on safe and sustainable engineered iron nanoparticles directed to the optimization of anaerobic digestion processes and,
consequently, the increase of biogas production.
BioGAS+ innovative patent and strategy is based on results showing that engineered iron nanoparticles (FeNPs) can optimize anaerobic processes enhancing the production of biogas, due to their denseness, chemical composition, crystal structure, nanometric size and high reactivity.
Applied Nanoparticles offers a nanotechnology-based innovation to anaerobic digestion, that obtains the highest ever-reported improvement of biogas production (triple the biogas yield with cellulose as feedstock in laboratory conditions, among other significant benefits).
It is known that addition of Fe ions to an anaerobic bacterial reactor can increase methane production, however introducing such ions can give rise to toxicity and excess reactivity. Those problems are solved with BioGAS+ iron nanoparticles (NPs).
Iron NPs can be designed to provide ions in a controlled manner (corrode and dissolve as ions provider). A unique Fe optimized dosing source because of their denseness, nanometric size and reactivity. Thus, the process that converts organic waste into raw matter for energy production is optimized by simply adding a small dose of iron NPs to either a large waste treatment reactor, a septic tank or a homemade biodigester.
Nowadays the critical advantages of anaerobic digestion are countered by unsustainable approaches to the biogas production and the dependence on fluctuating subsidies. Applied Nanoparticles product, the trace element supplementation BioGAS+, can triple the biogas yield. This unprecedented performance is an economical boost that changes the current uncertain biogas market situation, fostering a sustainable and profitable biogas production.
In conditions of anaerobic breakdown (absence of oxygen) small doses of mixed iron oxide nanoparticles (NPs) serve as a catalyst that stimulates bacteria metabolism and accelerates the production of biogas (a mixture of different gases produced by the breakdown of organic matter in the absence of oxygen, mainly CO2 and CH4).
From a technical (and economic) perspective is of upmost importance the dossing of BioGAS+. And dosing have to be closely linked and tested against efficiency (in terms of additional methane production per TN of feedstock treated).
The first test reported a concentration ratio of 10% (for 1 Tonne of feedstock/100Kg of BioGAS+). Afterwards our R&D reached a 1% dossing (for 1 T of feedstock/10Kg of BioGAS+). The last test results report an optimal concentration of 0.1% (for 1T of feedstock/0,1Kg of BioGAS) with a methane ratio increase of 30%.
A methane ratio increase of 30% is far above any known technology aimed at increasing biogas production. This is the reason why BioGAS+ have to be considered a disruptive technology.
Although the unprecedented methane ratio increase is the most appealing advantage of BioGAS+ is only one of the advantages reported. Those differential advantages are:
* Improving biomass to biomethane conversion efficiency.
* Increase in both biogas and biomethane production.
* Better biogas composition (higher methane share).
* Solution to inhibitory substances. Rescue digesters with problems.
* Additive (it does not require any change in the biogas plant industrial process).
* It does not require pre-treatment of the substrate/feedstock or maintenance to preserve the microorganisms.
* Reduction of the digestate fraction.
* Higher waste degradation.
* Increase digestion process stability (more reproducible).
* Acceleration of the digestion process. Reduction in retention/residential time.
* Proven to reduce H2S levels (precipitated in the form of pyrite).
* Reduction on the amount of foam produced.
* Enrichment of the residual material (digestate) with iron ions to obtain by-products with increased economic value such as high quality fertilizers.
* Enlargement of biomass feedstock (oil, fat, meat) as it has been proved suitable for “difficult to digest” (recalcitrant) feedstock
* Enlargement of biomass feedstock (oil, fat, meat) due to the increased biogas/methane production.
* Can be used with any kind of anaerobic digester.
* Reduce AD plant energy consumption.
* Minimize undesirable side effects in biogas plants such as the odours associated to HS and NH3, thus reducing the cost of associated conditioning measures.
* Precipitation (recovery) of phosphorus (in the form of ferric and ferrous phosphate).
* Disinfection of pathogens and multi-resistant bacteria.
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