Sludge digester

Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing

Patent

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Details

435289, 422184, 210603, 210DIG9, 220217, C12M 100, C12M 136

Patent

active

052388441

ABSTRACT:
A sludge digester having a main tank in conjunction with a gas-holding cover is disclosed. The cover includes a roof and a depending sideskirt which telescopes in relationship to the main tank. Positioned at the bottom edge of the sideskirt are a multitude of ballast members. A chamber, adapted to contain a quantity of liquid, is associated with the main tank. The sideskirt and the ballast members are submerged within the liquid contained within the chamber to form a gas tight seal of the cover with the main tank. The chamber also includes a system for maintaining a predetermined liquid level in the chamber dependent on the position of the ballast members in the chamber.

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