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Wastewater Sludge Holding Tank

SSI Aeration, Inc. designs and manufactures highly efficient sludge holding tanks that are built to store, manage and treat sludge at various stages of the wastewater treatment process.

Sludge is a byproduct of the wastewater treatment process that contains semi-solid and solid materials, such as pollutants and microorganisms. As a result, sludge requires proper handling, storage and removal to prevent pollution of the surrounding environment:

Storage

A holding tank provides temporary storage for sludge residue from the primary and secondary wastewater treatment stages. The excess waste released during those stages is transferred into the holding tank, where it is stored before disposal or further processing.

Thickening

The holding tank can also serve as a location for sludge thickening. This process involves increasing the solid concentration, which reduces the volume of sludge, making it more manageable for further treatment or disposal.

Digestion

Sludge holding tanks can be used to facilitate biological processes like digestion, where the organic matter is consumed and converted by microorganisms. This operation helps treat and stabilize the sludge.