In-line treatment of metal contaminated storm water by charred microporous polymers
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Authors
Kliem, John A.
Subjects
Advisors
Date of Issue
1998
Date
Aug-98
Publisher
Monterey California. Naval Postgraduate School
Language
en_US
Abstract
This paper examines the feasibility of using an in-line storm water treatment system to remove heavy metals from storm water discharges. There are a number of commercially available microporous carbons that have a demonstrated affinity for the uptake of metals. Industry currently utilizes in-line storm water treatment processes to remove settle able solids, oils and greases; these processes could easily be altered to include the adsorption of dissolved contaminants such as metals. Two charred microporous polymers, Supelcarb(TM) and Carboxen-1011(TM) were measured for adsorption capacity for Cu(2+) and Ni(2+) removal in both batch and flow through experiments. Results indicate Cu(2+) was removed but not Ni(2+). A scenario was conducted based on experimentally derived Cu(2+) adsorption results to estimate the filter service time for the adsorbers tested when placed with in existing in-line storm water treatment system and exposed to Cu(2+) contaminated storm water. Storm water flows from 1, 2, 5, and 10 years storms were evaluated. Filter service time for the 1 year storm was 3.5 and 6 hours for Supelcarb(TM) and Carboxen-1011(TM) respectively. As storm intensity increased the filter service time decreased. This scenario illustrates that Supelcarb(TM) and Carboxen-1011(TM) are not good adsorbers in this situation. However, removal of heavy metal contaminated storm water by charred microporous polymer adsorption is a viable pollution control strategy.
Type
Thesis
Description
CIVINS (Civilian Institutions) Thesis document
Series/Report No
CIVINS (Civilian Institutions) Theses and Dissertations
Department
Civil and Environmental Engineering
Organization
CIVINS (Civilian Institutions)
Identifiers
NPS Report Number
Sponsors
Funder
U.S. Naval Postgraduate School, CIVINS program
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.