The floatation unit technology is considered a more advanced methodology
than the sedimentation approach as it is more effective in separating most
contaminators regardless of its size no matter how small and tiny it was and
irrespective of the mi
nimal density difference between the water and most
contaminators. The sedimentation approach depends on using assisting
water that contains more dissolved air than the normal water under the
regular conditions and therefore, once the over saturated water (assisting
water) enters the container of the floatation unit filled with contaminated
water, small bubbles will formulate immediately sticking most of the
contaminators that exist in the contaminated water, whether small of big
leading to a reduction of its density and thereof floating on surface during a
short period of time. The floating sludge can be removed mechanically.
