1.groundwater donot evaporate
2.available throughout the year
3.in arid,semi arid scanty rainfall areas ground water is good choise
The main disadvantage of compacting concrete using a cement vibrator is the noise. The advantages of compacting concrete using a cement vibrator is to remove trapped air and excess water which then allows the concrete settle firmly.
FUNCTION OF OZONE IN WATER TREATMENTOzone is being used as a disinfecting agent in drinking water treatment.It has been used extensively for disinfection and for taste and odour control also.Ozone treatment is generally effctive in dealing with pathogenic bacteria and cysts.Ozone treatment has its own typical advantages and disadvantages too.
Concrete water tank has rough surface so collects dirt and bacteria.It's base line cracks result in water contamination. And flat bottom will not allow complete drainage of hose pressure water with chemicals resulting in contamination of incoming water.So chlorine causes degradation of the tank surface that provides room for bacteria growth.
In civil engineering, measurement of earth surface under water. Eventually, it leads to calculation of volume of water held (or flowing through) depressions on earth surface. Since, underwater surfaces are not directly accessible for measurement a separate technology called sounding is used to measure the depth of surface from water surface. Sounding methods may vary from running a long string with a sink to the bed of water body to sending an ultrasonic vibration to measure the time of return.
Soil suction is zero at the phreatic surface. This is the point where the pore water pressure is equal to the pore air pressure. Above this surface pore water pressure becomes increasingly negative compared to pore air pressure and as such matric suctions develop. Below the phreatic surface the pore water pressure becomes increasingly positive and the pore spaces are totally saturated.
The advantages and disadvantages of water supply from river reservoirs and groundwater are one in the same. It could be a good source of water, but if it is contaminated, it could make you sick.
The groundwater gets the water
The groundwater gets the water
Surface water.
Yes, because its more complex to clean up groundwater than surface water.
The groundwater contain more radon.
No, it is called ground water.
Surface water refers to lakes, rivers and other bodies of water. It is usually filled with fish and other animals. Groundwater is the water that lies under the ground.
Groundwater, simply, is the water beneath the surface of the ground.
Absorbs into the ground
Aqueducts
Aquifers are groundwater.