What is zeolite Zeolite is micro-porous mineral which is used as catalyst in many industrial purposes such as water purification and air purification. The zeolites are hydrated aluminosilicates and general composition AlxSiyO2(x+y) (without water molecules). Zeolites are two types natural and synthetic or artificial. The natural zeolite that is used for water softening is gluconites or Read more
Lime soda process is one of the water softener systems. In this system calcium hydroxide and soda ash are used as reagents. By this process soluble magnesium and calcium salts are removed as calcium carbonate and magnesium hydroxide precipitated. After removal of this precipitated, we obtain soft water. Both temporary water hardness and permanent water hardness are removed by this lime Read more
Hard water and soft water are defining depending on water contaminants with some metals ions such as calcium, magnesium. Hard water is not good for all position; same way soft water also not suitable for all applications. Generally hard water contains greater quantity of calcium and magnesium ions. On the other hand soft water contains little amount or no ions of some metals such as calcium, Read more
What is soft water Soft water means when the water is free from the ions of chloride, sulfate and bicarbonate of calcium and magnesium salt or presence little amount of these ions; in particular total water hardness less than 150 mg/l calcium carbonate. Also free from some other metals for example iron, zinc, manganese, aluminum, strontium etc. We can also be define soft water depends on foam Read more
What is coliform bacteria Coliform bacteria are single-celled organisms that are present in the environment such as rivers, lakes and streams and as well as all warm-blooded animals like human. The structure of them is rod-shaped, gram-negative and non-spore forming bacteria. Coliform bacteria can be explained in this way that; it can ferment lactose into acid and gas at 35–37°C. The Read more