Effect of pretreatment on the bioadsorption of heavy metals on Mucor rouxii.
Effect of pretreatment on the bioadsorption of heavy metals on Mucor rouxii.
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DOI：
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发表时间：
2000
期刊：
影响因子：
1.5
通讯作者：
G. Yan;T. Viraraghavan
中科院分区：
文献类型：
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作者：
G. Yan;T. Viraraghavan
研究了不同化学物质预处理对鲁氏毛霉生物质吸附Pb2+、Cd2+、Ni2+、Zn2+的影响。用洗涤剂和碱性化学品如NaOH、Na2CO3和NaHCO3预处理，可以提高或保持微生物对活性炭的吸附能力。rouxii生物质。用HCl、H2SO4和C2H4O2进行酸预处理后，生物吸附量显著降低. CaCl2和NaCl预处理使吸附量略有降低。与高压灭菌的生物质相比，所有预处理方法都导致生物质减少。此外，M.用化学品预处理而不进行高压灭菌的Rouxii生物质即使在煮沸后仍然是有活力的。碱预处理是提高生物体对金属离子吸附能力的有效方法，但在评价生物体吸附性能时应考虑生物体预处理后的损失。
Different chemicals were used to study the effect of pretreatment of Mucor rouxii biomass on bioadsorption of Pb 2+ , Cd 2+ , Ni 2+ and Zn 2+ . Pretreatment with detergent and alkali chemicals such as NaOH, Na 2 CO 3 and NaHCO 3 were found to improve or maintain the bioadsorption capacity in comparison with live M. rouxii biomass. Acid pretreatment using HCl, H 2 SO 4 and C 2 H 4 O 2 resulted in a significant reduction in the bioadsorption capacity. Pretreatment using CaCl 2 and NaCI slightly reduced the bioadsorption capacity. All the pretreatment methods resulted in a reduction in biomass in comparison with autoclaved biomass. In addition, M. rouxii biomass,pretreated with chemicals without autoclaving was still viable even after boiling. To improve the bioadsorption capacity for metal ions by dead biomass, alkali pretreatment is an effective method, but the loss of biomass after the pretreatment should be taken into consideration while assessing the bioadsorption performance.