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1972年10月8日至10日于日本九州熊本大学,在日本矿业会的主持下召开各学、协会的秋季大会、讨论地下资源的利用问题。根据学术内容,一共分二十个分科,其中《细菌浸出》分科中,发表了黑矿细菌浸出研究委员会报告,就地浸出,从浸出液或矿水回收铜的研究,铜矿细菌浸出试验,土畑矿山的浸出试验,小坂元山矿石利用细菌浸出的萃取铜试验,细菌浸出的就地应用及其问题,黑矿的细菌浸出研究,铁细菌的培养及其生理,人形(山卡)矿山铀矿石的细菌浸出研究,
From October 8 to October 10, 1972, at the Kumamoto University in Kyushu, Japan, a fall conference of various schools and associations was held under the auspices of Japan Mining Association to discuss the utilization of underground resources. According to the academic content, a total of 20 sub-branches, of which “bacterial leaching” sub-division, published a report on the black mine bacterial leaching Research Committee, in-situ leaching, recovery of copper from leachate or mineral water, copper bacteria leaching test, soil浸 mine leaching test, Osaka Osaka Wanshan use of bacterial extraction of copper extraction test, the local application of bacterial leaching and its problems, the study of bacterial leaching of black ore, iron bacteria culture and its physiology, human form (Shanka) mine uranium Bacteria leaching of ore research,