休廃止鉱山の坑内に生息する微生物類
とくに鉄, 硫黄酸化細菌および硫酸還元細菌について
1983 年 99 巻 1140 号 p. 105-109
詳細
1983 年 99 巻 1140 号 p. 105-109
Brown and black-hair like or paste like-strange substances can be seen in the drainage and pools of underground workings.
The researches about these substances in the underground of three ceased mines were carried out by following methods.
Observation of underground state
Chemical analysis
Cultivation of bacteria
Electron probe micro-analyzer
The results are as follows,
1. Brown substance contains
(1) aerobic iron bacteria and aerobic sulphur bacteria.
(2) metalic-oxide, occasionally it contains up to 42% of iron.
2. Black substance contains
(1) anaerobic sulfate reducing bacteria mainly and aerobic iron bacteria and aerobic sulphur bacteria also.
(2) metalic-sulfide, occasionally it contains up to 15% of copper.
Through our researchs, it becomes possible to make these strange substances under artificially-made aerobic and anaerobic circumstances.
And by using these artificially-made strange objects, it is possible to improve the extraction technique of heavey metals in the mine drainage. This leads to the improvements of mine-pollution preventing technique, the reduction of its cost and the posibility of recovering the valuable metals from the drainage.
