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除臭微生物的篩

發(fā)布時間:2018-06-30 10:31

  本文選題:除臭微生物 + 氨氣。 參考:《環(huán)境科學(xué)與技術(shù)》2016年S2期


【摘要】:為了獲得除臭微生物,從垃圾填埋場土樣中篩選獲得了5株具有高效H_2S和NH_3去除率的菌株。通過16S rDNA和26S rDNA D1/D2區(qū)序列分析,共鑒定得到1株巴氏醋桿菌(Acetobacter pasteurianus)X8,1株玉米乳桿菌(Lactobacillus zeae)X12,1株副干酪乳桿菌(Lactobacillus paracasei)R5,1株發(fā)酵乳桿菌(Lactobacillus fermentum)R8以及1株釀酒酵母(Saccharomyces cerevisiae)J8。根據(jù)各單一菌株對NH_3和H_2S的去除率進行復(fù)配,X8+X12+J8+R5+R8組成的復(fù)配菌液除臭效果最佳,對NH_3和H_2S的去除率分別為92.68%和84.72%,顯著高于其它各組(P≤0.05)。通過單因素試驗確定該組合最佳除臭條件:除臭溫度38℃,除臭時間24 h,初始pH3.5,稀釋倍數(shù)80。將此復(fù)配制劑采用自動噴霧設(shè)備進行初步應(yīng)用,按最佳條件對某垃圾中轉(zhuǎn)站進行噴灑,能去除93.9%的硫化氫,94.4%氨氣,且臭氣濃度降低89.0%。
[Abstract]:In order to obtain deodorized microorganism, five strains with high H2S and NH3 removal efficiency were obtained from landfill soil samples. Based on the sequence analysis of 16s rDNA and 26s rDNA D 1 / D2 region, one strain of (Acetobacter pasteurianus) X8, one strain of Lactobacillus zeae, one strain of Lactobacillus paracasei, one strain of Lactobacillus fermentum R8 and one strain of Saccharomyces cerevisiae, J8 were identified. According to the removal rate of NH3 and H2S from each single strain, the best deodorization effect was obtained by adding the mixture of X8X12J8R5R8, the removal rates of NH3 and H2S were 92.68% and 84.72%, respectively, which were significantly higher than those of other groups (P 鈮,

本文編號:2085977

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