NA-05 - Cleaning: Solids in Drain and Sewer Systems (Demo)

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Consequences of solids entry

Composition of sediments

Other findings include:

Self-solidifying deposits consist of 90% mineral solids, which enter the sewer system through the street drains.
Of that about 30% are fine particles (≤ 0.1 mm) which contribute to the formation of hard to loosen, cohesive and pasty deposits.

Note:
Along with the fine mineral particles, fine organic particles also form part of the deposit structure, and can sometimes act as a concrete like binder between the mineral particles.

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