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Giving Back to The Land

We use waste that’s collected from homes, businesses and local authorities across the UK and through the process of anaerobic digestion, turn it into a rich natural biofertiliser which can be used as a replacement or to complement the chemical fertilisers used on farmland.

Biofertilisers (the name for digestate which has achieved PAS110 certification) are created as an end product of the anaerobic digestion (AD) process. The use of these high nutrient biofertilisers replaces the use of fossil-fuel derived fertilisers and ensures a complete loop of carbon and energy capture.

The benefits of using digestate

Biofertilisers are like rocket fuel to plants and is applied to crops as varied as barley to potatoes and wheat. In a circular loop these crops then feed back into food production, reducing the carbon footprint along the way.

Many farmers will see the costs associated with the purchase of fertilisers, dramatically decrease following the adoption of this rich nutrient filled digestate, often saving thousands of pounds a year compared to chemical fertilisers.

In addition to the financial benefits associated with using biofertilisers, they’re also used to generate healthy soil. This nutrient rich, healthy soil promotes good growth for plants and, in turn, is great for animal feedstock.

The process of using Biofertilisers

Biofertiliser is stored until there is crop demand for fertiliser, either before crop establishment or on to an established crop. Only low nitrate and ammonia emission spreading methods such as dribble bars or shallow injectors are used. Application is only to crop requirements and observing all relevant spreading legislation and best practices.

With a typical analysis of 5kg of nitrogen, 1.4kg phosphorus and 1.4kg potassium per m3 of digestate, nearly all of which is readily available, artificial fertiliser use and its costs have been slashed on our customer’s farms. Our biofertiliser is approved for use on organic farms.


Working with an accredited supplier is highly recommended, we suggest that farmers get written confirmation from suppliers that the compost or digestate to be supplied meets the industry statutory requirements that must be complied with.

Here at BioteCH4 we take quality seriously, all our plants are part of the Biofertiliser Certification Scheme (BCS) and produce only PAS110 digestate. This scheme sets out standards for the feedstock, production, and quality assurances of the final product; meaning that our digestate is consistent and is a product marketed as ‘Biofertiliser’.

Find out more

If you’d like to find out more about biofertilisers then you can read more in our blog or contact our Digestate Manager Isaac Carswell, or call 07999 112279.

In For the Long Haul

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With over 60 years’ expertise in the food waste business and over 30 years’ experience in the anaerobic digestion industry, you can rest assured that you’re in safe hands when you work with us.

How does Anaerobic Digestion work?

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Anaerobic digestion is a complex biological process involving the breakdown of organic matter in the absence of oxygen in large, sealed, and insulated vessels with controlled heating and mixing.

Signs of Growth with Spring Acquisition

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We are delighted to announce that after the difficult year we have all had, we have welcomed a new business to the BioteCH4 group. It is testament to our team of employees across all our sites that we have been able to continue servicing the needs of all of our customers across various industry sectors during the pandemic, while continuing to grow as a business.