Ben Omar N, Larbi Merroun M, Arias Peñalver J M, González Muñoz M T
Departamento de Microbiología, Facultad de Ciencias, Universidad de Granada, Spain.
Chemosphere. 1997 Nov;35(10):2277-83. doi: 10.1016/s0045-6535(97)00306-8.
The biosorption for La2+, Co2+, Mn2+, UO2(2+), Pb2+, Ag+, Zn2+, Cd2+ and Cr2+ by wet and dry biomass form Myxococcus xanthus obtained from laboratory cultures and Saccharomyces cerevisiae from the brewing industry has been studied. M. xanthus biomass was found to be the most efficient biosorbent for all of the metals assayed. However, due to the fact that S. cerevisiae is a low cost residual by-product from the brewing industry, and at the same time yields good levels of biosorption, it is considered in this work to be of great interest for use as a detoxifier of heavy metals contaminated waters. In addition, the use of sodium carbonate as a desorbent agent is discussed where it was possible to recover up to 94,53% of UO2(2+) by both M. xanthus and S. cerevisiae biomass.
研究了从实验室培养物中获得的黄色粘球菌的湿生物质和干生物质以及酿酒工业中的酿酒酵母对La2+、Co2+、Mn2+、UO2(2+)、Pb2+、Ag+、Zn2+、Cd2+和Cr2+的生物吸附。发现黄色粘球菌生物质对所有测定的金属都是最有效的生物吸附剂。然而，由于酿酒酵母是酿酒工业的低成本残余副产品，同时具有良好的生物吸附水平，因此在本研究中认为它作为重金属污染水的解毒剂具有很大的应用价值。此外，还讨论了使用碳酸钠作为解吸剂的情况，通过黄色粘球菌和酿酒酵母生物质都可以回收高达94.53%的UO2(2+)。
