摘要
Abstract
Ensuring the biological safety of drinking water in the integrated urban and rural water supply network is of paramount importance.The mechanical structure and physicochemical properties of the biofilm on the pipe wall will affect the accumulation and release of pathogens in the pipe network.The biological characteristics and population composition under different residual chlorine concentrations are important indicators for evaluating the quality of drinking water.This study selected three common water supply pipes,namely PE pipes,steel pipes and ductile iron pipes,to study the safety of biomass under different residual chlorine concentrations.The results show that the biofilm of PE pipes is greatly affected by residual chlorine and is easier to control drinking water safety.It is recommended to use it in pipe networks with high chlorine demand,and ductile iron pipes should be used in pipe networks with low residual chlorine concentrations.The research results can provide a reference for the construction of water supply networks.关键词
城乡一体化/供水管网/生物安全Key words
urban-rural integration/water supply network/biosafety分类
建筑与水利
