HiPoint can take the very best SRW and recycle the wood shavings for recycled hypoallergenic high volume high margin horse bedding.
So what can be done with the broken-down fibers and manure biomass?
By reducing the amount of time to compost HiPoint can successfully decompose horse manure, dust, fines, and water in five days. By adding enzymes and liquid carbon our soils, fertilizers, and pellets are high yield, high nutrient, and quick release products sold to retailers everywhere.
Pyrolysis biochar pellets
Biochar is a high-carbon, fine-grained residue that HiPoint produces through pyrolysis process; it is the direct thermal decomposition of biomass in the absence of oxygen (preventing combustion), which produces a mixture of solids (the biochar proper), liquid (bio-oil), and gas (syngas) products.
Anaerobic Digestion - Gas
A high bedding (wood/straw) ratio decreases specific methane yield but can increase energy output. By co-digesting foodwaste with horse manure provides a favorable altered nutrient profile. By separating large wood shavings also reduces technological issues like choking of pumps and pipes. HiPoint AD solution removes large wood shavings and comingles food waste for gas to grid production.
HiPoint Energy Project Profits
To maximize profits, we work with innovative solutions to reduce the hardware costs of Anaerobic Digestion, pelletization, ammonia extraction, and pyrolysis technologies.
Then maximize LTV of land costs through Opportunity Zones in rural areas under the USDA rural zone map. HiPoint can focus on gas production to the pipeline when build costs are reduced through technology and incentivized through USDA guarantees, New Markets tax credits, and county conduit bonds.
By collecting RINS & e-RINS* plus low carbon credits to maximize profits HiPoint can reduce the hefty tipping fees for feedstock that burden many energy projects profitabilities.
Traditional long-term hauling and farm contracts for feedstock and long-term 10 years + offtake agreements for energy sales are vital to success.
HiPoint believes the future of natural compressed gas production is for fuel transfer charging stations and their networks through the adaptation and reliability in electric car growth and the low carbon economy mandates. Thus leading to higher profits wider reach and longer contracts.
*Electric Renewable Identification Numbers, or e-RINs, would be generated by recharging an electric car using the electricity generated from power plants that burn biogas. Biogas is natural gas derived from waste and manure.
Have a location in a high equestrian region for an Energy project? Email us at email@example.com
All manures are not created equal.
The most common error found when collecting data was not understanding the difference between raw manure and blended "stall residual waste bedding." For example, dairy manure starts at 10% solid (manure and bedding material) and the rest is liquid. When it is further flushed with water to clean the barn, the manure and water solids content is reduced to 2-4% (96% water) before it enters an anaerobic digester. Horse manure, on the other hand, averages around 50% moisture, when mixed with urine-soaked used bedding.
To maximize methane in AD with horse manure we need to add a lot of water to optimize methane yield. Plus a balance of the carbon to nitrogen ratio (C:N) will maximize yield in the anaerobic digestion.
Additional microbiology has shown that specialized bio-culture enzymes result in optimizing yields.
By adding other manure livestock waste (dairy and poultry) along with vegetable waste to the Horse manure can manage the C:N ratio and create the highest methane extraction
KEY STATS ON HORSE MANURE
- Horse manure (buns) contains 50-80% undigested hay and
- Around 70- 80% of horses are bedded on wood shavings in North America.
- A stalled horse creates 1 ton of waste bedding/month.
- North America has 3 million tons of waste bedding/month.
- Energy conversion from methane production was calculated at 5 G.J. per horse per
- In a single year, the average horse excretes approximately 33 lbs of calcium, 23.1 lbs of phosphorus, 6.5 lbs of magnesium, 1.5 to 3.3 lbs of sodium, and 35.2 lbs of potassium with 88% of that potassium in the urine.
PUBLISHED DATA ON METHANE
- Anything lower than 5oC eliminates methanides
- Aeration and cooling reduce methane
- Cold manure reduces methane off-gassing.
- Covered storage reduces methane
- Lower GHG (Greenhouse gasses) improves air and water
Methane Potential and Energy Production from Anaerobic Digestion
The methane potential from horse manure (shavings and manure) is 6 -105 kJ/metric tons wet weight with a methane production of 200 mL CH4/g VS, at a retention time of 30 days inside the AD. It can be demonstrated that using 75% shavings and 25% manure or (4:1 used shaving) per day, the cumulative methane production is upwards to 400 ml/day maintainable. This is comparative to dairy cattle manure which has a methane potential of 250-500ml/day.
HiPoint research suggests that separating the lignocellulosic biomass (shavings) and volatile solids (manure) so that they can be processed independently created higher quality biomass for energy reuse. This evidence illustrates that horse manure's methane potential could be higher than dairy manure. The final energy conversion from methane production is calculated at 5 G.J. per horse per year.
Energy Variables and Potential from Horses
Environmentally there is a critical need to move to a new low carbon economy and away from fossil fuels, to protect the sustainability of the environment. and A study by William Martin-Rosset, (Ph.D. head of equine nutrition), has reported that approximately 50 pounds of methane gas are emitted per horse per year. IPCC standards (Intergovernmental Panel on Climate Change (who created the national estimate of methane emissions)) show that a 550 Kg horse produces18Kg/year methane with a 30% variance.
What our Facility can produce and provide.
From a HiPoint Facility recycling 59,000 tons of waste stall residuals (5000 horses) we can reduce methane off-gassing by 250,000 lbs and harness it for energy while simultaneously decreasing global warming.
For every 100,000 horses we can redirect stall residual waste we can save and reuse 58 million pounds or 29,000 tons of Methane.
Horse manure has an energy potential of 5 x 105 kJ/metric ton wet weight or 1.3 x 105 kJ/metric ton wet weight heat at 35oC (non-thermophilic). This amounts to 2.87 to 5.73 GJ (106 kJ) generated by each horse per year (Wartell 2013.) Through multiple calculations and studies, HiPoint settled on using the energy value from a horse at 5 GJ per year
Therefore, recycling the stall waste from 2,500 horses could harness and create 10,000 GJ of energy per year. A typical home consumes between 50 to 80 G.J. per year for heating (Wartell 2013).
Anaerobic digestion of horse manure is relatively uncharted territory. Interestingly, when horse manure is composted in anaerobic digestion correctly, it can create methane levels close to that found in cows. We believe that the advantages of using AD as a standard practice in areas with a high population of humans and horses is essential. Furthermore, with the decreasing options for disposal of horse bedding, AD solutions are expected to rise in popularity and be more advantageous in the life cycle of zero waste.
The temperature in the digesters is set at the optimal temperature of 104oF so that the naturally occurring bacteria found in the manure can feed and multiply. This mixed with enzymes and methanides that produce the biogas is collected in balloon-like rubber caps. This cap creates sufficient pressure to move the gas to be captured scrubbed and produce LNG gas for gas lines or for CHP (combined heat and power) and in turn to produce electricity.
HiPoint research labs have reported that a horse produces 50 lbs. of methane per year and can create 5 G.J. of energy. We conclude that raw manure separated from the wood fiber stall residuals is an excellent substrate for methane production BioCNG, (alternative fuel/gas) BioChar, (a charcoal-like substance burned in a controlled process called pyrolysis), and Organic fertilizer or soil amendment.