%0 Journal Article
%T Adsorption Characteristic and Form Distribution of Silicate in Lakes Sediments<br>硅在湖泊沉积物上的吸附特征及形态分布研究
%A LV Chang-wei
%A CUI Meng
%A GAO Ji-mei
%A ZHANG Xi-yan
%A WAN Li-li
%A HE Jiang
%A MENG Ting-ting
%A BAI Fan
%A YANG Xu
%A <br>吕昌伟
%A 崔萌
%A 高际玫
%A 张细燕
%A 万丽丽
%A 何江
%A 孟婷婷
%A 白帆
%A 杨旭
%J 环境科学
%D 2012
%I 
%X Taking surface sediments from the Wuliangsuhai Lake and Daihai Lake as adsorbent, the isothermal adsorption experiments of silicate on sediments were carried out and the adsorption behavior was explained by Langmuir, Freundlich and Temkin crossover-type equations, then the form distribution characters of silicate were studied after adsorption in this work. The results showed that the adsorption behavior of silicate on the two lakes sediments can be linear fitting in the lower concentration dose (< or = 3.00 mg x L(-1)); the sediments from the Wuliangsuhai Lake behaved adsorbing silicate while the sediments from the Daihai Lake behaved releasing silicate under the experimental dose; all of the Langmuir, Freundlich and Temkin crossover-type equations can be used to explain the adsorption behavior of silicate on the two lakes sediments, and the native adsorption silicate (NAS) and equilibrium silicate concentration (ESC(0)) calculated by the three equations could be used to explain the sink and source effects of the sediments from the two lakes; the silicate form distribution in the sediments after adsorption indicated that silicate adsorbed on particles were mainly added on the form of IEF-Si, CF-Si, IMOF-Si and OSF-Si, and the IMOF-Si and OSF-Si had important potential bioavailability.
%K adsorption behavior
%K form distribution
%K silicate
%K sediment
%K lakes<br>吸附特征
%K 形态分布
%K 硅
%K 沉积物
%K 湖泊
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3ff3aba7486768130c3ff830376f43b398e0c97f0ff2dd53&cid=a7ca601309f5fed03c078bce383971dc&jid=64cd0aa99dd39f69401c615b85f123ef&aid=4189763b19b8ad4558a56bc5e349ea43&yid=99e9153a83d4cb11&vid=27746bceee58e9dc&iid=ca4fd0336c81a37a&sid=5e25104e99903e8a&eid=a8de7703cc9e390f&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=35