Abstract：
:Acinetobacter sp. SZ28 exhibited efficient autotrophic denitrification ability using Mn(2+) as an electron donor. Sequence amplification identified the presence of the nirS gene. Meteorological chromatography analysis showed that N2 was produced as an end product. Response surface methodology experiments showed that the maximum removal of nitrate occurred under the following conditions: Mn(2+) concentration of 143.56 mg/L, C/N ratio of 6.82, initial pH of 5.17, and temperature of 34.26 °C, where the initial Mn(2+) concentration produced the largest effect. In the groundwater experiment, nitrate levels decreased from 1.63 mg/L to 0 mg/L. Three-dimensional fluorescence analysis showed a decrease in the peak intensity of the original humus. Humus and the small-molecule amino acid tryptophan were detected. These results demonstrated that strain SZ28 is a suitable candidate for the simultaneous removal of nitrogen and Mn(2+) in groundwater treatment.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Su Jf,Zheng SC,Huang Tl,Ma F,Shao SC,Yang SF,Zhang Lndoi
10.1016/j.biortech.2015.06.020subject
Has Abstractpub_date
2015-09-01 00:00:00pages
654-9eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00806-8journal_volume
192pub_type
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