MEHMET HAMURCU, H. Hüseyin ÖZAYTEKİN, Fariz D. MIKAİLSOY, Sait GEZGİN

Bazı kil tiplerinin bor adsorpsiyon kapasitelerinin belirlenmesi

Bu araştırma İç Anadolu Bölgesi tarım topraklarında hakim durumda olan bazı kil tiplerinin farklı pH aralıklarındaki bor adsorpsiyon izotermlerini belirlemek üzere yürütülmüştür. Bu amaçla simektit ve paligorskit + kaolinli' ten oluşan iki farklı örnek tipi kullanılmıştır. Langmiur ve Freundlich adsorpsiyon izotermi modellerine göre değerlendirilen bor adsorpsiyonunun Langmiur modeli ile daha iyi ifade edildiği tespit edilmiştir.Her iki örnekte de çözelti pH' sının bor adsorpsiyonu üzerine oldukça etkili olduğu tespit edilmiştir. pH artıkça bor adsorpsiyonunun belirli bir noktaya kadar arttığı daha sonrada düştüğü görülmüştür. Langmiur izoterminde k ve b, parametrelerinden belirlenen en düşük bor adsorpsiyonu saf smektitten oluşan örnekte pH 7' de (8.60 $\mu$ g B $g^{-1}$) gerçekleşmiş ve buna bağlı olarak en fazla bağlanma enerjisi (k) pH 10'da (50.45 $\mu g^{-1}$) görülmüştür. Paligorskit + kaolinitte en düşük bor adsorpsiyonu pH 5' de (5.58 $\mu$ g B $g^{-1}$), en fazla bağlanma enerjisi de pH' 10 da (51.36 ml $\mu g^{-1}$) belirlenmiştir.

Anahtar Kelimeler:

tutunma izotermi, İç Anadolu Bölgesi, tarım toprakları, adsorpsiyon, kil, bor

Determination of Boron adsorpsiyon capacity of some clay types

This research was conducted to determine boron adsorption isotherm for different pH values of some clay types where founded the most in the soils of Central Anatolia Region. For this purpose, two different samples smectit and Paligorskit + kaolinit were used. Langmiur and Freundlich adsorption isotherm models first were evaluated and Langmiur model was determined more appropriate comparison to Freundlich. In both samples, the pH of solution was highly effective on boron adsorption and as the pH increased, boron adsorption also increased. The lowest boron adsorption determined from k and b parameters in Langmiur isotherm for pure smektit sample was obtained at pH 7 (8.60 pg B $g^{-1}$) and the greatest binding energy (k) was seen at pH 10 (50.45 ml $\mu g^{-1}$). In sample contained Paligorskit + kaolinit, the lowest boron adsorption was at pH 5 (5.58 $\mu$ g B $g^{-1}$) whereas, the highest energy was determined atpH 10 (51.36 ml $\mu g^{-1}$)

Keywords:

sorption isotherms, Central Anatolia Region, agricultural soils, adsorption, clay, boron,

