Use of mechanical energy to inject air into water to cause a waste stream to absorb oxygen.

A term used in the mineral industry to describe the use of dispersed air to produce bubbles that measure 0.2 to 2 mm in diameter.

Materials that form a barrier to the passage of certain suspended solids or dissolved liquids in filters.

A water system that serves 3,300 to 50,000 customers.

The change of a solid into a liquid.

A thin barrier that allows some compounds or liquids to pass through, and troubles others. It is a semi-permeable skin of which the pass-through is determined by size or special nature of the particles. Membranes are commonly used to separate substances.

Reservoirs and lakes which contain moderate quantities of nutrients and are moderately productive in terms of aquatic animal and plant life.

Conversion of food, for instance soluble organic matter, to cellular matter and gaseous by-products through a biological process.

Micro Filtration System, it serves full automatic solid/ liquid separation.

The multiplication of microorganisms such as bacteria, algae, diatoms, plankton, and fungi.

A unit to discribe a measure of length, equal to one millionth of a metre.

Organisms that are so small that they can only be observed through a microscope, for instance bacteria, fungi or yeasts.

Same as ppm

Contains large amounts of dissolved minerals such as calcium, sodium, magnesium, and iron. Some tap waters contain as many or more minerals than some commercial mineral waters. There is no scientific evidence that either high or low mineral content water is beneficial to humans.

The ability of two liquids to mix.

Liquid particles measuring 40 to 500 micrometers, are formed by condensation of vapour. By comparison, fog particles are smaller than 40 micrometers.

Various elements, compounds or both, that are mixed.

Combinations of two or more atoms of the same or different elements held together by chemical bonds.

Discharge of effluent from wastewater treatment plants, which receive wastewater from households, commercial establishments, and industries in the coastal drainage basin.

Liquid wastes, originating from a community. They may have been composed of domestic wastewaters or industrial discharges.

Semi liquid residue that remains from the treatment of municipal water and wastewater.