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98213 ENVIRONMENTAL COMPATIBLE SCALE INHIBITOR FOR THE MINING INDUSTRY

Picture for 98213 ENVIRONMENTAL COMPATIBLE SCALE INHIBITOR
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Product Number: 51300-98213-SG
ISBN: 98213 1998 CP
Author: W. Hater
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The formation of barium sulfate scale is one of the major challenges of the drainage of coal mines, as barium containing pit water is mixed with sulfate containing water before being pumped aboveground. Traditionally this has been overcome by the addition of scale inhibitors based on phosphoric acids. However, due to the inforcing legislation there is a need for a scale inhibitor with improved ecological behaviour. A new scale inhibitor based on polyaspartic acid is as safe and effective as conventional phosphorous containing inhibitors, but has a much higher environmental compatibility. Results of a three year field trial are presented. Keywords: barium sulfate, calcium carbonate, scale inhibitor, polyaspartic acid, phosphoric acids, coal mine, pit water; pump, water raising
The formation of barium sulfate scale is one of the major challenges of the drainage of coal mines, as barium containing pit water is mixed with sulfate containing water before being pumped aboveground. Traditionally this has been overcome by the addition of scale inhibitors based on phosphoric acids. However, due to the inforcing legislation there is a need for a scale inhibitor with improved ecological behaviour. A new scale inhibitor based on polyaspartic acid is as safe and effective as conventional phosphorous containing inhibitors, but has a much higher environmental compatibility. Results of a three year field trial are presented. Keywords: barium sulfate, calcium carbonate, scale inhibitor, polyaspartic acid, phosphoric acids, coal mine, pit water; pump, water raising
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