PHYSICO-CHEMICAL PROCESSES OF SILICATES IN THE ESTUARIAL REGION——Ⅱ. Laboratory Model Studies on the Mechanism of the Silicate Removal in the Estuarial Region-The Adsorption of Reactive Silicate in Sea Water on Colloidal Fe(OH)<sub>3</sub> and Al(OH)<sub>3</sub> Preci

Zhuang Dongfa; Chen Zexia; Xu Muzhe; Wu Yuduan; Li Faxi

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Zhuang Dongfa, Chen Zexia, Xu Muzhe, Wu Yuduan, Li Faxi. PHYSICO-CHEMICAL PROCESSES OF SILICATES IN THE ESTUARIAL REGION——Ⅱ. Laboratory Model Studies on the Mechanism of the Silicate Removal in the Estuarial Region-The Adsorption of Reactive Silicate in Sea Water on Colloidal Fe(OH)3 and Al(OH)3 Preci[J]. Haiyang Xuebao, 1979, 1(1): 65-76.

Citation:

Zhuang Dongfa, Chen Zexia, Xu Muzhe, Wu Yuduan, Li Faxi. PHYSICO-CHEMICAL PROCESSES OF SILICATES IN THE ESTUARIAL REGION——Ⅱ. Laboratory Model Studies on the Mechanism of the Silicate Removal in the Estuarial Region-The Adsorption of Reactive Silicate in Sea Water on Colloidal Fe(OH)₃ and Al(OH)₃ Preci[J]. Haiyang Xuebao, 1979, 1(1): 65-76.

Citation:

Zhuang Dongfa, Chen Zexia, Xu Muzhe, Wu Yuduan, Li Faxi. PHYSICO-CHEMICAL PROCESSES OF SILICATES IN THE ESTUARIAL REGION——Ⅱ. Laboratory Model Studies on the Mechanism of the Silicate Removal in the Estuarial Region-The Adsorption of Reactive Silicate in Sea Water on Colloidal Fe(OH)₃ and Al(OH)₃ Preci[J]. Haiyang Xuebao, 1979, 1(1): 65-76.

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PHYSICO-CHEMICAL PROCESSES OF SILICATES IN THE ESTUARIAL REGION——Ⅱ. Laboratory Model Studies on the Mechanism of the Silicate Removal in the Estuarial Region-The Adsorption of Reactive Silicate in Sea Water on Colloidal Fe(OH)₃ and Al(OH)₃ Preci

1.
The Third Institute of Oceanography, National Bureau of Oceanography
2.
Department of Oceanography, Amoy University

Received Date: 1979-02-05

Abstract

Abstract

The adsorption of reactive silicate in sea water on colloidal Fe(OH)₃ and Al(OH)₃ precipitates has been studied quantitatively in the laboratory in order to find out the extent of the adsorption under conditions similar to those occur in natural environments,the type of adsorption process,and also the more acceptable mechanism of the silicate removal in the estuarial region.Adsorption isotherms under different Cl‰,pH,and composition of electrolytes have been obtained and isosteric heats of adsorption have been calculated.Desorption experiments have been done by washing the adsorption residues with NaCl,Na₂SO₄,MgCl₂ or NaOH solution.Some residues were re-dissolved by 0.02 N HC1 to determine the form of the adsorbed silicate.

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References(7)

References

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