Water Treatment Alum For Water Purification

Settling and decanting 2.

Water treatment alum for water purification. Coagulation is a chemical process that involves neutralization of charge whereas flocculation is a physical process and does not involve neutralization of charge. It is readily soluble in water. When alum is added to water it reacts with the water and results in positively charged ions. There are a variety of primary coagulants which can be used in a water treatment plant.

In water treatment coagulation flocculation involves the addition of compounds that promote the clumping of fines into larger floc so that they can be more easily separated from the water. Filtration through sand 2. The coagulation flocculation process can. This document should prove useful to you as you consider pre treatment options to improve water clarity and acceptance of water treatment with sodium hypochlorite by the target population.

Historical evidence suggests that water treatment was recognized and practiced by ancient civilizations. Drinking water supplies in the united states are among the safest in the world. Basic treatments for water purification have been documented in greek and sanskrit writings and egyptians used alum for precipitation as early as 1500 bce. Aluminum sulfate serves as a coagulant and flocculating agent in water treatment making the water easier to clean.

One of the earliest and still the most extensively used is aluminum sulfate also known as alum. Because hydrated lime is easily handled its use is preferable in the smaller water treatment purification plants where lime is required to supply additional. More about alum from other sources. Water treatment 6 1 introduction water can be contaminated by the following agents.

Alum can be bought in liquid form with a concentration of 8 3 or in dry form with a concentration of 17. Filtration through a cloth 1 2. Harmful chemicals from human activities industrial wastes pesticides fertilizers. Alum causes them to clump together so that they can settle out of the water or be easily trapped by a filter.

Alum can be bought in liquid form or in dry form. Moringa seed flocculation 3. Aluminum sulfate is also important for lake treatment and restoration. Pathogens disease causing organisms that include bacteria amoebas and viruses as well as the eggs and larvae of parasitic worms.

Coli hepatitis a giardia intestinalis and other pathogens. It is mainly used in municipal water treatment plants to treat wastewater and potable water. Usually a mixture of water with 48 percent filter alum is injected into the raw incoming water at a rate of 18 to 24 parts per million.