NDLI: Application of 1-hydroxyethylidene-1, 1-diphosphonic acid in boiler water for industrial boilers.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zeng, Bin Li, Mao-Dong Zhu, Zhi-Ping Zhao, Jun-Ming Zhang, Hui
Description	Country affiliation: China Author Affiliation: Zeng B ( Changsha University of Science & Technology, Changsha, Chinese Hunan, China.)
Abstract	The primary method used for boiler water treatment is the addition of chemicals to industrial boilers to prevent corrosion and scaling. The static scale inhibition method was used to evaluate the scale inhibition performance of 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP). Autoclave static experiments were used to study the corrosion inhibition properties of the main material for industrial boilers (20# carbon steel) with an HEDP additive in the industrial boiler water medium. The electrochemical behavior of HEDP on carbon steel corrosion control was investigated using electrochemical impedance spectroscopy and Tafel polarization techniques. Experimental results indicate that HEDP can have a good scale inhibition effect when added at a quantity of 5 to 7 mg/L at a test temperature of not more than 100 °C. To achieve a high scale inhibition rate, the HEDP dosage must be increased when the test temperature exceeds 100 °C. Electrochemical and autoclave static experimental results suggest that HEDP has a good corrosion inhibition effect on 20# carbon steel at a concentration of 25 mg/L. HEDP is an excellent water treatment agent.
File Format	HTM / HTML
ISSN	02731223
Issue Number	7
Volume Number	67
e-ISSN	19969732
Journal	Water Science & Technology
Language	English
Publisher	IWA Publishing
Publisher Date	2013-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Hydrology Etidronic Acid Chemistry Water Chemical Precipitation Chlorides Corrosion Dielectric Spectroscopy Industry Steel Temperature Journal Article
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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