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Title: Comparative Study of Polyacrylamide and Homopolymer of Acrylonitrile As Antiscaling Agent on Jalgaon Ground Water
Authors: Mishra, S
Patil, I D
Patil, Y P
Issue Date: Jan-2000
Publisher: NISCAIR-CSIR, India
Abstract: Hardness of water results in scale formation and affects efficiency and life span of heat exchangers and evaporators by salt deposition. Low molecular weight water soluble polymers are used to prevent scale formation. In the present study, polyacrylamide and polyacrylonitrile are used as scale inhibitors. Ground water is refluxed from 1 to 24 h with and without polymers. When only water is boiled the effect of salt precipitation is found to increase with increase in time of reflux. But when the polymers are added individually, the precipitation of salt decreases with increase in amount of polymer (200 ppm to 800 ppm) as well as with increase in reflux time for all of the polymer concentrations. It is also observed that polyacrylamide is more effective than polyacrylonitrile as an antiscaling agent. Polyacrylonitrile shows better results up to 12 h of refluxing and thereafter polyacrylamide appears better. Antiscaling activity of an inhibitor compound involves either diminution of the crystal growth rate and prevention of the homogeneous and / or heterogeneous germination mechanism.
Page(s): 44-48
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.59(01) [January 2000]

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