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In this study, we characterized strain F9 and evaluated the interaction between strain F9 and hematite by scanning electron microscopy (SEM), Fourier transform infrared spectrophotometry (FTIR), zeta potential, flotation, and other methods. The results showed that strain F9 belongs to Serratia marcescens. This brevibacterium had CH2, CH3, and hydroxyl groups on its cell wall, which imparted a strong...
The avermectin wastewater was treated with SBR technique. This paper was focused mainly on the removal rate of COD and change of ammonia nitrogen of influent and effluent. At the stable phase of SBR reactor operation, the removal rate of COD could be about 75% when the influent volume load was 1.01 kg/(m3 d), and the effluent COD was below 300 mg/L. Temperature had a great impact on the effect of...
A glycolate oxidase (GO) gene was obtained by reverse transcription-polymerase chain reaction (RT-PCR) from the spinach leaves, and the recombinant E. coli BL21(DE3)/pET-GO was constructed. To know whether bacterial hemoglobin can be used as an oxygen donor to oxygen-dependent GO, Vitreoscilla hemoglobin (VHb) gene was fused with GO gene by overlap-PCR and the fusion protein VGO was expressed in E...
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