Establishment of a Practical Approach for Characterizing the Source of Particulates in Water Distribution Systems

Abstract

Water quality complaints related to particulate matter and discolored water can be troublesome for water utilities in terms of follow-up investigations and implementation of appropriate actions because particulate matter can enter from a variety of sources; moreover, physicochemical processes can affect the water quality during the purification and transportation processes. The origin of particulates can be attributed to sources such as background organic/inorganic materials from water sources, water treatment plants, water distribution pipelines that have deteriorated, and rehabilitation activities in the water distribution systems. In this study, a practical method is proposed for tracing particulate sources. The method entails collecting information related to hydraulic, water quality, and structural conditions, employing a network flow-path model, and establishing a database of physicochemical properties for tubercles and slimes. The proposed method was implemented within two city water distribution systems that were located in Korea. These applications were conducted to demonstrate the practical applicability of the method for providing solutions to customer complaints. The results of the field studies indicated that the proposed method would be feasible for investigating the sources of particulates and for preparing appropriate action plans for complaints related to particulate matter.

Study on the Adsorption Relationship between Organic Matter and Particulate Matter in Water Distribution Pipes

“…The rapid development of industry and agriculture has increased the standard of living, but has also brought more toxic substances into the water supply, constantly expanding and intensifying the scope of water pollution [12]. Research on secondary pollution in drinking water and water transportation processes must consider particulate organic matter (POM) in water [13][14][15][16][17]. A multi-tracer study was carried out on the impacts of Water 2023, 15, 859 2 of 9 reservoirs on the sources and transport of riverine organic carbon in the Karst area [18].…”

In-Depth Investigation of Statistical and Physicochemical Properties on the Field Study of the Intermittent Filling of Large Water Tanks

“…However, the effect of localized high demand on pressure fluctuations has not been quantitatively investigated. In water quality measures, various types of deposits have been reported in distribution mains; these include sediments on pipes, slimes on pipe surfaces, and adhesive corrosion products [6][7][8][9][10]. Under normal operating conditions, these deposits are attached to parts of the distribution system where the hydraulic conditions are favorable.…”

“…Under normal operating conditions, these deposits are attached to parts of the distribution system where the hydraulic conditions are favorable. Under high-flow conditions, however, the resulting high velocity can disturb the deposited materials, inducing aesthetic and/or microbial problems by the suspension of particles of the deposits in drinking water [9][10][11][12]. The effects of localized high demand on turbidity and particle counts can be significant for the intermittent water replenishment of large-demand customers.…”