The kinetics of sorption of divalent metal ions onto sphagnum moss peat
Citations
3,458 citations
Cites background from "The kinetics of sorption of divalen..."
...Although there are many factors which influence the adsorption capacity, including the initial adsorbate concentration [12,48–51], the reaction temperature [10,12,50], the solution pH value [52,53], the adsorbent particle size [48] and dose [12,48,51], and the nature of the solute [12,54], a kinetic model is concerned only with the effect of observable parameters on the overall rate....
[...]
...The rate of the second-order eaction may be dependent on the amount of divalent metal ions n the surface of the peat, and the amount of divalent metal ons adsorbed at equilibrium [9,12]....
[...]
1,860 citations
1,584 citations
Cites background from "The kinetics of sorption of divalen..."
...The initial solute concentration seems to have impact on biosorption, with a higher concentration resulting in a high solute uptake (Ho and McKay, 1999b; Ho and McKay, 2000; Binupriya et al., 2007a)....
[...]
1,339 citations
Cites background from "The kinetics of sorption of divalen..."
...In addition, the adsorption follows the Langmuir equation ( Ho and McKay, 2000 )....
[...]
1,173 citations
Cites background from "The kinetics of sorption of divalen..."
...Although there are many factors which influence the sorption capacity, including the initial sorbate concentration (Ho et al., 2004; Ho and McKay, 2000, 2003), the reaction temperature (Ho et al., 2004; Ho and McKay, 2000), the solution pH value (Ho et al., 1994, 1995), the sorbent particle size…...
[...]
...Moreover, decreasing the tree fern dose enhanced the initial sorption rate, a result counter to that of the sorption of lead by peat (Ho and McKay, 2000)....
[...]
...…the pseudo-second-order rate based on the solid capacity has been presented for the kinetics of sorption of divalent metal ions onto peat (Ho, 1995; Ho and McKay, 2000): qt ¼ q2ekt 1þ qekt , (1) where k is the pseudo-second-order rate constant (g/mg min), qe is the amount of cadmium ion sorbed at…...
[...]
...…intercept2/slope h ¼ 1/slope qt vs. qt/t qe ¼ intercept k ¼ 1/(intercept slope) h ¼ intercept/slope qt/t vs. qt qe ¼ intercept/slope k ¼ slope2/intercept h ¼ intercept et al., 2002; Ho and McKay, 2000), a kinetic model is concerned only with the effect of observable parameters on the overall rate....
[...]
...…capacity, including the initial sorbate concentration (Ho et al., 2004; Ho and McKay, 2000, 2003), the reaction temperature (Ho et al., 2004; Ho and McKay, 2000), the solution pH value (Ho et al., 1994, 1995), the sorbent particle size (Ho and McKay, 2003) and dose (Ho and McKay, 2000,…...
[...]
References
4,868 citations
"The kinetics of sorption of divalen..." refers methods in this paper
...Traditionally, the kinetics have been described by the ®rst-order equation typical of that derived by Lagergren (1898)....
[...]
409 citations
369 citations
246 citations
"The kinetics of sorption of divalen..." refers methods in this paper
...However, Gosset et al. (1986), Sharma and Forster (1993) as well as Ho et al....
[...]
...However, Gosset et al. (1986), Sharma and Forster (1993) as well as Ho et al. (1995) have used a second-order equation to describe metal±peat sorption and Tien and Huang (1991) have presented a second-order expression for metal sorption onto sludge solids....
[...]
90 citations