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What is the purpose of adding alum and lime in water treatment?
Wiki User
∙ 11y ago
Alum (Aluminum Sulfate) is/was used to cause particles in water (mud) to coagulate and settle to the bottom to obtain clear water off the top. That is, it is used to make muddy or cloudy water clear as a first step in turning river water into drinking water. Nowadays, polymers are used instead. Some say that Alum causes alzeimers (1970's) but if that is true, the information was successfully hushed while most of America drank water treated with alum for decades.
Lime is used to adjust the ph that is lowered by the alum. There is also a process using lime that actually removes hardness (calcium and magnesium) from drinking water obtained from limestone aquifers. This process is called Lime Soda Softening.
Wiki User
∙ 11y ago
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What is difference between feeric alum and non ferric alum?
non ferric alum is the purer form of alum as compared to Ferric alum. Non ferric alum is used in pulp and paper industry while ferric alum is used in water treatment plants.
How would you test for potassium and sulfate ions in the alum?
by adding acids in alum crystals
Making of ferric alum?
Ferric alum
Can you use calcium chloride in place of alum?
For what?
How do you a prepare ferric alum indicator?
dissolve 40 grams of ferric ammonium sulphate in 100ml distilled water and add few drops of 6N nitric acid
What is the process of adding alum to water called?
alum water (AlH20)
How much alum do you use in swimming pool water?
Alum in a swimming pool clarifies the water. Alum is used in water treatment plants for this purpose and is in the drinking water suply in trace amounts. Alum in a swimming pool clarifies the water. Alum is used in water treatment plants for this purpose and is in the drinking water suply in trace amounts. Alum is a floculant it is cast over the surface of water, as it sinks to the bottom it attaches its self to impurity's in the water eventualy one will note that all of the water has cleared up except for a layer at the bottom, this is normally disposed of leaving clean uncontaminated water.
What is alum used for?
Alum is used in vaccines as an adjuvant. Alum is commonly used as a coagulant in water treatment. And its used for domestics water.
What can stop the effect of sodium fluoride poisoning?
Alum treatment of water
What alum is used to treat water?
Aluminum Sulphate acts as a coagulate in water treatment
What alum are used for?
it is used for water treatment in industries and water cleanong in domestic uses
What is difference between feeric alum and non ferric alum?
non ferric alum is the purer form of alum as compared to Ferric alum. Non ferric alum is used in pulp and paper industry while ferric alum is used in water treatment plants.
Why has loading name given to the process?
The process of adding alum to water to hasten sedimentation is called loading.
How would you test for potassium and sulfate ions in the alum?
by adding acids in alum crystals
What is the function of alum in the treatment of water?
Solutions containing alum may be used to treatcloth, wood and paper ... Alum is used to clarify water by neutralizing the electrical double layer .... the calculated quantity of potassium sulfate, well agitated, and the alum is thrown
How does water coagulate and why does water coagulate?
Water is coagulated by adding alum, which makes the lighter impurities heavy and helps them settle down. Water coagulation is done to purify water.
What is the side effect on human body when use alum in drinking water for purification of water .?
alum when mixed with water produces H2S gas which is highly toxic . although this is a gas and is released in air but some of it gets dissolved in water to produce H2SO4 acid and makes the water acidic. alum treated water needs more treatment through conventional water purifirs to remove any traces of H@S and H2SO4
