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generating electricity from organic waste

Paragon-e. Creating energy from organic waste.

Our goal at Paragon-e is to efficiently utilise the energy content of organic waste to create a valuable renewable energy source.

By turning waste into value, Paragon-e is a leader in the reduction of harmful carbon emissions by offsetting fossil fuels and utilising a carbon-neutral replacement fuel.

Our designs offer an efficient, eco-friendly solution to the demand for alternative and renewable sources of energy.

At Paragon-e we focus on ways to reduce, reuse, and recycle as part of a responsible future and a step toward eliminating global dependency on fossil fuels.

Get in touch:

Paragon Efficiencies Ltd.,
14 City Quay, Dundee,
Scotland DD1 3JA
tel +44 (0)7540 269 245

email us

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Why Use Our Technology & Services?

We can design and deliver a compact biogas installation with a reliable and steady process performance, which achieves very high organic conversion rates.

  1. Conversion rates and biogas production figures, measured under standard laboratory conditions, are delivering >95% in our full scale installation.
  2. Organic solids loading rates of up to 6 kg/m3 digester volume per day.
  3. Allowable dry solids % in the digester feed mix of up to 30% average.

We can offer the following services:

  • preliminary study/evaluation
  • support in the supplier selection/design process
  • full design package
  • procurement package
  • build or build & operate

Proven Performance

our operational uk site :
Energen Biogas, a joint venture with Shanks plc.

• Capacity of 85,000 tonnes per year @20% dry solids

• Processing all types of food wastes (dry & liquids)

Energen Biogas website →

Energen BioGas plant

01 Waste Pre-Treatment

Correct setup of a waste pre-treatment line guarantees:

  • adequate separation of eventual contaminants in the feedstock
  • maximized recovery and usage of the organic fraction in the digestion process.
  • minimum external water usage and minimized digestate disposal volumes.

02 Top Mixer Digester Design

A key factor for the digestion performance is a good mixing process, resulting in sufficient contact between food (waste) and the biomass in the digester.

Our top mixer concept offers the following advantages over other available mixing techniques.

  • Intensive mixing with extremely low electricity consumption. For example the installed power for a 4,000 m3 digester would be ±25 Kw.
  • Significantly reduces the potential of floating layers or settling layers in digester.
  • Allows a large range of dry solids concentration, which means flexibility for changes in waste inputs, which enables a higher loading range for the digester.

03 Design & Operating Deliverables

Our technology and overall design is based on actual operational experience gained in the field of Anaerobic Digestion.

  • Functional design, with careful consideration in the choice and quality of materials and equipment.
  • Excellent knowledge of operational costs.
  • Excellent knowledge of high efficiency CHP units and green gas purification systems.
  • Fully automatic process control system, with focus on operational management requirements.
  • Standardised commissioning & start-up programme, including a training programme for operational personnel.
  • Experience with handling and digesting a wide range of commercial and industrial waste streams.
natual, eco-friendly process

Producing 100% renewable energy – Anaerobic Digestion (AD) is a natural, clean, ‘green,’ environmentally friendly process.

What is Anaerobic Digestion?

It is a natural biological process where organic matter is broken down by bacteria in the absence of oxygen to produce biogas for renewable energy.

It is a fully proven commercial process which when combined with a Combined Heat and Power (CHP) unit it will generate electricity and heat for export and a liquid bio-fertiliser that can be used for application on land.

The AD process takes place in an airtight container, known as a digester.

The first stage of AD is a natural chemical reaction called hydrolysis, where complex organic molecules are broken down into simple sugars, amino acids, and fatty acids with the addition of hydroxyl groups.

This is followed by three biological processes:

  • acidogenesis – further broken down by acidogenic bacteria into simpler molecules, volatile fatty acids (VFAs) occurs, producing ammonia, CO2 and hydrogen sulphide as by-products.
  • acetogenesis – the simple molecules from acidogenesis are further digested by bacteria called acetogens to produce CO2, hydrogen and mainly acetic acid.
  • methanogenesis – – methane, CO2 and water are produced by bacteria called methanogens.

After this natural process we have 2 key products:

biogas,’ which we use to produce green energy. It is carbon positive, because the CO2 released from ‘biomass’ when it is digested is reabsorbed by plants grown to replace it; and:

bio-fertiliser,’ which is used on farmland. The bio-fertiliser contains Nitrogen, Phosphates and Potash and is used to replace expensive mineral fertilisers. The bio-fertiliser also contributes to the organic matter content of the soil, enhancing biological activity, availability of nutrients and water retention.

The Benefits.

Paragon-e can deliver cost-effective, sustainable solutions in modern waste management. By using food waste as a fuel, Anaerobic Digestion has a key role to play in helping replace fossil fuels and cut harmful emissions from landfill sites.


Typical waste types:

  • Packaged food waste
  • Local authority kerbside collection food waste
  • Kitchen food waste from hotels, restaurants, schools, etc.
  • Food processing industry waste (dry & liquid)
  • Food and drink obsolete/surplus stock
  • Animal by-products

However, there are many other types of liquid or solid waste types not mentioned above which we can refine and process to produce biogas.

Climate Change Legislation.

A biogas plant meets the objectives of climate change legislation because it prevents the uncontrolled emission of methane and carbon dioxide to atmosphere, because it enables organic waste to be recycled as a fertiliser, reducing the need for artificial fertilisers and because it produces a renewable energy which is able to replace fossil fuel.

Unlike fossil fuel combustion, controlled and managed biogas production from biomass is considered carbon neutral and as such does not emit greenhouse gases into the atmosphere.

By sending these types of wastes to a biogas facility, waste to landfill is reduced and greenhouse gas emissions are therefore reduced. It's easy to do and a great benefit to our environment.

Landfill is a waste – biogas is a resource.

In addition to the reduction in landfill disposal costs, Anaerobic Digestion is a carbon positive and odour free process with environmental benefits, namely an overall reduction in your greenhouse gas emissions. This helps your business to comply with government legislation and contribute towards global environment protection.

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