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List of Tank Suppliers for Digesters and General Use

List of UK Suppliers

List of UK Tank Manufacturers and Telephone Numbers

August 2009

This table is based upon a table published in the August 2009 edition of Water and Wastewater Treatment, as the Tank File. For the full table which contains far more information on each supplier subscribe to the magazine or visit their web site at http://www.water-waste-environment-marketplace.com/index.asp

Notes On Selecting and Specifying Tanks for Anaerobic Digesters

Tanks are available in many different sizes and materials being engineered and designed for use within anaerobic digesters and containment at digester operating temperatures and pressures.

Tanks suitable for anaerobic digestion and storage are available formed from a wide variety of materials which are chosen based on properties of chemical resistance, strength, design life, erection speed and cost.

The low initial cost option for the budget digester tank is often considered to be the sectional steel glass or epoxy coated circular steel type tank (which also should include a zinc coating to the steel, before application of the glass) seen predominantly in use as agricultural digesters. Digester plant designers would do well to note that those that have been designing digesters for a long while for sewage sludge rarely use steel tanks of any type, preferring instead the superior durability and corrosion resistance of a well designed concrete tank. Concrete also holds the additional advantage of being a good insulator reducing the need for insulation in cool climates. For thermophilic digesters the tank insulation requirements should be considered from an early stage of tank design and selection.

Polyethylene (PE), a light, chemically-resistant thermoplastic, and GRP (Glass Reinforced Plastic) and steel, are the most commonly used materials in digester plant ancillary tank applications.

All storage tanks should be provided with overflow pipes of sufficient capacity to safely carry off the greatest quantity of water likely to be discharged by the supply pipe in the event that a malfunction of the pump control system fails to prevent overfilling. It is commonly recommended that it is a safe rule to allow for the overflow pipe twice the diameter or four times the sectional area of the supply pipe.

Consideration must also be given during design and tank selection to the requirements for bunding to reduce the risk of spillage to an acceptable level in the event of tank wall of base failure. The requirements for bunding are stated in the regulations administered by the environmental regulator (Environment Agency in England and Wales).

Most tanks need to be installed on a concrete base or reinforced pavers. Never assume for any large digester tank that the ground bearing pressure will be adequate to support the tank without settlement and damage to the tank base, always ensure that a structural engineer or otherwise suitably qualifies and experience professional assesses the ground bearing pressure at your site before installing a standard tank base. In some instances specially reinforced tank bases or rafts will be necessary, and at some poor ground bearing sites piling may be required to support the tank base.

The tanks supplied for digestion plant use are typically required to be guaranteed for at least 20 years and the best can be recycled at the end of their useful life. However, for any warranty to be upheld the buyer will need to make the intended use and corrosion characteristics of the liquid held in any tank clear to the supplier/manufacturer, and comply with any regular inspection or other requirements set within the terms of the warranty.

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The Big List of Anaerobic Digestion Plant Suppliers

Over 80 suppliers and turnkey contractors for Anaerobic Digestion Plant (Biogas Digester) projects are listed.

Each company’s address, phone number, and contact emails are provided.

This ebook saves many hours of frustrating web searching and surfing to collect this information.

Anyone seeking to establish the feasibility of setting up an Anaerobic Digestion plant will find this useful.

The rapid pay-back of the purchase cost immediately becomes  apparent when you consider the very many hours it would take you to compile this yourself.

Buy now! The introductory price of £9.99 will go up soon, and with the next revision we will have to raise the price substantially.

For more information click to the List of Anaerobic Digestion Plant Suppliers.

Price: £9.99              (Acrobat file download)
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