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Compare BDH, ethidium bromide (EB), sodium dodecyl sulfate(SDS)(151-21-3) on the elimination of dysentery bacillus resistant plasmid

Compare BDH, ethidium bromide (EB), sodium dodecyl sulfate(SDS)(151-21-3), different treatment time and manner on the elimination of dysentery bacillus resistant plasmid. The results showed that the elimination effect of BDH on the drug-resistant plasmid of Shigella dysenteriae was less. EB had a good elimination effect on the resistant plasmid of Shigella dysenteriae, and the elimination rate was up to 85% by continuous incubation. SDS was the best Resistant plasmid has a certain elimination effect, with high temperature and high concentration of double treatment of alternating culture, the elimination rate is up to 27%.
In order to explore the effective method to improve the kinetics of gas hydrate separation, the effects of sodium dodecyl sulfate (SDS)(151-21-3) and kaolin on the formation of gas hydrate and the separation of CH4 were studied. Experiments were carried out in four systems, namely SDS(151-21-3) solution with SDS content of 10.34% and kaolin mass fraction of 1.47%, 5.64% and 8.23% SDS-kaolin complex solution Gas hydrate formation process pressure - temperature - time (pTt) curve, and the concentration of CH4 in the isolated product was determined by gas chromatography. The results showed that SDS and SDS-kaolin complex system shortened the gas hydrate formation induction time and increased the gas hydrate formation rate. In the four systems, the formation time of gas hydrate formation is the shortest 72ms, the average formation rate is up to 5.261 × 10-6m3 · h-1, and the CH4 concentration in the first-order hydration separation product is 12.40%-20.61% higher than that of the feed gas. In SDS-kaolin complex solution, the gas hydrate fractal growth, CH4 purification concentration up to 58.41%. 



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