Pre-treatment
Technique and management of the not collective purification - Regulations and pretreatment
Quizzed article REF: C3842 V4
Pre-treatment
Technique and management of the not collective purification - Regulations and pretreatment

Author : Jean-Marc BERLAND

Publication date: December 10, 2023 | Lire en français

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3. Pre-treatment

3.1 Degreaser tank

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3.1.1 Principle

In collective sanitation, grease traps are used to remove wastewater from restaurants before it enters the sewer system.

Grease effluents can damage sewage systems and interfere with water treatment if they are discharged directly into the public sewer system. They have two functions:

  • settling;

  • separation of fats by natural flotation (Figure

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