CAJ | 학술논문

为了研究痕量金属铅在黄河水体中迁移转化规律以及黄河悬浮粒子承载铅的能力，进行了黄河水中铅(Ⅱ)与悬浮粒子相互作用的实验。结果表明：①铅以一价正离子形式与悬浮粒子进行阳离子交换，交换的pH范围在3～7，当pH为6时，离子交换率达到最大值；②铅离子浓度增加，离子交换率降低；③交换剂为转化沙时的离子交换率比未转化沙大；④可溶态痕量金属铅在黄河水中除了与悬浮粒子表面吸着交换进入固相外，也可以沉淀形式进入固相。
위료연구흔량금속연재황하수체중천이전화규률이급황하현부입자승재연적능력，진행료황하수중연(Ⅱ)여현부입자상호작용적실험。결과표명：①연이일개정리자형식여현부입자진행양리자교환，교환적pH범위재3～7，당pH위6시，리자교환솔체도최대치；②연리자농도증가，리자교환솔강저；③교환제위전화사시적리자교환솔비미전화사대；④가용태흔량금속연재황하수중제료여현부입자표면흡착교환진입고상외，야가이침정형식진입고상。
In order to investigate the transfer and transform rules and thelead carrying capacity of suspended particles,experiments on interactions between suspended particles and Pb(Ⅱ) in the Yellow River were conducted.The results showed that:①The cation exchange of Pb with suspended particles is in the form of PbOH+,with pH value range of 3～7.The exchange ratio of Pb2+ is nearly at its greatest value as pH=6.②The ion exchange ratio decreases as the concentration of Pb2+ rises.③The ion exchange ratio of lead is bigger when the exchange reagent is the transformed sand than it is the nontransformed sand.④The dissoluble lead of trace metal can be precipitated into solid phase except that they are adsorbed and exchanged into solid phase at the boundary surface of their suspended particles.