Inhibiting microbial leaching of metal sulphide(s) - by treatment with microbicide, used for inhibiting leaching of heavy metals or radioactive metals from waste tips in e.g. mining industry, etc.,申请号DE19914112933-传众专利搜索

发明名称	Inhibiting microbial leaching of metal sulphide(s) - by treatment with microbicide, used for inhibiting leaching of heavy metals or radioactive metals from waste tips in e.g. mining industry, etc.
摘要	Microbial leaching is inhibited by treating the material with a biocide or microbial growth inhibitor. The biocide is a substance toxic to Thiobacillus spp., esp. a paraffin sulphonate or an inorganic fluoride. In the latter case, a barrier layer of carbonates or hydroxides is used to prevent leaching of F ions. USE/ADVANTAGE - The process may be used to inhibit leaching of heavy metals or radioactive metals from waste tips in the mining, metallurgical or chemical industries. In an example, application of a technical fluorspar soln. (500mg/l F) to a mine spoil heap reduced the U leaching rate from 0.45 to 0 kg/day and the Fe leaching rate from 28 to 0 kg/day.
申请公布号	DE4112933(A1)	申请公布日期	1992.10.22
申请号	DE19914112933	申请日期	1991.04.17
申请人	INSTITUT FUER BIOTECHNOLOGIE LEIPZIG, O-7050 LEIPZIG, DE	发明人	GLOMBITZA, FRANZ, DR., O-7024 LEIPZIG, DE;OTTO, GERHARD, O-7010 LEIPZIG, DE;ONDRUSCHKA, JELKA, DR., O-7030 LEIPZIG, DE;BULLMANN, MAUD, O-7060 LEIPZIG, DE;DITTRICH, BARBARA, DR., O-7024 LEIPZIG, DE;HAEHNE, ROLAND, DR., O-9400 AUE, DE;SAENGER, HARTMUT, O-9621 LANGENREINSDORF, DE
分类号	A01N41/04;A01N59/10;B09C1/10	主分类号	A01N41/04
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