'Sorption' diaporamas de présentation

1.65k views • 112 slides

Three-Dimensional Phosphorus Sorption by Drinking Water Treatment Residuals Konstantinos C. Makris

Three-Dimensional Phosphorus Sorption by Drinking Water Treatment Residuals Konstantinos C. Makris. Rationale. Need long-term solutions to reduce excess soluble P in soils and waters. Drinking water treatment residuals (WTRs) seem a potential long-term solution. Why use WTRs: Cost-effective

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Wetlands of Karnataka: Bioremediation Options

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Sorption of Radionuclides to Tuff in the Presence of Shewanella oneidensis (MR-1)

Sorption of Radionuclides to Tuff in the Presence of Shewanella oneidensis (MR-1). Sherry Faye 1 , Jen Fisher 2 , Duane Moser 2 , Ken Czerwinski 1. 1 University of Nevada, Las Vegas Radiochemistry PhD Program 2 Desert Research Institute, Las Vegas, NV. Outline.

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P sorption Characteristics On Co-precipitated Amorphous Al-Fe Hydr(oxides)

P sorption Characteristics On Co-precipitated Amorphous Al-Fe Hydr(oxides). Omar Richard Harvey. Rationale. P sorption capacity strongly correlated with Al and Fe hydr(oxide) content in soils (Freese et al. 1992) and wetlands (Reddy et al. 1995).

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Alternative equation for sorption data interpretation Patrick van Hemert & K-H.A.A. Wolf

Alternative equation for sorption data interpretation Patrick van Hemert & K-H.A.A. Wolf. International Symposium CBM, Tuscaloosa. May 25, 2006. Objectives. For experts: Introduce alternative equation for sorption interpretation Simpler calculation Easier error analysis For non-experts:

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General form of the ADE:

General form of the ADE:. sink/source term. Chemical sink/source term. Simple form of the ADE. Uniform 1D flow; longitudinal dispersion; sink/source term. General form of the ADE:. sink/source term. Chemical sink/source term. We will consider two types of chemical reactions

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Environmental Molecular Science Institute University of Notre Dame

Environmental Molecular Science Institute University of Notre Dame Actinides and Heavy Metals in the Environment The Formation, Stability, and Impact of Nano- and Micro-Particles. Principal Investigators: Jeremy Fein, Peter Burns, Patricia Maurice Civil Engineering and Geological Sciences.

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Carbon Nanotubes for Adsorption of Organic Contaminants

Carbon Nanotubes for Adsorption of Organic Contaminants. By Dr. Shamsa Kanwal. CNTs. Since the first discovery in 1991 ( Iijima , 1991), CNTs have attracted enormous research attention in various scientific communities.

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Determination of low b -activity of 99-technetium in the bentonite leachate

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Adsorption and Release of Contaminants onto Engineered Nanoparticles

Adsorption and Release of Contaminants onto Engineered Nanoparticles. Mason Tomson Civil and Environmental Engineering Department Rice University Houston, TX Start July 1, 2004. Objective and Benefit.

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Nitrate removal by modified lignocellulose

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[Se]in and [Se]out : initial and final supernatant Se concentration

No association of Se 0 with purified Boom Clay Humic Acid (p-BCHA). pH-pe diagram [Se] tot = 10 -6 mol l -1 (NEA database project 2006). Se 0. Se(IV). Se 0 + p-BCHA + Fe(II); pellet. Se 0 + p-BCHA ; pellet. Se(IV) + p-BCHA + N 2 H 4 ; spn; pH 7.25.

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Experimental Methods

Modeling the relationship between sorption and residence times. Melanie A. Mayes (mayesma@ornl.gov), Sindhu Jagadamma (jagadammas@ornl.gov), W. Mac Post (wmpostiii@ornl.gov), Joshua Frerichs (frerichsj@ornl.gov), and Gangsheng Wang (wangg@ornl.gov)

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Force [N/m]

AFM-colloidal probe technique. approach. approach. retraction. retraction. PB3-10. Interaction of carboxylate-modified latex colloids with muscovite surfaces. Introduction

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Interaction of 2,4,6-Trinitrotoluene with Clay Minerals and Humic-Clay Complexes

Interaction of 2,4,6-Trinitrotoluene with Clay Minerals and Humic-Clay Complexes.

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Soil Mid Infrared Spectroscopy

Increasing Frequency. 50,000 cm -1. 12,820 cm -1. 4,000 cm -1. 400 cm -1. X-Ray. UV. Vis. NIR. MIR. FIR, Microwave. 200 nm. 380 nm. 780 nm. 2,500 nm. 25,000 nm. Increasing Wavelength. Figure 1: The electromagnetic spectrum.

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Objectives

Series Kd r 2 Kd correlations Lanton 2.1 0.98 Prob. Duval 1.3 0.99 Sand 0.03 Brownfield 0.9 0.99 Silt 0.07 Greenville 2.4 0.99 Clay 0.03 Dothan 1.4 0.99 pH 0.67 Cecil 1.4 0.98 CEC 0.23 Tifton 1.3 0.99 OM 0.17 . Introduction

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Acknowledgements

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