Difference between fouling and scaling - Difference between fouling and scaling

Technical information Industrial Fouling, scaling, and corrosion

Fouling, scaling and corrosion

Reduces fouling of water flow and heat transfer. Fouling can be caused by garbage collection for the pump suction grid in the pits, the growth of algae in lighted areas, and mucus in the shadows or dark areas of water systems. The material can clog pipes or other parts of the system, after he has escaped and migrated to the flow of water. Zoom also reduces the consumption of water and heat transfer. Deposition of dissolved minerals on the surface of the equipment causes scaling. This is especially so in hot places, where the heat transfer is the most important.

Corrosion is caused by impurities in the water. In addition to the reduction in water flow and heat transfer he also damage the equipment. In the end, corrosion reduce the effectiveness of the work. This can lead to expensive repairs or even replacement of equipment.

Impurities at least five confirmed sources. One of the earth's atmosphere. Water projected in the air, whether natural rainfall, or the soul of the water through the cooling tower, the dust, as well as oxygen and carbon dioxide.

Similarly, synthetic atmospheric gases and dust affect the purity of water. Industrialized area exposed to such impurities are embedded in the water supply system.

Decaying plant life, the source of water impurities. Rotting plants produce carbon dioxide. Other products of vegetable decay, causing an unpleasant odor and taste. -Products of vegetable collapse of nutrition for the goo growth.

These three sources of pollution pollute the water with a material that makes it possible for the water to pick up more impurities from the fourth source of minerals. Minerals in the soil beneath the surface of the earth, probably, are the main source of pollution in the water. Many minerals are present in the subsurface soil. They are more soluble in the presence of impurities from the first three sources mentioned above.

Industrial and domestic wastes are fifth in principal source of water impurities. Municipal waste affects the bacterial count. Therefore, it is of interest to health officials, but not the paramount importance of scale and corrosion point of view. Industrial waste, however, can greatly increase the corrosive properties of water. This may indirectly cause a higher than normal content of mineral substances.

Correction or generation of finely divided material that has the appearance of mud or silt causes of fouling. This sludge, as a rule, consist of mud and debris from the air. Sludge is introduced with the make-up water. Leaves and dust together in the wind and washed out of the air and rain. This debris settles in tanks or in other parts of the cooling system. Growth of plants, and also contaminates. Bacteria or algae in the water leads to the formation of large masses of algae and slime. They can clog the system of water pipes and filters. Paper, bottles and other debris also cause fouling...

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