The Influence of Cement Mortar Lining Deterioration on Water Quality in a Simulated Reclaimed Water Distribution System

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Ni, Weina^1 ; Yang, Fan^1^2 ; Yang, Lei^1 ; Li, Jing^1 ; Shi, Pu^1 ; Tian, Chunyu^1 ; Nie, Jiamin^1

College of Engineering and Technology, Tianjin Agricultural University, Tianjin

300384, China^1

China-Japan (Tianjin) Collaborative Research Center for the Rural Environment and Resource, Tianjin Agricultural University, Tianjin

300384, China^2

关键词: Cement mortar linings;    Corrosion effects;    Erosion effects;    Hydration products;    Microbial biomass;    Re-claimed water;    Reclaimed water distribution systems;    Simulated distribution systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/4/042103/pdf
DOI  :  10.1088/1755-1315/295/4/042103

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the chemical and microbial erosion effects of reclaimed water on cement mortar lining in a simulated distribution system were investigated. Regular monitoring for the effluent pH, metal ions, nutrients and microbial biomass were conducted. Moreover, X ray diffraction (XRD) analysis for cement mortar lining were also tested to discuss the cement mortar lining deterioration. The results showed that reclaimed water was easy to breed microorganisms during transportation and distribution and had strong corrosion effect for cement mortar lining. The erosion of hydration products in cement mortar and the leakage of those components increased the concentration of effluent pH and metal ions, which would affect the reuse of reclaimed water.