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This study was conducted to assess the removal efficiency of pesticide
(Carbaryl) used in Souss Massa region (Agadir city), on a clay originated from
barrage situated in Agadir. The adsorption of Carbaryl from aqueous solution by
local clay as a low-cost, natural and eco-friendly adsorbent was investigated.
Different physicochemical parameters were analyzed: adsorbent mass, ionic
strength (NaNO3), initial concentration of pollutant, temperature,
and pH. The empirical results
showed that all these parameters have an impact on the retention of pesticide
on the clay. The equilibrium uptake was increased with an increase in the
initial pesticide concentration in solution. The results of adsorption were
fitted to the Langmuir and Freundlich isotherms. The Freundlich model
represented the adsorption process better than Langmuir model, with correlation
coefficients (R2) values ranged from 0.97 to 0.99. This study has
shown that the natural clay is a solid that has got an important adsorption
capacity, which may be used in treatment and depollution of water.
OBJECTIVES: To evaluate outcome and risk factors, particularly the (APATCHE II) score in elderly patients after admission to a geriatrics intensive care unit (ICU). Methods: A cross sectional study of patients ≥ 60 years admitted to the intensive care unit (ICU) of the Geriatrics department at Ain Shams University Hospital over 2 years period. We recorded age, sex, previous medical history, primary diagnosis, date of admission and discharge or death and APACHE II score on admission. Results: 202 patients admitted to the ICU were studied. The mean ICU mortality rates for these patients were (32, 5%), the mean APATCHE II score was (19.07). 27.3% of patients who died had hypokalemia and 43.2% had hyponatremia. Conclusion: ICU mortality rate are higher in elderly patients particularly with long ICU stay and hyponatremia.