what is loading in science
In the process of LOADING, generally an alloy named ALUM is used . This alloy is soluble in water. As it dissolves in water, it loads the insoluble substance along with it. This helps to make the process of sedimentation faster. For eg. In nature, loading can be seen in times of rains. The rain drops load the dust particles and settle them on the ground.
Sedimentation involves settling down of suspended heavy particles present in a mixture at the bottom of the container when left undisturbed for some time. The particles settled down are called sediment. After sedimentation, decantation is carried out by pouring off the liquid to separate the solid sediment.
The process of sedimentation is time consuming as the suspended particles take time to settle down to bottom. The process is sped up by the process called ?loading?. It involves making the light suspended particles heavy. The chemical used for loading suspended particles is Alum. Alum?s fine particles load themselves on the suspended particles to speed up the sedimentation.
When the heavier component in a mixture settles after water is added to it, the proccess is called sedimentation
When the water along with impurities is removed, the proccess is called decantation
By decantation ,a liquid is not completely seprated from a insoluble solid, filterration is best method