Agriculture
August 16, 2024
Silva Digester Bundle – Paca digestora Silva
Read SolutionImplemented by
Guillermo Silva Pérez
Updated on January 28, 2024
·Created on October 19, 2020
Biodigesters equipped with Slurry Separation Technology (SST) designed for waste management.
Green Heat Biogas Digesters are equipped with Slurry Separation Technology (SST), which allows the elimination of waste, recycle water, create dry fertilizer, and produces biofuel to supply the customer’s energy needs.
Users can obtain this product through a Pay-As-You-Go model or by renting the appliances in monthly installments.
The target region includes all Developing countries
Target SDGs
SDG 7: Affordable and Clean Energy
SDG 3: Good Health and Well-Being
Target Users (Target Impact Group)
Household, Small and Medium-sized Enterprises
Distributors / Implementing Organizations
Green Heat, Clean Cooking Alliance
Manufacturing/Building Method
Unknown
Intellectural Property Type
Patent
User Provision Model
The biogas digesters are designed and built by Green Heat, after a free feasibility study conducted by the same company. Customers can request information through the company's website.
Distributions to Date Status
By 2017, 580 biogas digesters have been installed in Haiti and different countries across Africa.
Output energy product
Biogas
Average daily biogas production (m3/day)
Unknown
Description of waste source(s)
Human waste, animal manure and all organic detritus.
Waste input requirements (kg per hour or day)
Unknown
Description of other input requirements
This product uses rainwater, wastewater and urine as water input.
Other input requirements (amount per hour)
N/A
System dimensions (m)
Sub-surface digesters can range from 4 to 50 m3
Design Specifications
Green Heat Biogas Digesters use Slurry Separation Technology (SST), which separates the slurry from water, creating dry fertilizer and recycling the water within the digester for the biofuel generation. Depending on the customer's specific needs and capacity, fixed dome or portable, flexible balloon digesters are available. Fixed domes are widely used by schools and institutions with waste management purposes, while flexible balloon digesters are commonly adopted in households with biofuel generation purposes. The biodigesters can use rainwater, wastewater, and urine as input. Additionally, the SST system can be implemented in older digesters. Green Heat aims to build personalized biogas digesters, adapted to the customer's needs and capabilities. The SST system can also be integrated into traditional biodigesters.
Technical Support
Provided by the manufacturer.
Replacement Components
Unknown
Lifecycle
25 years
Manufacturer Specified Performance Parameters
This product targets to reduce water utilization by 80% with respect to other biodigesters, by recycling the water from the waste. The dry fertilizer created from the waste can boost crop yield by up to 270%. The energy saved by using biogas for cooking and heating is double than that of traditional digesters. Additionally, the use of biofuel generated by the digesters can mitigate or even eliminate the reliance on charcoal and wood, helping to reduce deforestation.
Vetted Performance Status
Unknown
Safety
There is a minor risk of explosion from methane build up.
Complementary Technical Systems
None
Academic Research and References
J. U. Smith, 2013, The potential of small-scale biogas digesters to improve livelihoods and long term sustainability of ecosystem services in Sub-Saharan Africa, Univesrity of Aberdeen, UK.
Compliance with regulations
Unknown
Evaluation methods
Unknown
Other Information
Infographics of this product and working principles. More on the green heat biodigester
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