Program Case Studies

The Sufficiency Thinking in Sustainable Development program has been designed to showcase the SEP and how it has been implemented in different parts of Thai society.

Royally-Initiated Laem Phak Bia Environmental Research and Development Project (LERD)



Using the principle of “Nature cures nature”, the late King Bhumibol initiated Laem Phak Bia Royal Project to treat wastewater and organic solid waste through environmentally and ecologically sustainable methods. Local people are encouraged to use the area to grow economic crops for wastewater filtration and to fish in regenerated mangrove forest areas.

Wastewater is treated through use of oxidation ponds, constructed wetlands, and mangrove forests that filter wastewater from the municipality of Phetchaburi.
Thriving fauna in mangrove forest mud.
Lagoon waste-water oxidation treatment (1 of 5 ponds)
Mangrove forest restitution on ocean front for pollution control
Grass-filtration ponds for waste-water treatment at end of 90-day grass growth cycle
Organic solid waste composting bins
  • Thriving fauna in mangrove forest mud.
  • Lagoon waste-water oxidation treatment (1 of 5 ponds)
  • Mangrove forest restitution on ocean front for pollution control
  • Grass-filtration ponds for waste-water treatment at end of 90-day grass growth cycle
  • Organic solid waste composting bins
  • Thriving fauna in mangrove forest mud.

    Credit: College of Management Mahidol University
  • Lagoon waste-water oxidation treatment (1 of 5 ponds)

    Credit: College of Management Mahidol University
  • Mangrove forest restitution on ocean front for pollution control

    Credit: College of Management Mahidol University
  • Grass-filtration ponds for waste-water treatment at end of 90-day grass growth cycle

    Credit: College of Management Mahidol University
  • Organic solid waste composting bins

    Credit: College of Management Mahidol University
  • Thriving fauna in mangrove forest mud.
  • Lagoon waste-water oxidation treatment (1 of 5 ponds)
  • Mangrove forest restitution on ocean front for pollution control
  • Grass-filtration ponds for waste-water treatment at end of 90-day grass growth cycle
  • Organic solid waste composting bins

LERD PROJECT

At the LERD Project, study and research had been conducted to seek methods for managing wastewater and garbage, and restoring the mangrove forest. The result was the development of four technological systems, including:
  • Lagoon Treatment
  • Grass Filtration
  • Constructed Wetland
  • Mangrove Forest Filtration
The LERD Project has improved its wastewater treatment and garbage management methods to be more effective and suitable for the environment. It also helps to prevent wastewater collected from the municipal area from flowing into the Phetchaburi River, which in turn restores the balance of nature. The LERD Project currently serves as a model for environmental improvement and conservation.

Besides conducting study and research, the LERD Project serves as a learning center for wastewater management and mangrove forest conservation. It regularly accommodates field education trips for schools, academic institutes as well as the general public. The scenic location next to a mangrove forest and the sea has also established the LERD Project to be a famous eco-tourist attraction and an ideal destination for bird watching activities.

Location

Laem Phak Bia Sub-district, Ban Laem District,
Phetchaburi Province, Thailand
Tel: +66 32 441 265

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Secretariat Office

College of Management
Mahidol University
69 Viphavadee Rangsit Rd., Phyathai
Bangkok, Thailand.
Tel: +662 206 2000

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