Leachables inorganic

Kristensen, S. P., Mathiasen, J., Lassen, J., Madsen, H. B. and A. Reenberg (1994). Comparison of the Leachable Inorganic Nitrogen Content in Organic and Conventional Farming Sustems. Acta Agriculturce Scandinavica, Seet. B. Soil and Plant Sei., No. 44, 37-46. 

Speciated Components Little information is available for RMs with respect to the chemical forms or species in which elements occur. In the first approximation, bioavaila-ble, extractable, or leachable levels of elements are of interest. Secondly, at a higher degree of sophistication, data on the levels of the actual species or inorganic moieties such as nitrate, ammonium, phosphate, bromide, bromate, iodide, iodate, and molecular species of which the elements are constituents would be of relevance to those conducting mechanistic and speciation research. Reference materials that are certified for extractable elemental concentrations are not available to monitor the usual procedures in soil science based on extraction. 

Wu, E. J. Chen, K. Y. 1987. Chemical Form and Leachability of Inorganic Trace Elements in Coal Ash. Electric Power Research Institute Report, EA-5115, Palo Alto, CA. 

Thus far, this review has focused completely on organic extractables and leachables, however it is also possible to have inorganic extractables and leachables associated with pharmaceutical packaging and drug products. Inorganic extractables/leachables can arise from residual... 

Inorganic extractables/leachables would include metals and other trace elements such as silica, sodium, potassium, aluminum, calcium, and zinc associated with glass packaging systems. Analytical techniques for the trace analysis of these elements are well established and include inductively coupled plasma—atomic emission spectroscopy (ICP-AES), ICP-MS, graphite furnace atomic absorption spectroscopy (GFAAS), electron microprobe, and X-ray fluorescence. Applications of these techniques have been reviewed by Jenke. " An example of an extractables study for certain glass containers is presented by Borchert et al. ". ... 

Ash Product Incineration of combustible materials produces a volume reduction, which can lead to higher concentrations of inorganic contaminants in the ash product and create leachability problems. Incineration of most contaminated soils produces only modest volume reductions, so inorganics are not significantly concentrated in the treated soil. 

A six-step extraction method was used to operationally discriminate the chemical species of P (e.g., authigenic apatite and refractory organic P). The six-step extraction procedure separates the major reservoirs of sedimentary P into six pools, including loosely adsorbed P (LSor-P), iron-bound inorganic P (Fe-P), leachable organic P (Lea-OP), authigenic apatite (CFAP), detrital apatite (FAP), and refractory organic P (Ref-OP). The location of studied cores was as shown in Fig. 3.35. 

Success has been reported for the solidification of both inorganic wastes and organic wastes (including oily sludges) with silicates. The advantages and disadvantages of silicate solidification are similar to those of Portland cement discussed above. One consideration that is especially applicable to fly ash is the presence in some silicate materials of leachable hazardous substances, which may include arsenic and selenium. 

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