Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 11 ppt

... generated within this interaction volume (Figure 11. 7(a)). An under- standing of the size and shape of the interaction volume for a given specimen as in uenced by the beam parameters (i.e., instrumentation) ... size distribution and concentration of ground- water colloids without the necessity of altering the system during the sampling and handling processes before analysis....

Ngày tải lên: 11/08/2014, 10:22

... 117 0 112 6 1284 1251 1275 116 1 1220 1207 1301 1307 1291 1261 1375 1293 116 0 110 8 1212 116 4 117 5 111 6 116 7 116 0 1245 1261 1274 118 7 1362 1280 1041 1029 117 8 111 4 116 0 111 4 114 8 114 8 1228 1221 116 0 ... interaction of NOM with hydrophobic organic contaminants. The development of more hydrophobic regions and coiling of the C backbone could increase the s...

Ngày tải lên: 11/08/2014, 10:22

... Cosmochimica Acta, and Limnology and Oceanography. REFERENCES Adams, L.F. and Ghiorse, W.C., Characterization of extracellular Mn 2+ -oxidizing activity and isolation of an Mn 2+ -oxidizing protein from ... reactions and organic interactions in soils, in Manganese in soils and plants, Graham, R.D., Hannam, R.J., and Uren, N.C., Eds., Kluwer, Dor- drecht, 1988, p. 59...

Ngày tải lên: 11/08/2014, 10:22

... for In situ Treatment of Metal Contaminated Soils, EPA-542-R-97–004, USEPA, Washington, D.C., 1997. 3. Forstner, U., Land contamination by metals: Global scope and magnitude of problem, in Metal ... concentrations in the eluent were determined by placing 200 ml of the sample into a Bio-Tek multichannel (optical densitometer with fiber-optics technol- ogy; Bio-Tek Instruments, I...

Ngày tải lên: 11/08/2014, 10:22

... of basal surfaces populated with Si-O 2 and Al 2 -OH groups and the reactivity of basal surfaces populated with Al-OH −1/2 , Si-O –1 , SiAl-O −1/2 and other groups. Thus, the unreactivity of ... who performed a great deal of work since Pauling 3 introduced the basis for explaining mineral structure and reactivity. Our aims are to provide insight into the main processes...

Ngày tải lên: 11/08/2014, 10:22

... this point, the remainder of the chapter focuses on the combination of several analytical techniques in determining and quantifying Zn speciation in a soil contaminated as a result of smelting operations. ... a variety of techniques, including XRD, XAFS, and micro-focused XAFS to demonstrate that upon weathering of Zn-mineral phases in soils, Zn was taken up by the form...

Ngày tải lên: 11/08/2014, 10:22

... 5.82 E-2 — — 6.39 E-2 — — Mg 1.83 E-2 — — 2.47 E-2 — — Mn 5.46 E-4 1.79 E-3 856 1.15 E-4 2.28 E-3 868 Sr 2.39 E-4 1.28 E-5 74.9 2.77 E-4 1.03 E-5 98.1 Zn 2.37 E-5 4.56 E-5 155 2.80 E-5 6.68 E-5 ... G.Y., and Liu, J.C., Solubility of heavy metals in a contaminated soil: Effects of redox potential and pH, Water Air Soil Pollut., 90, 543, 1996. 11. Davranche, M. and Bollinger, J...

Ngày tải lên: 11/08/2014, 10:22

... pointed out that the HiB fraction mainly consisted of the N-containing group, including most amino acids, amino sugar, low-molecular-weight amines, and pyri- dine, while the HiA fraction contained ... 1050 to 113 0 cm − 1 (C-N stretch in amino acid and C-O stretch in polysac- charides and carboxyl); and a sharp peak at 620 to 700 cm − 1 ( C-H bending in aromatic...

Ngày tải lên: 11/08/2014, 10:22

... easily by using one of the latest technologies – Biofast – a kind of machine for filtering liquid wastes. Biofast are outstanding because of its effectiveness and efficiency. Biofast operates ... investment in waste- treatment-systems. Research and Development projects should also be invested in to find out the best technologies for reducing abatement cost and increasing...

Ngày tải lên: 23/09/2012, 15:38

... to immobilised mannose-6-phosphate receptor [27], indicating that either cystatin F contains mannose-6-phosphate or is co-localized with, and binding to, a mannose-6-phosphate containing protein. This favours ... affinity to Cm-papain, strongly indicating that the carbohydrate side chains do not affect the enzyme-binding properties of cystatin F and should, thus, not affect the inhibiti...

Ngày tải lên: 21/02/2014, 01:21