Research review evaluation of the potential contaminant intrusion into the water supply pipe

Abstract

    Water contamination is not only caused by water resources but also by the water distribution system,contaminants that exist in the soil environmentintrusion into the water environment through crack on the pipe wall.Even if the distance between sewer pipes and water supply pipes is installed to follow the standard, the risk of cross-contamination by contaminant in the leaking flow from the sewage network to the water supply can still occur when the wall pipe have a defect and negative pressure vaule in the pipe. Combined previous research results, analysis and assessing based on three risk factors pipe failure, negative pressure in the water hammer negative phrase and contaminant source fromthe waste water pipe, this paper will propose the solutions to evaluate the risk of contaminant instrusion into water supply pipes is the content of this article.