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University of Texas at Austin. — In: Lake, C.B., R.K. Rowe 2005: A comparative assessment of volatile organic compound (VOC) sorption to various types of potential GCL bentonites. — Geotextiles and Geomembrans, 23, pp. 323 – 347
61 73 Morera, M.T., J.C. Echeverría, C. Mazkarián, J.J. Garrido 2001: Isotherms and sequential extraction procedures for evaluating sorption and distribution of heavy metals in
P.I. Gassman 2005 Impact of highly basic solutions on sorption of Cs + to subsurface sediments from the Hanford site, USA Geochimica et Cosmochimica Acta
The aim of the presented study was to prepare the phosphate sorption isotherms of 20 European volcanic soil profiles and some other Hungarian and German volcanic soils (n = 114) used in the experiment and to establish the soil characteristics determining the phosphate sorption capacity of these soils. The Langmuir isotherm well describes the phosphate sorption of European volcanic soils at bright concentration interval 0–600 mg·dm -3 P. The calculated phosphate adsorption maximum (P max ) is an excellent soil property for characterizing the surface activity of soils developed on volcanic parent material. The calculated phosphate sorption maxima of soils included in the experiment ranged from 0 to 10.000 mg P·kg -1 . Some of the volcanic soils sorbed a high ratio of the added phosphate at low concentrations, while others sorbed somewhat less. The difference in the phosphate binding affinity of soils caused the differences in the shape of the Langmuir adsorption isotherms. P retention % is a WRB diagnostic requirement of andic soil horizon. It was supposed that the phosphate sorption maximum (P max ) gives a better characterization of the surface reactivity of volcanic soils. As it was predicted, oxalate soluble Al is the most important soil property, which dominantly (in 73%) explained the phosphate sorption ability of European volcanic soils.
The aim of this paper is to introduce the horizontal sorption technique and to demonstrate its applicability for the observation of porous materials and effect of surface treatments. The horizontal sorption testing method is a new technique, which was developed to facilitate the in-situ assessment of water absorption properties of porous materials. This new technique has some advantages compared to the already existing in-situ testing methods (Karsten pipe method, contact sponge method). It is easy to use, requires no supplementary electric devices, and tight attachment of the measuring tool onto the surface is not necessary. Moreover, the absorption of the water can be easily initiated and then documented. In the present paper several different ways of application of the technique are shown. The testing method was proven to be appropriate for the evaluation of the rate of water absorption, for determination of the sedimentary fabric of the rock (layers and orientation of the fabric results from its formation), as well as the effective depth and nature of three different types of surface treatments. These treatments were (i) organic and inorganic molecules activating bacteria in the stone, (ii) a conventional stone consolidant and (iii) a biomineralizing protective treatment. The new testing method provided valuable information about the nature of all the three treatments. Therefore the horizontal sorption method (HSM) seems to be a highly promising tool for the analysis of porous materials.
Gödöllői barna erdőtalajon adszorpciós kísérletben vizsgáltuk a talaj, illetve 2,5, 5 és 10% komposzt bekeverésével létrehozott keverék maximális Cu- és Zn-megkötő képességét. Vizsgálatunk szerint a bekevert komposzt mennyiségének növekedésével jelentősen megnőtt a talaj Cu-, illetve Zn-megkötése. Angolperje csíranövény teszt segítségével meghatároztuk a fenti talaj–komposzt keverékekben a növények hajtásával 10 nap talaj–gyökér kontaktus esetén felvett Cu- és Zn-mennyiségeket. Az ökotoxikológiai teszt azt mutatta, hogy a környezetvédelmi határérték kétszerese sem a Cu-, sem a Zn-terhelés esetén nem mutatott szignifikáns negatív hatást az angolperje hajtásának száraz tömegére. Ugyanakkor a növekvő komposztmennyiség a réz felvehetőségét kis mértékben, a cink felvehetőségét valamivel nagyobb mértékben lecsökkentette. Ezzel szemben a forróvíz-oldható Cu-mennyiség csak kis mértékben, a Zn-mennyiség viszont jelentősen megnövekedett a növekvő komposztmennyiség hatására, jelezve, a forróvíz-oldható szerves anyag nehézfém-mobilizáló hatását.
on agricultural production 1994 Elkhatib, E.A., G.M. Elshebiny, A.M. Balba 1991: Lead sorption in calcareous soils
. U. Alonso C. Degueldre 2003 Modelling americium sorption onto colloids: effect of redox potential Colloids and Surfaces A
Expert System for Surface and Sorption Thermodynamics . – http://www.hzdr.de/db/RES3T.queryData. IPCC 2013 : Summary for policymakers . – In: Stocker , T.F. , D. Qin , G.-K. Plattner , M. Tignor
–London–Tokyo . Ainsworth , C. C. et al., 1994 . Cobalt, cadmium, and lead sorption to hydrous iron oxide residence time effect . Soil Sci. Soc. Am. J. 58 . 1615 – 1623
