underground sewer

The 15km underground sewer line of the Yen Xa Wastewater Treatment Plant project has been completed, preparing to rescue the polluted To Lich river.

After 8 years of construction, the super sewer that can hold as much water as 600 Olympic swimming pools under London has been completed and will operate on a trial basis this

The hundred-meter-long sewer system is in such a good condition that it can be used today for storm water drainage.