Nickel Adsorption Characteristics of Selected Soils as Related to Some Soil Properties

Abstract

There is little information on Nickel (Ni) adsorption by calcareous soils of Iran. The pattern of Ni retention and its relationships with soil properties in soils from the southern part of Iran (SSI) and northern part of Iran (SNI) was studied. Amount of Ni adsorption was calculated after the equilibration of 1 g soil samples in duplicate with 25 mL of 0.01 M CaCl 2 solution containing 10 to 1000 mg Ni L −1 . Freundlich, Langmuir, Temkin, Dubinin-Radushkevich, and Redlich-Peterson isotherms were fitted to Ni adsorption data. The fits to Langmuir, Freundlich, and Redlich-Peterson adsorption models were closer than other isotherms. The intercept of Freundlich equation (A F ) and maximum buffering capacity of Langmuir (b L X m ) was significantly correlated with clay in SSI whereas in SNI it was related to pH and organic matter (OM). Adsorption maxima (X m ) of Langmuir isotherm was correlated with cation exchange capacity (CEC) in both groups of soils. Variation of Redlich-Peterson constants (a R P and k R P ) in SSI was due to combined effects of CEC, acid oxalate extractable Fe (Fe o ) and OM while they did not show significant relationship with soil properties in SNI. It appeared that clay, CEC, OM and pH are the main factors regulating Ni retention in the soils studied while calcium carbonate equivalent does not significantly affect Ni retention.

Adsorption of nickel by Indian soils

“…Also, significant negative correlations were obtained between 'a' and pH, CEC of the soils. The current findings are in agreement with earlier studies of Gomes et al (2001) and Adhami et al (2008), who have reported that pH and CEC of soils played major role and were positively correlated with Ni adsorption of soils. According to Adhami et al (2008), adsorption maxima of Langmuir adsorption isotherm of Ni was correlated with CEC of different soils; further, pH, CEC, clay and organic matter contents were the main factors which regulate the retention of Ni in soils.…”

“…The current findings are in agreement with earlier studies of Gomes et al (2001) and Adhami et al (2008), who have reported that pH and CEC of soils played major role and were positively correlated with Ni adsorption of soils. According to Adhami et al (2008), adsorption maxima of Langmuir adsorption isotherm of Ni was correlated with CEC of different soils; further, pH, CEC, clay and organic matter contents were the main factors which regulate the retention of Ni in soils. Shi et al (2012) have reported that Ni adsorption on soil organic matter (SOM) was dominant in the short term and the slow transfer of adsorbed Ni to Ni-layered double hydroxide (Ni-LDH) phases with longer reaction times.…”

Relationship between soil properties and potentially toxic element content based on the dataset of the Soil Information and Monitoring System in Hungary

“…Csorba et al silicate minerals (Shuman 1975;Ford and Sparks 2000;Voegelin et al 2002;Bradl 2004).The effect of soil pH on the pseudo total PTE content was weak (Zn, Co and Cr) or non-detectable (Cu) in this study. Similarly, the clay, CEC, OM, pH and CaCO 3 contents were the main factors regulating Ni retention in the studied soils (Mellis et al 2004;Adhami et al 2008;Ramachandran and D'Souza 2013). Our study shows that in the case of nickel this relationship is twice stronger with PC1 than with PC2.…”

Short-Term Changes of Metal Availability in Soil. Part I: Comparing Sludge-Amended With Metal-Spiked Soils

“…The extractability of metals in soil is dependent on their adsorption, which is influenced by several physical and chemical properties of the soil matrix. The adsorption of Cu, Ni, and Zn is influenced by soil pH, CEC, CaCO 3 , iron (Fe) and manganese (Mn) oxides, clay, and OM content (Adhami et al 2008;Bibak 1994;Mellis et al 2004;Kabata-Pendias and Pendias 2001;Polo et al 1999). The adsorption of Cr(III) to soil particles is dependent on the solubility of Cr organic complexes that exist in the soil (Puzon et al 2008).…”