PDF

___

Beckwith, R.S., and Reeve, R., 1964. Studies on solu- ble silica in soils. II. The release of monosilicic acid from soils. Aust. J. Soil res. 2:33 - 45
Berger, K.C., 1949. Boron in soils and crops. Adv. Argon 1: 321-351.
Bhatnagar, R.S.,Attri, S.C.,Mathar, G.S., and Chaud- hary, R.S., 1979. Boron adsorption equilibrium in soils. Ann. Arid. Zone 18:86-95.
Bingham, F.T., Page, A.L., Cole man, N.T., and Flach, K., 1971. boron adsorption characteristics of se- lected soils from Mexico and Hawaii. Soil Sci. Soc. Am. J. 35:546-550
Borchardt, G., 1989. Minerals in Soil Environment Soil Science Society at America Book series. 2. Edition
Choi, W.W., and Chen, K.Y., 1979. Evaluation of boron removal by adsorption on solids. Environ. Sci. Techno. 13:189-196.
Couch, E. L., and Grim, R. E. 1968. Boron fixation by illites. Clays clay miner. 16, 249-256.
Elrashidi, M. A., and O’connor G. A., 1982. Boron sorption and desorption in soils. Soil Sci. Soc. Am. J. 46:27-31.
Eraydin, E., ve Sözüdogru, S., 2001. Topraklarda bor adsorpsiyonu üzerine bazi anyonlarin etkileri. S. Ü. Ziraat Fak. Dergisi 15 (26): 106-115
Fleet, M. E. L., 1965. Preliminary investigations into the sorption of boron by clay mineral. Clay Miner. 6:3-16.
Freundlich H. 1930. Fine deratellungder Chemie der Kolloid und verwanfer gabiet Lepizig. Acad. Verl.-ges. 560 s.
Goldberg, S., and Glaubig, R. A., 1985. Boron adsorp- tion on aluminum and iron oxide minerals. Soil Sci. Soc. Am. J. 49: 1374-1379.
Goldberg, S., and Glaubig, R.A., 1986. Boron adsorp- tion and silicon release by the clay minerals kao- linite, montmorillonite and illite. Soil Sci. Soc. Am. J. 50:1442-1448.
Goldberg, S., Forster. H. S., Lesch, S. M., and Heick, E. C., 1996. Influence of anion competition an bo- ron adsorption by clays and soils. Soil Sci. 161. 99-103
Goldberg,S., Forster, H.S., 1991. Boron sorption on calcareous soils and reference calcites. Soil Sci. 152:304 – 310.
Griffin, R. A., and Burau, R.G., 1974. Kinetic and equilibrium studies of boron desorption from. Soil Sci. Soc. Am. Proc. 38:892-897.
Harder, H., 1961. Einbau von Bor in detritische Ton- minerale. Experimente zur Erklärung des Borge- haltes toniger Sedimente. Geochim. Cosmochim. Acta. 21:284-294
Hingston, F.J., 1964. Reactions between boron ad. Clays. Aust. J. Soil Res. 2:83-95.
Jackson, M. L., 1979. Soil Chemical Analysis. Ad- vanced Course. Department of Soil Science Un i- versity of Visconsin, Madison, Vis. 53706, 468- 509.
Jasmund, K., and Lindner, B., 1973. Experiments on the fixation of boron by clay minerals. Proc. Int. Clay Conf. 1972: 399-412
Keren, R., and Bingham, F.T., 1985. Boron in water, soil and plants. Adv. Soil Sci. 1: 229-276.
Keren, R., and Mezuman, U., 1981. Boron adsorption by clay minerals using a phenomenological equa- tion clays clay miner 29: 198-204
Keren, R., and Talpaz, H., 1984. Boron adsorption by montmorillonite as affected by particle size. Soil. Sci. Soc. Am. J. 48:555-559
Langmuir, I., 1918. The adsorption of gases on plane surfaces of glass. Mica and Platin, J. Am. Chem. Soc., 40, 1361-1402.
Lineweaver,H. and, Burk,D.,1934. J. Amer. Chem. Soc., 56, 658-666.
Mezuman, V., and Keren, R., 1981. Boron adsorption by soils using a phenomenological adsorption equation. Soil Sci. Soc. Am. J. 45:722-726
Porrenga, D. H., 1967. Influence of grinding and heat- ing of layer silicates on boron sorption. Geochim. Cosmochim. Acta 31, 309-312
Rhoades, J. D., Ingvalson and Hacher, J.T., 1970. Laboratory determination of leachable soil boron. Soil Sci. Soc. Am. Proc. 34: 871-875.
Saglam, M. T. , 1979. Toprak Kimyasi Uygulama Notlari. Atatürk Ünv. Yayinlari, Erzurum.
Sak, O., Sayin, M., 1989. Aktif kireç yolu ile kil Irili- gindeki kirecin tahmini. Doga Bilim Dergisi.
Scharrer, K., Kühn, H., and Lüttmer, J., 1956.Unter suchungen über die Bindung des Bors durch anor- ganische Bodenbestandteile. Z. Pflernahr. Düng. 73:40-48.
Sims, J. R. And Bingham, F.T., 1967. Retention of Boron by layer silicates, sesquioxides and soil m a- terials: I. Layer silicates. Soil Sci. Soc. Am. Proc. 31: 728-732
Singer, A., 1989. Minerals in Soil Environment Soil Science Society at America Book series. 2. Edition
Singh, M., 1971. Equilibrium adsorption of boron in soils and clays Geoderma 5:209-217.
Su, C., ve Suarez, D.L., 1997. Boron Sorption and Release by allophone. Soil Sci. Soc. Am. J. 61:69- 77
Tüzüner, A., 1990. Toprak ve Su Analiz Laboratuarla- ri El Kitabi. Tarim Orman ve Köy Isleri Bakanligi, Köy Hizmetleri Gen. Müd. Ankara.