周辺環境下にある微生物による硫化水素の除去

フォーマット:
論文(AKAGI収録)
責任表示:
戸井, 啓夫 ; 中山, 浩平 ; 澁谷, 夏海 ; 林, 倶子
言語:
日本語
出版情報:
群馬工業高等専門学校, 2011-03-03
著者名:
ISSN:
02886936  CiNii Articles  Webcat Plus  IRDB
通号:
29
開始ページ:
19
終了ページ:
22
バージョン:
publisher
概要:
Several bacteria from the ambient surroundings were examined for biological removal of hydrogen sulifide. Dry pig feces was shown to be a good source of the bacteria removing hydrogen sulfide. The bacteria were cultivated in the presence of hydrogen sulfide, and then the capability of removing hydrogen sulfide was examined with apparatuses of aerating process and scrubber process. The aerating process showed a good result that about 13 ppm of hydrogen sulfide was almost completely removed at the flow rate of 940 mLmin-1. At higher flow rate, the removal efficiency decreased. The scrubber process did not work well. The gas-liquid contact time was supposed to be the main reason of the low efficiency. In the aerating process, long time operation resulted in the decrease in the removal efficiency with the decrease in the amount of bacteria. Addition of nutrient recovered the efficiency as well as the amount of living bacteria. Thus, the bacteria removing hydrogen sulfide ware heterotrophic. Complete isolation of the bacteria has not been succeeded. Two types of bacterium were observed even after repeated streak on nutrient broth agar media. One of those was Gram-negative bacillus (0.4μm ×1.3μm) and the other was Gram-negative cocuss (0.4μm). 続きを見る

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