| 摘要 |
A process for prodn. of bacteria in anaerobic medium comprises inoculating a liq. medium at pH 3.5-3.8 with chosen spores, culturing the spores in the liq. with introduction of glucose, yeast extract, maize flour, NaCl, MgSO4.7H20, KH2PO4 and FeSO4.7H20, maintaining the mixt. at constant temp. in a dark chamber, drying the mixt. in an ultraviolet oven, and mixing the prod. with an equal wt. of flour. USE/ADVANTAGE - Pref. the process is used for prodn. of azobacteria which are capable of purifying oils polluted with mixts. of organochlorine cpds. (PCBs) and trichlorobenzene, and esp. for purification of transformer oils to remove the toxic substances to allow re-use of the oil. This is more economical that incineration of the contaminated oils, which can cause pollution of the atmos. and which leads to simultaneous destruction of the oil. Treatment of the oil can be carried out in situ using a treatment unit mounted on a lorry or railway truck.
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