Heat Exchangers for Anaerobic Digestion

Concentric Tube - Heat Exchangers

Monsal concentric tube heat exchangers are designed for heating sludge and organic waste in the anaerobic digestion process, and are available in units from 50 to 3000kW as standard. Large inner tubes, 80-150 mm in diameter are used to eliminate blocking and allow heating of thick sludges to over 10% dry solids content. Purpose designed water jackets give optimal liquid velocity and heat transfer.

Monsal heat exchangers are manufactured to ISO 9001:2008 standard and are available in carbon or stainless steel. Hardened pipework and bends can be specified for high abrasion or grit applications. Standard heat exchangers are available in 6.0m and 3.0m tube lengths but products can be manufactured to suit most requirements.

Monsal heat exchanger packages can also be provided to suit individual projects. These heat exchanger modules with integral Monsal Controllers are available skid-mounted and fully piped-up, and are suitable for mesophilic and thermophilic duties. The pre- assembled modules facilitate fast track installation and commissioning. Our heat exchanger products are suitable for incorporation with heat recovery loops including CHP and thermal drier applications. Monsal Controllers ensure accurate temperature control to +/-1C.

Steam Ejector – Heat Exchangers

Monsal Steam Ejector Heat Exchangers are suitable for high heat transfer duties for thick sludges and slurries. They are especially suited for advanced digestion processes including thermophilic digestion, Enzymic Hydrolysis, thermal hydrolysis and specialist applications where there is a higher risk of heat exchanger fouling.

Monsal Steam Ejector Heat Exchangers come as completely assembly products with integrated control systems. We can also work with you to develop the complete steam heating system package with our specialist skills.

Monsal Steam Ejector Heat Exchangers are suited for very thick sludges and can be provided with high pressure and depressurization systems to increase the levels of solids destruction in the digestion process.