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The Agrivert AD Process ➊ Local Authority and commercial food wastes are

delivered to an enclosed reception building where solid waste is tipped into a bunker.

➋ Food waste and packaging are mechanically separated in a hammermill. The separated food waste is stored and de-gritted in a buffer tank and the packaging is collected in a skip.

➌ ➋

➌ Food waste is pasteurised at 70°C for one hour using renewable heat generated on-site.

➍ Pasteurised food waste is pumped to a primary

digester, where organic matter starts to break down, producing biogas.

➑ ➒ ➓

➎ Digestate is transferred to the secondary digester where it continues to break down and generate biogas.

➏ Whole digestate is finally pumped to storage until required by farmers. Any residual biogas produced in a storage tank is collected.

➐ Digestate is collected via tanker and used as an organic bio-fertiliser on local farmland.

➑➒ Biogas produced during digestion (and storage) is burned in CHP units to generate heat and electricity. 8% of electricity is used to power the AD facility and rest is sold to the National Grid.

➓ Heat, generated as a by-product, is used to heat the pasteurisers and digesters. Waste/Digestate Biogas Electricity Heat

Agrivert Ltd. The Stables, Radford Chipping Norton Oxfordshire OX7 4EB t:+44(0)1608 677 700 f:+44(0)1608 677 711 mail@agrivert.co.uk

www.agrivert.co.uk

ANAEROBIC DIGESTION

Agrivert provides source segregated food waste solutions


ANAEROBIC DIGESTION

Agrivert is a market leader in Anaerobic Digestion (AD), renewable energy generation, composting, and the treatment of sewage sludge. We provide sustainable, competitive organic waste management solutions. Overview

Proven performance

Sustainability

Agrivert has been treating and recycling organic waste in the UK since 1994. We combine proven technology with operational experience and innovative design to deliver reliable solutions for the treatment and recycling of biodegradable municipal waste, commercial food waste and sewage sludge.

The performances of Agrivert AD plants and systems are proven in commercial scale food waste applications.

Agrivert AD plants are operationally, economically and environmentally sustainable.

Key to the success of our AD plant design has been:

We achieve this by:

Design, build and operate Agrivert designs, builds and operates AD plants for the treatment of food waste. Our first 50,000 tpa AD facility in Oxfordshire was built and commissioned in 2010 on time and to budget. Agrivert provides:

• • • • • •

Reception and storage systems Depackaging systems (ABPR and PAS110 compliant) Conveyance and feed systems Pumping and storage systems.

Operating experience Agrivert owns and operates commercial scale food waste AD facilities. Our operating experience enables us to design facilities that are reliable, efficient and low maintenance. Agrivert offers the following operational attributes:

Reliable plant operation and waste management services

Sustainable markets for digestate.

 ➊ Gas engines

Robust plant design and extensive operational experience has resulted in excellent facility availability.

Performance standard of Agrivert AD plant is above industry average.

Reliability of waste treatment is achieved through:

 ➋ Tipping

Simple, flexible and robust systems: proven to process a wide range of packaged and unpackaged wastes

Contained waste reception system ensures plant biosecurity.

Single stage depackaging system achieves ABPR and PAS110 standards.

Rigorous review of existing designs and technologies over a six year R&D period.

Consistently delivering reliable waste treatment services

Appointing AD technology partners with proven systems operating across Europe

Producing low odour, high nutrient value biofertiliser products

Buffer storage capacity: allowing continued receipt of waste even during maintenance of downstream equipment

 ➍ AD

Designing flexible, robust systems with low operating costs

Biological stability: achieved through large tanks, long retention times

Tailoring our equipment specifications and plant design to suit the requirements of the UK food waste market.

Reducing local need for costly fossil fuel derived fertilisers, saving farmers money and reducing greenhouse gas emissions

Operational experience: enabling Agrivert to anticipate and overcome issues and thereby deliver seamless waste management services

 ➎ Digestate

Securing long term local markets for biofertilisers

Simplicity of design: minimal moving parts.

Evolving our designs by implementing lessons learnt through operation of our own plants.

A 2.1MW Agrivert plant is proven to operate with an average output of 97% maximum energy generation capacity and produce nearly 18,000 MWh of electricity per year.

Feedstock flexibility Agrivert AD systems can process a wide range of waste feedstocks, without requiring alteration for different waste compositions or packaging materials. Agrivert versatile AD systems can process:

• • • • • •

Local Authority waste Commercial packaged waste ABP materials (category 3) Liquid wastes Agricultural wastes Energy crops.

Maximising renewable energy generation through long digester residence times and low plant parasitic loads Diverting food waste from landfill.

Low operating costs Agrivert combines low operating costs with high renewable energy outputs to deliver competitive, value for money waste treatment solutions. Low operating cost is achieved through:

• • • • •

Innovative design Low staffing numbers Low electrical parasitic load Low maintenance costs Securing local markets for products.

 ➌ Hammermill

Turnkey AD solutions Simplified plant operation and automation of systems

Reliability

Agrivert provides turnkey AD solutions, and front end systems.

Agrivert whole digestate is an effective biofertiliser that generates income.

Planning consent Agrivert has a skilled in-house planning team. We have achieved numerous complex permissions for AD plants, many in green belt. Agrivert follows a comprehensive communication strategy and engages with local communities from a very early stage.

Regulatory compliance Agrivert processes are designed and operated to comply with UK regulation including:

• • •

PAS110 Animal By-Products Regulations (ABPR) Permitting Regulations 2010.

Biofertilisers Agrivert has recycled over 6 million tonnes of organic fertiliser since 1994.

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Agrivert Anaerobic Digestion brochure  

Agrivert provides sustainable and cost effective organic waste management solutions. Operating across the UK, Agrivert is a market leader in...

Agrivert Anaerobic Digestion brochure  

Agrivert provides sustainable and cost effective organic waste management solutions. Operating across the UK, Agrivert is a market leader in...