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本文对重金属离子与方解石表面反应作了系统研究。方解石表面对重金属离子的吸附等温线可分为４ 种类型：Ａ 型，Ｌａｎｇｍｕｉｒ 型；Ｂ 型，Ｆｒｅｕｄｌｉｃｈ 型；Ｃ 型，吸附－ 沉淀突变型；Ｄ型，吸着线性型。实验研究表明，方解石表面反应多种模式并存。Ｃｕ２ ＋ 、Ｚｎ２ ＋ 、Ｃｄ２ ＋ 和Ｎｉ２ ＋ 在低浓度时表现为离子交换吸附，较高浓度时表现为交换和表面配位吸附并存，而高浓度时则表现为表面沉淀；Ａｇ＋ 、Ｐｂ２ ＋ 和Ｃｒ３ ＋ 在低浓度时表现为表面配位吸附，而较高浓度时则表现为表面沉淀。
In this paper, we systematically studied the surface reactions of heavy metal ions and calcite. The adsorption isotherms of heavy metal ions on calcite surface can be divided into four types: A type, Langmuir type, B type, Freudlich type, C type, adsorption-precipitation mutant type, D type, sorption linear type. Experimental studies have shown that many modes of calcite surface reactions exist side by side. Cu2 +, Zn2 +, Cd2 + and Ni2 + showed ion-exchange adsorption at low concentration, exchange and surface coordination adsorption at higher concentration, and surface deposition at high concentration. Ag +, Pb2 + and Cr3 + exhibits surface coordination adsorption at low concentrations, whereas surface sedimentation appears at higher concentrations.