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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Biotechnological potential of naturally occurring and laboratory-grown Microcystis in biosorption of Ni2+ and Cd2+.
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Biotechnological potential of naturally occurring and laboratory-grown Microcystis in biosorption of Ni2+ and Cd2+.

机译：天然存在的和实验室生长的微囊藻在Ni2 +和Cd2 +的生物吸附中的生物技术潜力。

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摘要

In this article information is provided on the biosorption of Cd2+ and Ni2+ by capsulated nuisance cyanobacterium Microcystis both from field and laboratory. Compared to laboratory, the naturally occurring cells had higher efficiency both for Ni2+ (14%) and Cd2+ (9%) biosorption. Freundlich and Langmuir constants revealed that Microcystis is not only an excellent biosorbent for metal removal but it has greater affinity for Cd2+ than Ni2+. Freundlich isotherm explained the biosorption mechanism moreexplicitly than Langmuir isotherm, both for single metal and for the bimetallic combination. Freundlich mathematical model further revealed that the biosorption would follow different courses at low and high concentrations. The failure of Freundlich andsuitability of BET isotherms at high metal concentration demonstrated a multilayer binding of metals by Microcystis.
机译：本文提供了有关野外和实验室中包囊的有害蓝藻微囊藻对Cd2 +和Ni2 +的生物吸附的信息。与实验室相比，天然存在的细胞对Ni2 +（14％）和Cd2 +（9％）的生物吸附效率更高。 Freundlich和Langmuir常数表明，微囊藻不仅是一种出色的金属去除生物吸附剂，而且与Ni2 +相比对Cd2 +具有更大的亲和力。对于单金属和双金属组合，弗氏树脂等温线比朗缪尔等温线更清楚地解释了生物吸附机理。 Freundlich数学模型进一步揭示了在低浓度和高浓度下生物吸附将遵循不同的过程。 Freundlich的失败和BET等温线在高金属浓度下的适用性证明了微囊藻对金属的多层结合。

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