THE “ION EXCHANGE-PRECIPITATION” ISOTHERM OF HEAVY METAL PARTITIONING BETWEEN LIQUID AND SOLID IN SEAWATER——DE BOER-ZWIKKER EQUATION TREATMENT

ZHANG ZHENGBIN(C. P. CHANG); CAI WEIJUN

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Article Navigation > Acta Oceanologica Sinica > 1987 > (2): 205-214

ZHANG ZHENGBIN(C. P. CHANG), CAI WEIJUN. THE “ION EXCHANGE-PRECIPITATION” ISOTHERM OF HEAVY METAL PARTITIONING BETWEEN LIQUID AND SOLID IN SEAWATER——DE BOER-ZWIKKER EQUATION TREATMENT[J]. Acta Oceanologica Sinica, 1987, (2): 205-214.

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THE “ION EXCHANGE-PRECIPITATION” ISOTHERM OF HEAVY METAL PARTITIONING BETWEEN LIQUID AND SOLID IN SEAWATER——DE BOER-ZWIKKER EQUATION TREATMENT

ZHANG ZHENGBIN(C. P. CHANG)¹,
CAI WEIJUN²

1.
Department of Marine Chemistry, Shandong College of Oceanography, Qingdao
2.
Department of Chemistry, East China Normal University, Shanghai

Received Date: 1986-02-22
Rev Recd Date: 1986-10-12

Abstract

Abstract

Determinded in this paper are 18 isotherms of Cu²⁺ and Pb²⁺ partitioning between liquid and solid (kaolinite, illite and montmorillonite), all proved to be "ion exchange-precipitation" isotherms. This is a new type of isotherms in marine chemistry. We have used the modified BET and Tóth equations to describe them. In this paper, we proposed the third expression, i. e. de Boer-Zwikker equation. Theoretically, this method has a proper chemical model. Practically, it is simple and easy to compare with experimental data.