HE Nan,GUO Hao,LIU Jing,et al.Research Progress on Enrichment and Release of Metal Pollutants in Water Supply Pipelines[J].China Water & Wastewater,2022,38(No.2):21-29.
Research Progress on Enrichment and Release of Metal Pollutants in Water Supply Pipelines
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
No.第2
Page:
21-29
Column:
Date of publication:
2022-01-17
- Keywords:
- water supply pipeline; corrosion deposits; metal pollutants
- Abstract:
- Under a series of physical, chemical, and biological actions, metal pollutants were generated during the corrosion of metal pipes. Meanwhile, trace metal pollutants in the finished water may deposit on the pipe wall during the distribution of drinking water. When the environmental conditions of water in pipelines change, the metal pollutants were directly released from the deposits or released into the water by other metal oxides, which poses a potential threat to drinking water safety. The characteristics of metal pollutants in the deposits of pipeline corrosion is reviewed, which may exist in the pipeline and/or on the pipeline wall, and their forms are summarized. The effects of water quality, hydraulic, microorganisms and disinfectants on the enrichment and release process of metal pollutant are explored, and the mechanisms of enrichment and release of metal pollutants from the deposits are discussed. Finally, based on the research status, the future research direction is proposed to provide reference and help to ensure water safety and improve related research.
Last Update:
2022-01-17