EPA Science Inventory

Physiochemical Characterization of Five Iron Tubercles from a Single Drinking Water Distribution System: Possible New Insights on Their Formation and Growth

Citation:

GERKE, T. L., J. B. MAYNARD, M. R. SCHOCK, AND D. A. LYTLE. Physiochemical Characterization of Five Iron Tubercles from a Single Drinking Water Distribution System: Possible New Insights on Their Formation and Growth. Corrosion Science. Elsevier BV, AMSTERDAM, Netherlands, 50(7):2030-2039, (2008).

Description:

Physiochemical data on five iron tubercles from a single Distribution System (DS) are divided into two groups based on internal morphology and the predominate core iron mineral phases, α-FeOOH, γ-FeOOH, or Fe3O4, yet all three coexist in each tubercle. Conditions of formation of these phases indicate highly complex internal pH and Eh conditions, rates of oxidation, and differing ratios of Fe(II) and Fe(III). It has been concluded from this study that iron pipe tubercles exhibit a greater diversity within a single DS than previously thought and water quality parameters may not be the main controls of tubercle formation and growth.

Purpose/Objective:

SDWA

URLs/Downloads:

PHYSIOCHEMICAL CHARACTERIZATION OF FIVE IRON TUBERCLES FROM A SINGLE DRINKING WATER DISTRIBUTION SYSTEM: POSSIBLE NEW INSIGHTS ON THEIR FORMATION AND GROWTH   Exit

Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Projected Completion Date: 07/01/2008
Record Last Revised: 05/08/2009
Record Created: 03/04/2008
Record Released: 03/04/2008
OMB Category: Other
Record ID: 189119

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

WATER SUPPLY AND WATER RESOURCES DIVISION

TREATMENT TECHNOLOGY EVALUATION BRANCH