Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"permeable reactive barriers"”.
-
Design Methodology for Permeable Reactive Barriers Combined With Monitored Natural Attenuation
Permeable reactive barrier (PRB) technology is increasingly considered for in situ treatment of contaminated groundwater; however, current design formulas for PRBs are limited and do not properly account for all major physical and attenuation processes driving remediation. This study focused on …
-
Characteristics and Mechanisms of Heavy Metal and MTBE Adsorption on Zeolites and Applications in Permeable Reactive Barriers
… have been developed for groundwater remediation. Permeable reactive barriers (PRBs) filled with reactive media are one of the most promising in-situ technologies for groundwater remediation due to their low costs and suitability for the immobilization of multiple contaminants via adsorption, …
-
Permeable Reactive Concrete For Enhanced Heavy Metal Removal With Optimization Of Individual Components
… have on the surrounding peoples and environment. Permeable reactive barriers (PRBs) are an effective method of remediation the use a reactive media to passively remove contaminates. This research primarily investigated the use of permeable reactive concrete (PRC), a new category of PRBs. In the …
-
Electrochemical Deactivation of Nitrate, Arsenate, and Trichloroethylene
… common co-contaminant at sites remediated using permeable reactive barriers (PRBs). Therefore, understanding nitrate reactions with ZVI is important for understanding the performance of PRBs. This study investigated the reaction mechanisms of with ZVI under conditions relevant to groundwater …
-
Isotopic fractionation of chromium and uranium during abiotic and microbial Cr(VI) reduction and microbial U(VI) reduction
… sediments from an active barrier) occurring at Permeable Reactive Barriers and by a group of metabolically diverse bacteria (G. sulfurreducens, Shewanella sp. (Neckar River), P stutzeri DCP-Ps1 and D. vulgaris). The results can be used to interpret Cr isotope data from a wide range of …
-
Bioremediation of petroleum hydrocarbons using microbial fuel cells
… (e.g. pump and treat, electrobioremediation or permeable reactive barriers) or integrated with existing infrastructure such as monitoring wells or piezometers.
-
Separating the Kinetic and Sorption Parameters of Mixed Chlorinated Solvents in Contact with Granular Iron
… health. Granular iron, the most common medium in permeable reactive barriers (PRBs), is very effective at removing organic chemicals, such as chlorinated solvents and nitroaromatic compounds, from groundwater. In an effort to improve barrier designs, studies have been undertaken to examine the …
-
Use of electrokinetic and reactive barriers to treat heavy metals-contaminated soils
The combined use of electrokinetic (EK) and reactive barrier (RB) of transformed red mud (TRM) (a by-product of bauxite refinement for alumina production) for the remediation of low permeability contaminated soils by chromium and arsenic was investigated. The combination of EK with RB is a possible …
-
Novel amorphous silica and silica xerogels for the adsorption of organic pollutants from water
… as filling of filters, cartridges or permeable reactive barriers.
-
Green Technologies and Sensor Networks for BMP Evaluation in Stormwater Retention Ponds and Wetlands.
… in reducing total phosphorus, soluble reactive phosphorus, total nitrogen, organic nitrogen, ammonia, nitrates + nitrites, turbidity and chlorophyll a species as measured from the influent to effluent ends of the MBR. The results of the experiments indicate that MBRs may be combined …