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HELMHOLTZ THEORY [3 records]
Record 1 - internal organization data 2012-06-20
Record 1, English
Record 1, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Water Treatment (Water Supply)
Record 1, Main entry term, English
- Stern theory
1, record 1, English, Stern%20theory
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In raw water, colloids invariably carry a negative charge... In order to neutralize this negative surface charge, positive ions, which are present in the raw water or are introduced into it, come together to form a layer around the colloid. Various theories have been put forward : the Helmholtz theory[, ] the Gouy-Chapman theory[, and] the Stern theory [that] brings together the two preceding theories and introduces the idea of a double layer. 1, record 1, English, - Stern%20theory
Record 1, French
Record 1, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Traitement des eaux
Record 1, Main entry term, French
- théorie de Stern
1, record 1, French, th%C3%A9orie%20de%20Stern
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les colloïdes présents dans l'eau brute sont très généralement chargés négativement [...] Afin de neutraliser cette charge négative de surface, des ions positifs, présents dans l'eau brute ou ajoutés, viennent former une couche autour du colloïde. Diverses théories ont été avancées : [la] théorie de Helmholtz[, la] théorie Gouy-Chapman [et la] théorie de Stern qui rassemble les deux précédentes et considère la formation d'une double couche. 1, record 1, French, - th%C3%A9orie%20de%20Stern
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2012-06-20
Record 2, English
Record 2, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Water Treatment (Water Supply)
Record 2, Main entry term, English
- Gouy-Chapman theory
1, record 2, English, Gouy%2DChapman%20theory
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
In raw water, colloids invariably carry a negative charge... In order to neutralize this negative surface charge, positive ions, which are present in the raw water or are introduced into it, come together to form a layer around the colloid. Various theories have been put forward : the Helmholtz theory... the Gouy-Chapman theory : the layer of positive ions is spaced unevenly around the colloid; neutrality is obtained at a greater distance(diffuse layer)... 1, record 2, English, - Gouy%2DChapman%20theory
Record 2, French
Record 2, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Traitement des eaux
Record 2, Main entry term, French
- théorie de Gouy-Chapman
1, record 2, French, th%C3%A9orie%20de%20Gouy%2DChapman
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les colloïdes présents dans l'eau brute sont très généralement chargés négativement [...] Afin de neutraliser cette charge négative de surface, des ions positifs, présents dans l'eau brute ou ajoutés, viennent former une couche autour du colloïde. Diverses théories ont été avancées : [la] théorie de Helmholtz [et la] théorie Gouy-Chapman [selon laquelle] la couche d'ions positifs est inégalement répartie autour du colloïde; la neutralité est obtenue à plus grande distance (couche diffuse) [...] 1, record 2, French, - th%C3%A9orie%20de%20Gouy%2DChapman
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2012-02-28
Record 3, English
Record 3, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Water Treatment (Water Supply)
Record 3, Main entry term, English
- Helmholtz theory
1, record 3, English, Helmholtz%20theory
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
In raw water, colloids invariably carry a negative charge... In order to neutralize this negative surface charge, positive ions, which are present in the raw water or are introduced into it, come together to form a layer around the colloid. Various theories have been put forward : the Helmholtz theory [that] a layer of positive ions covers the entire surface of the colloid and ensures the neutrality of the entire mass(bound layer)... 1, record 3, English, - Helmholtz%20theory
Record 3, French
Record 3, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Traitement des eaux
Record 3, Main entry term, French
- théorie de Helmholtz
1, record 3, French, th%C3%A9orie%20de%20Helmholtz
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les colloïdes présents dans l'eau brute sont très généralement chargés négativement [...] Afin de neutraliser cette charge négative de surface, des ions positifs, présents dans l'eau brute ou ajoutés, viennent former une couche autour du colloïde. Diverses théories ont été avancées : [la] théorie de Helmholtz [selon laquelle] une couche d'ions positifs recouvre intégralement la surface du colloïde et assure la neutralité de l'ensemble (couche adhérée) [...] 1, record 3, French, - th%C3%A9orie%20de%20Helmholtz
Record 3, Spanish
Record 3, Textual support, Spanish
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