AeroThermal Group

Waste Autoclaves

AeroThermal's autoclave is a pressure vessel that steam treats its contents at a constant temperature and pressure, serving to sterilise, clean, break-down lignin structures and reduce waste volume by approximately 60%. Then, by applying a secondary process the true added value of the autoclave can be realised. These qualities can not only serve to increase landfill diversion rates, but if the process by-product, cellulose floc, is used to its full advantage, clean, green energy can be derived from waste.

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Gasification

The EnviroThermal fixed bed gasifier is an innovative design that utilises a revolutionary multidirectional airflow. The system is currently being rigorously tested under University conditions and a small demonstration prototype will soon be available in Poole, Dorset.

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Anaerobic Digestion

Anaerobic Digestion (AD) is the preferred stabilisation process for the treatment of wastewater sludge and organic wastes. The process provides volume and mass reduction and delivers valuable renewable energy with biogas production. Anaerobic digestion is a simple process that can greatly reduce the amount of organic matter that might otherwise be destined for landfill or burnt in an incinerator.

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AAD
South West

British engineering company AeroThermal Group Ltd together with 4Recycling Ltd is proposing to develop a sustainable waste and resource treatment facility at the site of Imerys Minerals Ltd at Lee Moor, South Devon. The facility will use autoclave and The AeroThermal Group Ltd's proprietary Advanced Anaerobic Digestion (AAD) technology to generate 3MW of renewable (green) electricity. Recyclable materials will also be recovered from the waste stream and the stable digestate, a by-product of the AAD process, will be used to help restore parts of the adjoining Imerys Minerals Ltd Lee Moor China Clay workings.

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Boiler Systems

AeroThermal strives to maximize overall plant efficiency and reduce negative impacts on the environment and when considering waste to energy solutions, would highly recommend the use of waste heat recovery equipment. However, there are applications where this technology is inappropriate and instead a traditional ‘package boiler’ is required. Subject to the required application, AeroThermal’s idealised ‘perfect circle’ solution would be, to operate on generation equipment powered by biogas derived from an anaerobic digestion system, with the engine exhaust heat being utilised to create steam via an exhaust gas boiler, thus maximising overall plant and energy efficiency.

Both types of boiler can be mounted in a standard ISO container footprint and this modular format provides a number of benefits, including ease of planning and the ability to easily relocate the equipment if required.

The boiler system uses three term control technology and interfaces directly with AeroThermal’s proprietary system control software.

All pictures courtesy of Babcock Wanson