Macroporous resins containing iminodiacetic acid (IDA) groups (Lewatit TP 207 and Chelex-100)
were investigated as a function of concentration, temperature and pH for their sorption …

Factors determining in-hospital mortality and long-term survival of patients hospitalised with
acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are not precisely …

The adsorption of Cd 2+ and Pb 2+ on sugar beet pulp (SBP), a low-cost material, has been
studied. In the present work, the abilities of native (SBP) to remove cadmium (Cd 2+ ) and …

There is incessant demand for ‘proof’ of return on investment (ROI) for social media spending,
and a significant degree of uncertainty among marketers with respect to allocating effort …

Walnut shell (WNS) (Juglans regia) has been utilised as an adsorbent for the removal of Cr(VI)
ions from aqueous solutions after treatment with citric acid. The modification reaction …

… q to the equilibrium adsorbate concentration in the bulk fluid phase C e . The Langmuir
isotherm is given as:(4) C e q = 1 ( A s b ) + C e A s where A s and b are Langmuir constants …

… The equation for the Freundlich isotherm is (1) X / m = K f C e 1 / n , where X / m is the
amount of adsorbate adsorbed per unit weight of resin, C e is the equilibrium concentration of …

… The Langmuir isotherm is represented by the following equation:(1) C e q e = C e Q 0 + 1 Q
0 b where C e is the equilibrium concentration (mg/L), q e the amount of adsorbed material at …

… These isotherms relate metal uptake per unit weight of resin q e to the equilibrium metal ion
concentration in the bulk fluid phase C e . Langmuir equation:(5) C e q e = 1 K b A S + C e A …

The sorption of Cr(VI) from aqueous solutions with macroporous resins which contain
quarternary amine groups (Lewatit MP 64 and Lewatit MP 500) was studied at varying Cr(VI) …