Simultaneous removal of Cd, NO-N and hardness by the bacterium Acinetobacter sp. CN86 in aerobic conditions.

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2019
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Abstract
This study investigated the factors influencing the simultaneous removal of Cd, NO-N and hardness from water by the bacterial strain CN86. Optimum conditions were determined experimentally by varying the type of organic matter used, initial Cd concentration, and pH. Under the optimum conditions, the maximum removal ratios of Cd, NO-N and hardness were 100.00, 89.85 and 71.63%, respectively. The mechanism of Cd removal is a combination of co-precipitation with calcium carbonate and pH. Further confirmation that Cd can be removed by strain CN86 was provided by XRD and XPS analyses. Meteorological chromatography analysis showed that N was produced as an end product. These results demonstrate that the bacterial strain CN86 is a suitable candidate for simultaneously removing Cd, NO-N, and hardness during in wastewater treatment.
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Authors Su, Jun Feng;Gao, Yi Chou;Huang, Ting Lin;Bai, Xue Chen;Lu, Jin Suo;He, Lei;
Journal Bioprocess and biosystems engineering
Year 2019
DOI
10.1007/s00449-019-02132-7
URL
Keywords
aerobic denitrification ph hardness micp cd2+ removal mechanism

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