吉林大学学报(地球科学版) ›› 2020, Vol. 50 ›› Issue (1): 226-233.doi: 10.13278/j.cnki.jjuese.20180267
• 地质工程与环境工程 • 上一篇
杨悦锁1,2, 朱一丹1, 张文卿1, 武宇辉1, Yu Tong3, 张大志4
Yang Yuesuo1,2, Zhu Yidan1, Zhang Wenqing1, Wu Yuhui1, Yu Tong3, Zhang Dazhi4
摘要: 为了对地下水系统中天然胶体与Ni2+的共迁移特征进行研究,通过静态吸附实验和石英砂模拟含水层介质柱实验研究了土壤胶体对Ni2+在地下水中运移的影响,以及pH、离子强度(IS)、有机质等对土壤胶体吸附Ni2+的影响。结果表明:随着pH值升高,土壤胶体对Ni2+的吸附量增加;离子强度的增加会显著地降低土壤胶体吸附Ni2+的能力;腐殖酸(HA)的存在会增强胶体对Ni2+的吸附能力;在有胶体的情况下,Ni2+穿透砂柱的时间会缩短,吸附能力增强,吸附量增加,但当离子强度增加时,虽然Ni2+穿透砂柱的时间也被缩短,但是吸附量却降低。
中图分类号:
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