Schippers A, Jozsa P G, Kovacs Z M, Jelea M, Sand W
Universität Hamburg, Institut für Allgemeine Botanik, Abteilung Mikrobiologie, Ohnhorststrasse 18, 22609 Hamburg, Germany.
Waste Manag. 2001;21(2):139-46. doi: 10.1016/s0956-053x(00)00068-4.
In the framework of a German-Romanian scientific cooperation, experiments were performed to evaluate feasible and cheap techniques for the safe storage of mine waste to prevent acid rock drainage (ARD). A large four-chamber percolator (4CP) was installed in a waste heap at Ilba Mine, Romania, to test the effect of biocides and alkaline layers on the bacteria causing acid rock drainage (ARD). The 4CP consisted of four chambers each containing 65 m3 of sulfidic waste material. The 4CP enabled the transfer of laboratory results to a technical scale. The detergent sodiumdodecylsulfate (SDS) was proved to be active against the leaching bacteria. Organotrophic micro-organisms were not effected by the SDS application. The alkaline layers caused an increase of pH, however, a decrease of cell numbers was measured only in adjacent ore layers, but not in the whole ore body. A rapid evaluation of the effects of these countermeasures on ARD formation became possible by microcalorimetric activity measurements for bioleaching.
在德-罗科学合作框架内，开展了实验以评估安全储存矿山废弃物以防止酸性岩排水（ARD）的可行且廉价技术。在罗马尼亚伊尔巴矿的一个废石堆中安装了一个大型四室渗滤器（4CP），以测试杀菌剂和碱性层对导致酸性岩排水（ARD）的细菌的影响。4CP由四个腔室组成，每个腔室包含65立方米的硫化废弃物。4CP能够将实验室结果转化为技术规模。已证明洗涤剂十二烷基硫酸钠（SDS）对浸出细菌具有活性。有机营养微生物不受SDS应用的影响。碱性层导致pH值升高，然而，仅在相邻矿层中测量到细胞数量减少，而不是在整个矿体中。通过生物浸出的微量热活性测量，可以快速评估这些对策对ARD形成的影响。
