Catalogue

Plants, equipment and machines for water treatment

DACS

The anaerobic sludge digester is used for the sludge treatment when it is necessary to obtain the anaerobic biological decomposition of the organic matters contained in the sludge, according to a mineralization, humidification and gasification process. The digester consists of a cylindrical concrete tank; on request, the digesters can be of small size, prefabricated in steel, for which the supply includes the piping for sludge inflow, extraction and handling, excess water and biological gas, moisture separator, grit filter and ceramic filter, sludge extraction telescopic valves, overflow and extraction of excess water valves, biogas compressor and any measuring and control equipment required for the good digester operation. The sludge remains within the digester the time required for the anaerobic biological decomposition, and produces methane and carbon dioxide. Stirring of the sludge contained in the digester and then mixing with the fresh one are carried out by putting into the digester, by means of a compressor, the biologic gas previously produced. The discharge of the digested gas occurs in the most thickened shape, while the overflow drain is carried out by the control or adjustment of one of the telescopic valves. The gas is collected in the higher part of the digester whereto it is conveyed through specific pipes. The digester is provided with walkways, ladders and service galleries. On request, the complete heating plant for the heating of the sludge contained in the digester can be supplied.
The standard construction is in stainless steel.

Strenghts

• COMPLETELY AUTOMATIC OPERATION.
• HIGH SAFETY STANDARDS COMPLIED WITH.
• SUPPLY ON “TURN-KEY” BASIS WITH ANY ACCESSORIES REQUIRED FOR THE CORRECT AND SAFE OPERATION.
• SLUDGE MIXING CARRIED OUT WITH THE SAME BIOGAS PRODUCED AND/OR WITH MECHANICAL MIXER.
• VERSATILITY AND RELIABILITY.