Adsorption characteristics of Cu and Zn onto various size fractions of aggregates from red paddy soil

Our results showed that: Pseudo-second order model was more successful to fit the adsorption process in the kinetic experiments and the isothermal experiments data can be described well with the Freundlich model as a whole

Bin Huang; Zhongwu Li; Jinquan Huang; Liang Guo; Xiaodong Nie; Yan Wang; Yan Zhang; Guangming Zeng

2013

Scholarcy highlights

  • Soil aggregate is the basic structure unit of soils and the ability of various size fractions are different in the aspect of adsorbing and transferring heavy metals in the environment
  • Bulk soil from red paddy field was partitioned into four aggregate-size fractions and their adsorption characteristics for Cu and Zn were studied
  • Our results showed that: Pseudo-second order model was more successful to fit the adsorption process in the kinetic experiments and the isothermal experiments data can be described well with the Freundlich model as a whole
  • More specific adsorption sites in the <0.002 mm fraction lead to more desorption amount for this particle size of soil at low pH condition
  • After 60 days of incubation, Cu and Zn were observed to enrich in the clay-size aggregates with fractions more stable than other particles

Need more features? Save interactive summary cards to your Scholarcy Library.