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Research on corrosion mechanism of water distribution system

本站小编 哈尔滨工业大学/2019-10-23

Research on corrosion mechanism of water distribution system

ZHANG Xin-yu1,2, LI Xin3, QIN Wu3, XU Wen-wen1, YUAN Yi-xing1

1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.School of Civil Engineering and Architecture,University of Jinan,Jinan,250022,China;3.School of Chemical Engineering & Technology,Harbin Institute of Technology,Harbin 150090,China



Abstract:

Pipes serving for water distribution system for different years in northern city,were chosen as objectives for study.The shape and component of corrosion scales were measured,and formation mechanism of corrosion was also analyzed.The corrosion mechanism of pipes was studied on the sides of electrochemistry and microbe.The solution to eliminate corrosion scales in water distribution system was also proposed.The results show that the specific surface areas of five corrosion scales are between 41.35 and 132.3 m2/g and the dimension of corrosion scales enlarge with the increase of serving age,which could induce the decrease of water flow cross-section.

Key words:  corrosion  water distribution system  water quality

DOI:10.11916/j.issn.1005-9113.2011.01.022

Clc Number:TG172

Fund:


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