Page 183 - Bluebook Sereco english

Digesters – Gasometers –

Heat exchangers

• CGE
• CGT
• DACS
• SCF www.sereco.it

Often, in the civil or industrial wastewater treatment necessary for the correct operation of the whole anaer-
plants, the sludge is submitted to an anaerobic diges- obic digestion line. In particular, digesters (DACS), gas-
tion treatment. This type of digestion is preferred with ometrical helical guide bells (CGE) or telescopic guide
respect to the aerobic one due to a so definite energy bells (CGT) and sludge heat exchangers (SCF). On
save and the aerobic digestion is considered acceptable request, the digester DACS can be supplied equipped
only for limited capacity plants where, often, it is with the complete heating unit consisting of boiler,
impossible to install an anaerobic sludge digestion sys- burner, biogas torch and any mechanical, electrical,
tem for space reasons. In the other cases the anaero- electronic and thermal equipment required for the cor-
bic digestion is recommended: in fact it is generally able rect operation.
to supply the heat energy required for the sludge main- SERECO catalogue offers also different equipment
tenance in the temperature condition ideal for the useful for the sludge line that is not included in this
development of the anaerobic digestion processes. section dedicated exclusively to digesters, gasometers
Sometimes, in the big plants, it is possible to use also and heat exchangers. In particular there are also
the residual biogas produced for the electric power equipment for the sludge dehydration which are dealt
generation. with in the section dedicated to sludge thickeners and
This section of SERECO catalogue offers any items dewateres.