Download or read book An Evaluation of Ground Water Surface Water Interactions in Saginaw Bay Lake Huron with Implications for Trace Metal Cycling written by Jonathan James Kolak and published by . This book was released on 2000 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Ground Water Surface Water Interactions in Saginaw Bay Lake Huron with Implications for Trace Metal Cycling written by Jonathan James Kolak and published by . This book was released on 2000 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the groundwater surfacewater interactions workshop written by and published by DIANE Publishing. This book was released on 2000 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survey of Chemical Factors in Saginaw Bay Lake Huron written by Verne E. Smith and published by . This book was released on 1977 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Sources of Chloride to Surface Waters in the Muskegon River Watershed written by Nathaniel Paul Saladin and published by . This book was released on 2005 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Sampling and Field filtration Methods for the Analysis of Trace Metals in Ground Water written by Karl F. Pohlmann and published by . This book was released on 1994 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals in Groundwater written by Herbert E. Allen and published by CRC Press. This book was released on 2020-11-25 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal contamination of groundwater results from many human activities, including agriculture, mining, and the disposal of municipal waste and fly ash. Metals in Groundwater describes the transport of metals to groundwater from these and other sources. It also covers risk assessment of metals in groundwater, coupling of chemicals and hydrological models, and sorption of metals onto soils and clays. The speciation of metals is examined in detail. The book will interest researchers in environmental quality, mining, and agriculture; consultants; industry professionals; and personnel within regulatory agencies.

Download or read book Selected Geochemical Characteristics of Ground Water from the Saginaw Aquifer in the Central Lower Peninsula of Michigan written by B. D. Meissner and published by . This book was released on 1996 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground water Contamination and Legal Controls in Michigan written by Morris Deutsch and published by . This book was released on 1963 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Results of Quality control Sampling of Water Bed Sediment and Tissue in the Western Lake Michigan Drainages Study Unit of the National Water Quality Assessment Program written by Sharon Anne Fitzgerald and published by . This book was released on 1997 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ion Interactions at the Mineral water Interface During Biogeochemical Iron and Manganese Cycling written by Margaret A. G. Hinkle and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biogeochemical cycling of iron and manganese involves the reductive dissolution and oxidative precipitation of Fe(III) and Mn(IV/III) oxides. Biogenic Fe(III) and Mn(IV/III) oxides are often characterized by high surface areas and therefore high sorptive capacities. As a result, these minerals can substantially alter the chemistry of natural waters and the availability of micronutrients in soils and sediments by scavenging trace metals. Recent research indicates that the adsorption of aqueous Fe(II) onto Fe(III) oxides involves oxidative adsorption, electron transfer, and subsequent reductive dissolution at another surface site [a process collectively referred to as 'electron transfer-atom exchange' (ET-AE)]. Aqueous Mn(II) adsorption onto Mn(IV/III) oxides likely also involves oxidation, but because of the potential for Mn(II) Mn(IV) comproportionation reactions and the accessibility of nearly all atoms in Mn(IV/III) oxide sheets to reaction with aqueous solution, aqueous Mn(II)-solid Mn(IV/III) interactions are expected to differ substantially from the analogous Fe system. These complex interactions between reduced and oxidized forms of Fe (and Mn) occur at redox interfaces and can exert substantial effects on trace metal fate. These processes may, in turn, be affected by ions common in natural systems. The main objective of this dissertation is to determine how interactions between ions commonly present during biogeochemical Fe or Mn cycling in natural systems [e.g., phosphate, sulfate, Ni, Zn, Fe(II), or Mn(II)] alter one another's interactions with Fe and Mn oxide surfaces. This research specifically seeks to (1) identify the mechanisms through which the oxoanions phosphate and sulfate alter Fe(II) adsorption onto Fe oxides; (2) determine how oxoanion-Fe(II) interactions alter trace metal partitioning between the mineral surface, bulk mineral structure, and aqueous phase; (3) characterize the effect of Mn(II) on phyllomanganate sheet structures; and (4) examine the effect of Mn(II) on trace metal sorption on phyllomanganates. Macroscopic adsorption edges show that Fe(II) cooperatively co-adsorbs with sulfate and phosphate on Fe(III) oxide surfaces. Both attenuated total reflectance Fourier transform infrared spectroscopy and surface complexation modeling indicate that this cooperative adsorption behavior arises from a combination of ternary complexation and electrostatic interactions. The formation Fe(II)-oxoanion ternary complexes suggests that processes associated with Fe(II) Fe(III) ET-AE reactions may be altered in the presence of oxoanions, depending on the stability and identity of the ternary complex that forms. The effect of these oxoanions on one such process, trace metal repartitioning, was investigated in detail. Sulfate and, to a larger degree, phosphate suppress Ni cycling through hematite during Fe(II)-catalyzed recrystallization by altering Ni adsorption, structural incorporation, and release back into solution. Conversely, Ni cycling through goethite is unaffected or enhanced by phosphate and sulfate. This dissertation also investigated Mn(II) effects on phyllomanganate structure and the fate of associated trace metals. Powder X-ray diffraction and X-ray absorption fine structure spectroscopic measurements indicate that Mn(II) causes distortion of the sheet structure of Mn(IV/III) oxides and alters sheet stacking at low pH, but has a minimal effect on phyllomanganate structures at circumneutral pH. As a result, Ni and Zn adsorption mechanisms on phyllomanganates are altered in the presence of aqueous Mn(II) at pH 4, but exhibit few changes at pH 7. The Ni and Zn adsorption behaviors with aqueous Mn(II) suggests that Mn(II) alters phyllomanganate reactivities by decreasing phyllomanganate vacancy content. These results emphasize the importance of understanding adsorbate interactions in systems with coexisting reduced and oxidized Fe or Mn, as under such conditions Fe and Mn oxide minerals undergo dynamic structural transformations. Trace metal uptake and partitioning between Fe oxide surfaces can be altered in systems with appreciable amounts of phosphate or sulfate (e.g., riparian zones, estuaries, or marine sediments). The complex interactions at iron oxide surfaces must be considered when evaluating trace metal fate at redox interfaces or interpreting trace metal proxies in the rock record to reconstruct ancient water compositions. The Mn(II)-induced phyllomanganate structural changes observed here suggest a relationship between water composition and the reactivity of Mn oxides as adsorbent materials. The identified phyllomanganate restructuring may also modify the capacity of Mn oxides to serve as oxidants of inorganic and organic compounds in aquatic systems. This dissertation highlights the complex structural and chemical processes that occur via cooperative and competitive interactions of ion at iron and manganese oxide surfaces.

Download or read book An Approach for Characterizing the Biogeochemical Fingerprints of Land Use in Surface Waters written by Karen G. Wayland and published by . This book was released on 2001 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground water Flow and Quality Near the Upper Great Lakes Connecting Channels Michigan written by John L. Gillespie and published by . This book was released on 1989 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trace Metal Speciation Under Equilibrium Conditions written by Christina C. Meshaw and published by . This book was released on 1981 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: