Anaerobic Digestion Basic Information about AD
Anaerobic Digestion UK News
UK anaerobic digestion is at an interesting point in its evolution. It is possibly poised on the brink of a huge expansion, but nobody can be sure. For 3 years the UK political scene has been obsessed with debating Brexit and little else has been done. With a general election in December 2019, we thought we would write about the news for anaerobic digestion.
Stop Gap Funding Urged to Support the Rollout of Biomethane Plants
Chancellor of the Exchequer Sajid Javid has been urged to provide stop gap funding to support the rollout of biomethane plants when the Renewable Heat Incentive scheme expires in 2021.
In a letter submitted to the Treasury, ahead of the scheduled date of next month’s Budget, the Anaerobic Digestion and Bioresources Association (ABDA) has called for action across government to more effectively support the process, which traps the methane created by organic waste.
It says that it is ‘critical’ that there is a commitment of additional support for the anaerobic digestion (AD) process beyond March 2021, when the RHI is due to end, including an interim pot of funding for deploying biomethane plants.
The letter says this support is necessary while a future funding mechanism is developed because existing tools are not fully fit for purpose. For example, while the Contracts for Difference provide support for larger AD plants, many in the sector are small. via www.edie.net
Anaerobic Digestion Needs Urgent UK Government Clarification of Financial Support if the UK is to Achieve Net Zero Emissions by 2050
Anaerobic digestion (AD) is currently recognised for its role in generating green energy, but it also prevents methane emissions from organic wastes left to break down in landfill. There is currently a huge untapped potential for methane capture, use and conversion with millions of tonnes of organic wastes from farming, food and sewage currently not being treated through AD. In addition, AD treatment of organics recovers nutrients to fertilise depleted soils and improve their ability to sequester carbon.
The Treasury has been tasked with coordinating government efforts to achieve Net Zero emissions by 2050. Good cross-departmental policy coordination is therefore essential to enable the industry to grow and achieve widespread emission abatement.
Government must clarify its financial support as a matter of urgency, especially as around 70 LAs will be signing new waste contracts in the time period leading to the separate food waste collections implementation deadline.
The Government must support AD innovation to make it financially autonomous. via www.renewableenergymagazine.com
Anaerobic Digestion Screening System Proposed Using 3D Printed Mini-Bioreactors
Research work has demonstrated the use of mini AD systems for high-throughput process screening to improve AD systems and has been successful. The excessive amounts of biowaste and wastewater produced in our society need to be taken care of properly. Better performing AD reactors contribute considerable to the sustainable treatment of biowaste and wastewater.
Today, anaerobic digesters are used as systems for treating waste, with bioreactors usually available in a variety of different shapes. The devices are not only used to handle waste with the help of microorganisms, but they are responsible for producing ‘high-value products' like biogas and biofertilizers.
Reactors may be large-scale, on the magnitude of a plant-scale reactor, or smaller. The authors explain that there is a need for reactors on the micro- or mini-scale as anaerobic digestion processes become miniaturized. During that process, sensory data can be increased—but maintained in a relatively small area—saving money and energy. Geometric integrity continues with the downsizing, which is sometimes referred to as isometric scaling—while other elements may not scale in a similar fashion (allometric).
"The results demonstrated that AD in low working volumes was feasible and efficient in terms of biogas quantity and quality. The results also established links between scale-down and process stability," stated the authors. via 3dprint.com
Worldwide Anaerobic Digestion Developments
Investment Progress Made North American Biogas Facilities
Organic waste is traditionally either incinerated and emitted as an environmental pollutant or left in a landfill where it rots and releases methane, a harmful greenhouse gas that contributes to climate change. Through the use of anaerobic digester technology, Bioenergy DevCo offers an environmentally smart, proven technology to break down biodegradable waste materials naturally, using microorganisms. This natural chemical process creates two important products at an industrial scale. First is renewable natural gas, which can be burned cleanly and turned into a versatile source of renewable energy by being injected into a national electric grid or used as a transportation fuel as compressed natural gas.
Second, is a product called digestate, an organic soil amendment with the same organic and storm water management capability as compost.
"With this investment, we are pleased to support expansion into North America as we continue to work independently in Europe to advance the adoption of this technology, expand anaerobic digestion know-how and strengthen the financial soundness of waste-to-energy projects," said Jeff Henslin, CEO of BTS Biogas. via finance.yahoo.com
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