Anorthite dissolution promoted by bacterial adhesion: Direct evidence from dialytic experiment
Anorthite dissolution promoted by bacterial adhesion: Direct evidence from dialytic experiment
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细菌粘附促进钙长石溶解：透析实验的直接证据
DOI：
10.1007/s11430-010-4068-y
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发表时间：
2011-01
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中科院分区：
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Bacterial adhesion is crucial to the dissolution of minerals and rocks. By employing dialysis method, we designed comparative experiments to investigate the dissolution behavior of anorthite with the mediation of both adhered and non-adheredPaenibacillus polymyxa. The results show that during 10 experimental days, the dissolution of anorthite was promoted considerably byP. polymyxaand metabolites. Nanoscale precipitates were formed in contact experiment. Anorthite has a higher release of Ca and lower releases of Al and Si in dialysis experiment than in contact experiment. The difference implies that the release of Ca is controlled by mechanism of proton-exchange, whereas those of Al and Si are controlled by ligand-complexation in which Al-O-Si bonds are destroyed first. Kinetically the release of Ca is controlled mainly by surface reaction and leached-layer diffusion. Both of them are restrained by adhered bacteria. The releases of Al and Si are controlled mainly by surface reaction, which is accelerated by adhered bacteria.
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影响因子：
--
作者：
周新民;徐夕生;董传万;李惠民
通讯作者：
周新民;徐夕生;董传万;李惠民
影响因子：
5
作者：
C. Amrhein;D. Suarez
通讯作者：
C. Amrhein;D. Suarez
DOI：
--
发表时间：
2007
期刊：
Geological Journal of China Universities
影响因子：
--
作者：
Luan Jian-jun
通讯作者：
Luan Jian-jun
影响因子：
5
作者：
B. Lian;Bin Wang;Mu Pan;Congqiang Liu;H. Teng
通讯作者：
B. Lian;Bin Wang;Mu Pan;Congqiang Liu;H. Teng
影响因子：
5
作者：
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通讯作者：
E. Wieland;B. Wehrli;W. Stumm