Capital Gets $24 mln Sewage Treatment Plant

Upper view of the wastewater treatment plant. Photo: Prime Minister Hun Manet Facebook

PHNOM PENH – A $24 million sewage treatment system and wastewater drainage system came into operation in Phnom Penh on Dec. 27.

The system, funded by the Japanese government, includes pumping stations and a treatment plant to filter wastewater and improve the water in Choeung Ek lake before being drained into Bassac River.

It broke ground in February of 2022 and can filter 282,000 cubic meters of wastewater per day.  

It is one phase of the masterplan being implemented until 2040, according to Phnom Penh Governor Khuong Sreng. 

Japanese Ambassador Ueno Atsushi said wastewater filtration, alongside supplying electricity, clean water and waste management, is an essential task for developing cities and is continuously being expanded.

The ambassador said the plant is the first quality station filtering wastewater in Cambodia using new technologies from Japan. 

The treatment has advantages such as requiring less power and having simple structures. These made it easy to operate and maintain. Japan also provides technical support and operation staff, he added. 

Prime Minister Hun Manet thanked the Japanese government for this improvement to the lives of people in the capital. 

He said next year will be another year of close relationship between Cambodia and Japan even though celebration of the 70th anniversary of diplomatic links ends this year. 

The Prime Minister believes that the development project will turn the Choeung Ek Lake – near the country’s former orchard and mass graves of victims of the Khmer Rouge knowns as the Killing Fields – to a crowded area and the location for wastewater filtration. 


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