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Drilling of fifteen clean water wells

2008-2018, Vinaes has drilled Vinaes has fifteen wells drilled in the three provinces: Greater Hanoi, Nam Dinh and Hoa Binh.
There are three techniques, depending on the nature of the subsoil: alluvial soil in the Red River Delta, subsoil of rocks of various densities and collection at the source.
But the same principle applies to the first two regions: Nozzle connected to an electric pump propelling the water into a reservoir located at height, while for the third, use of flexible conduits to convey the water by simply following the slope of the ground in the three provinces: Grand Hanoi, Nam Dinh and Hoa Binh.

Seven wells drilled in Nam Dinh Province

2008-2010: In this delta, the water of the surface layer (6 m) made up of alluvial soil, is extremely polluted by chemical discharges and pesticides. For more than fifteen years, to obtain less polluted water, it is necessary to drill up to 60-80 meters. Then it is treated by mechanical filtering (coal, sand, gravel). In the future, the 100 meters are predictable.

Four wells at the Ba Vi Social Assistance Center 4


2009-2018: Construction of four very large capacity wells, for three hundred residents with industrial drilling equipment through layers of hard rock before reaching the water tables located between 80 and 100 m. The water passes through a set of tanks for treatment: oxygenation, filtering, purification...

Four water catchments at the source
in Mai Chau-Hoa Binh

Xa linh, 2008: Reten-tion basin near the source

Nà Bon, 2009: Well which also supplies water to the nearby gynecological dispensary

 

Khang Chao, 2010: Two wells for 24 families in a village separated by the Hanoi-Dien Bien Phu highway