Anaerobic Digestion & Drying Beds

In this video you will see the synergy between the sand beds and anaerobic digestion mechanisms for the treatment of faecal sludge in Nonthaburi City. We will go through Its location, technology description, components, operation and performance. Nonthaburi Faecal Sludge Treatment Plant has four steps: 1. Anaerobic tanks 2. Sand beds 3. Storage pond and 4. Fertilizer storage.

Nonthaburi treatment plant is an example of Feacal Sludge Management due the success on the Faecal Sludge treatment system having a valuable enduse product (fertilizer). Moreover the governmental commitment towards better sanitation is remarkable; enhancing community awareness through campaigns and educational programs.

The video is based on slides and describing the treatment process :

  1. Introduction to the case study (location)
  2. Introduction to treatment plant
  3. Description of treatment plant components and operation
    1.  Anaerobic tanks
    2. Sand beds
    3. Storage pond and
    4. Fertilizer storage
    5. Performance of treatment system
    6. Take home message


The technology combination used in Nonthaburi is highly efficient for treatment of faecal sludge, removing potential pathogens, organic matter and creation of a valuable product using mostly natural forces.  The key factors of success of this treatment plant are:

  • Active participation of the local government (budget support and advocacy campaigns)
  • Appropriate operation and maintenance
  • Low energy consumption
  • Only domestic faecal sludge is treated, to ensure the low concentration of heavy metals in the fertilizer

The Nonthaburi faecal sludge treatment plant is contributing to the reduction of digestive systems related diseases in the municipality, which ultimately leads to safe hygiene in the community.

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