... nations such as Finland, Denmark, France, Japan, the Netherlands, Australia, Sweden, South Korea and Germany. Looking at urban markets anywhere, we can count more than 20 trade-marks of bottled drinking ... river and canal is widely used in the upper parts of the delta, where the water quality isnot effected by high concentration of salinity and/or acidity and/or pollution. In An Giang and Kien Giang, ... many water supply and environmental sanitation programs. Notice that, in the present time, about 75% of the inhabitants in the urban and 35% in the suburban and rural have access to clean...