当前位置: 首页 > 文章 > 碳酸钙对土壤固持重金属铅的影响 湖北农业科学 2015,54 (23) 5839-5842
Position: Home > Articles > Immobilization Effect of Calcium Carbonate on Heavy Metallic Lead in Soil Hubei Agricultural Sciences 2015,54 (23) 5839-5842

碳酸钙对土壤固持重金属铅的影响

作  者:
贺婧;罗玲玲;杨超
单  位:
宁夏大学资源环境学院
关键词:
碳酸钙;土壤;固持;重金属铅
摘  要:
以宁夏典型石灰性土壤为供试材料,通过吸附解吸试验,探寻石灰性土壤对重金属铅的固持能力。结果表明,灰钙土对重金属铅的平均吸附率为89.78%,风沙土对重金属铅的平均吸附率为80.29%,灰钙土对重金属铅的吸附能力较强。两种土壤中有机质对土壤吸附铅的贡献率(灰钙土为11.96%,风沙土为7.87%)均小于碳酸钙对土壤吸附铅的贡献率(灰钙土为17.21%,风沙土为11.96%),与有机质相比,碳酸钙对石灰性土壤吸附重金属铅的影响更大。
译  名:
Immobilization Effect of Calcium Carbonate on Heavy Metallic Lead in Soil
作  者:
HE Jing;LUO Ling-ling;YANG Chao;School of Resource and Environment,Ningxia University;
关键词:
calcium carbonate;;soil;;immobilization;;heavy metal lead
摘  要:
Using the typical calcareous soil in Ningxia as material,exploring the immobilization ability of it on heavy metallic lead was exploried through the adsorption-desorption experiment. The results showed that the average adsorption rate of sierozem on heavy metal lead was 89.78%, and aeolian sandy soil was 80.29%,which indicated that the adsorption capacity of former on heavy metallic lead was stronger than latter. The contribution rate of organic matter on adsorption of lead in two kinds of soil(sierozem was 8.31%, and aeolian sandy soil was 7.87%) were less than the contribution rate of calcium carbonate(sierozem was 17.21%, and sand soil was 11.96%).Compared with the organic matter, the effect of calcium carbonate on adsorption heavy metallic lead in calcareous soil was greater.

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