objective of water treatment

• remove the different impurities in raw water

• for manufacturing purpose

• reduce the turbidity

• remove all the microbial in raw water

Three contaminant that can be removed by using filtration except;

• turbidity

• microbial

• color

• organics

purpose of intake in water treatment plant

• to filter raw water from water source

• to deliver water to treatment plant

• to make sure water is clean before being used in plant

• to withdraw water from water source

aluminium sulfate usually used as a

• catalyst

• flocculant

• coagulant

• neutralizer

All of the following are the functions of aeration tank EXCEPT;

• remove the air and gases from the water.

• separates suspended particle matter from water

• Adding oxygen into the water

• Remove unwanted odour from water

In which part flocculation of floc happens?

• mixing point

• aeration tank

• sedimentation tank

• filtration

what is coagulation?

• to remove the sludge

• neutralization of charges for particles to agglomerate

• bring suspended particles together so they will form flocs

• to remove all the suspended material in water

all of the following are the medium for granular filtration EXCEPT

• sand

• activated carbon

• coal

• wood husk

the term chlorination is also similar with

• aluminium sulfat

• calcium oxide

• chlorine

• hydrogen sulfat

all of the following are the chemicals used in water treatment process EXCEPT

• aluminium sulfat

• calcium oxide

• chlorine

• hydrogen sulfate