各种氰化物降解菌在水中游离氰化物生物降解中的性能。
Performance of various cyanide degrading bacteria on the biodegradation of free cyanide in water.
机构信息
UNESCO UNISA Africa Chair in Nanoscience's/Nanotechnology Laboratories (U2AC2N), College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P.O. Box 392, Pretoria, South Africa; Nanosciences African network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, P.O. Box 722, Somerset West, Western Cape Province, Cape Town, South Africa.
University of Western Cape, Environmental and Nano Sciences, Department of Chemistry, Faculty of Natural Sciences, Bellville, Private mail Bag X17, Cape Town, 7535, South Africa.
出版信息
J Hazard Mater. 2019 Dec 15;380:120900. doi: 10.1016/j.jhazmat.2019.120900. Epub 2019 Jul 15.
This study reports on the biodegradation of free cyanide (FCN) by cyanide degrading bacteria (CDB) that were isolated from mining wastewater and thiocyanate containing wastewater. The performance of these isolates was compared to cryopreserved CDBs that were used in previous studies. The performance of the isolates to degrade FCN was studied in batch cultures. It was observed that the CDB from the thiocyanate wastewater showed higher biodegradation rates (2.114 g CN. L.O.D.h) compared to the isolates from the mining wastewater. The isolates from the cryopreserved CDBs and from the mining wastewater achieved a biodegradation rate of 1.285 g CN L.O.D.h and 1.209 g CN.L.O.D.h, respectively. This study demonstrated that the source of the organisms plays a significant role on FCN biodegradation.
本研究报告了从采矿废水和含硫氰酸盐废水中分离出的氰化物降解菌（CDB）对游离氰化物（FCN）的生物降解情况。将这些分离物的性能与之前研究中使用的冷冻保存的 CDB 进行了比较。在批处理培养中研究了分离物降解 FCN 的性能。结果表明，来自硫氰酸盐废水的 CDB 表现出更高的生物降解率（2.114 g CN.L.O.D.h），而来自采矿废水的分离物则较低。来自冷冻保存的 CDB 和采矿废水的分离物的生物降解率分别为 1.285 g CN.L.O.D.h 和 1.209 g CN.L.O.D.h。本研究表明，生物来源对 FCN 的生物降解起着重要作用。
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