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Samut Prakan Locals Ferment Fruit, Molasses to Combat Rank, Polluted Canals

Samut PRakan Thailand Fermented Water Pollution Smell

Residents of Samut Prakan’s Muang District are using bio-fermented water to clean up rotten water in foul-smelling natural canals.

The bio-fermented water can be made by bringing leftover food waste from daily consumption to be mixed with molasses and emulsified liquid and then left to ferment under natural anaerobic conditions for 15 days.

After that, villagers pour the fermented water into the canals to help add oxygen and improve the conditions of the water in the canals that will become clean.

Villagers said the bio-fermented water can be used for working in agriculture, fish farming, and watering plants as in the past.

Bancha Munthongkham, head of Bang Duan Subdistrict, explained that they mix the leftovers with approximately a kilogram of different kinds of fruits, a liter of molasses, and a liter of emulsifier.

“It is important to note that the lid must be covered and stirred with a spatula every two days to prevent gas buildup in the tank,” he added.

The bio-fermented water formula varies across different regions, according to Munthongkham.

A group of villagers and volunteers launched this campaign to help treat wastewater and make canals clean again as they were 50 years ago.

“The water used to be clear and clean. There were many aquatic animals including big shrimp that villagers caught for food,” said resident Wipawan Booncharoensuk.  

They took action after water in canals turned black and was polluted affecting the aquatic life in the area.

Also, bio-fermented water helps in treating ponds and fish farm water with microorganisms to increase the oxygen in the water.

Chatri Nimsuk, a villager in Mueang Samut Prakan District, referred to the existence of factories that release wastewater into canals as a major challenge they face, urging people to help preserve the environment.