Water that collects on the ground or in a stream, river, lake, reservoir, or ocean.

_______ water, which is obtained by drilling wells, is water located below the ground surface in pores and spaces in the rock

_____ % of water is consumed for domestic purposes. Water is used for drinking, bathing, cooking food and washing dishes, clothes, fruits, vegetables and brushing teeth.

______ is the largest consumer of water.

About 70% of water is used here.

Water molecules exist in liquid form over an important range of temperature from 0-99 degree Celsius.    

Water has a lower surface tension.

water is considered a biological solvent for its ability to dissolve a wide range of substance since it is polar molecule.

The use of chemical reagents to destabilize and increase the size of the particles; mixing; flog size growth; physical separation of the solids from the liquid phase Sedimentation (decantation), flotation, or filtering are commonly used to achieve this separation.

the process by which particles suspended in water settle out

of the suspension due to gravity.

a thermal drying technique in which heat energy is applied to the sludge in order for it to evaporate water.

Such a method can be used for distribution when the ground level of the water source/storage is sufficiently higher than the central village/town area.

 Provide water for drinking, cooking, sanitary, washing, and gardening purposes.

Direct Water goes to overhead tank and then the water is supplied to different floors by gravity.

a natural process by which water moves across, through, and out of the soil as a result of the force of gravity.

During heavy rainfall the upper soil layers

become unsaturated and pools may form.

In order to facilitate the flow of excess water toward the drains, the field is given an artificial slope by means of ________. 

the removal of water from the rootzone. It is accomplished

by deep open drains or buried pipe drains.

In contrast to open drains, buried pipes cause no loss of cultivable land and maintenance requirements are very limited.

Regulates airflow to assure waste and water flows through pipes.

__________ carry waste out of your home to either

the city sewer or a septic tank.

Type of Vent that Serve a battery of fixtures.

The vertical vent pipe installed for providing

circulation of air to and from any part of the soil,

waste of the drainage system.

A curved piece of drainpipe, made from metal or PVC plastic that allows the passing of waste material.

the process in which water leaks downward form the

upper soil layers to lower layers.

Usually located along the entire

perimeter of the roof.

A VERTICAL OPENINGS IN THE ROAD CURBS

THROUGH WHICH THE STORMWATER FLOWS.

very useful in removing excess water from land

in a controlled manner and as quickly as possible, to a artificial

drainage system or natural water course. this should be done with

no damage to environment.

The process of directing excess water away from the root zones of plants by natural or artificial means, such as by using a system of

pipes and drains placed below ground surface level.

Composed of transmission lines, distribution

lines, pumping stations and reservoirs all designed to bring

potable water to our customers.