Handpicking

Winnowing

Magnetic Separation

Sedimentation

Decantation

For smaller quantities containing particles
reasonably large in size
to be recognised can be picked by hand

Adopted to separate lighter
solids from heavier ones

Used to separate magnetic substance
from non-magnetic substance

Settling own of suspended, insoluble and
heavy solid particles
(used to separate solid-liquid mixtures)

Process of pouring out the
clean supernatant liquid
without disturbing the sediment