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Macalady L. D., Smith S. K., Ranville F. J. Acid mine drainage; streambed sorption of copper, cadmium and zinc, Colorado Water Resources Research Institute, Completion Report , No. 154, 1990. Clement R. E., Eiceman G
Mesoporous silica SBA-15 without and with modification of surface by grafting with aminoalcoxysilanes is prepared is the experiment. The prepared samples are characterized by adsorption/desorption of nitrogen. Results confirms the prepared materials having a specific surface area up to 846m2/g, which are improved for the capture of metals by grafting with the amino group. The sorption of Cu2+ cations as well as SO4 2− anions from the acidic solution is investigated. The modified mesoporous silica is confirmed to have better sorption capacity than unmodified mesoporous silica.
. Sorption studies of Zn(II) and Cu(II) onto vegetal compost used on reactive mixtures for in situ treatment of acid mine drainage, Water Research , Vol. 39, No. 13, 2005, pp. 2827–2838. Ayora C
1994 Water-solid interactions: I. A technique for studying moisture sorption/desorption International Journal of Pharmaceutics 114 55 – 64
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.
Water sorption isotherms of some building materials Drying Technology 23 289 – 303 . A Lakatos
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.
Physics , 2002 Sept 26–30, Dresden, Germany, pp. 103 – 112 . [2] Lakatos Á. , Kalmár F. ( 2013 ), Analysis of water sorption and thermal
Energy and Combustion Science 30 , 477 – 499 . [7] Lakatos A. , Kalmár F. ( 2013 a), Analysis of water sorption and thermal conductivity of
All composites based on natural fibers absorb moisture in humid atmosphere and when immersed in water or capillary action. Therefore, one of the major drawbacks of polymer fibers is their high availability to moisture sorption and their heterogeneity, which leads to a weak interface between the fibers and matrix and a poor transfer of the applied stress between the materials, resulting to reduction of physico-mechanical properties. An experimental investigation was conducted to testing the water absorption of hemp composites with MgO-cement binder and its influence on the physico-mechanical and thermal characteristics of composites. The achieved results of composites indicate that water absorption test has deteriorative influence on observed properties due to the degradation of the fibre-matrix interface.
