两段式恒化器中微生物对镉的去除。
Removal of cadmium by microorganisms in a two-stage chemostat.
机构信息
University of Liège, Institute of Botany, Microbial Ecology, Sart Tilman, B-4000 Liège, Belgium.
出版信息
Appl Environ Microbiol. 1984 May;47(5):1158-60. doi: 10.1128/aem.47.5.1158-1160.1984.
A two-stage chemostat was used to study removal of cadmium by microorganisms in continuous culture. The medium was contaminated with 0.8 mg of Cd per liter. At 20 degrees C, most of the microbial biomass formed aggregates which settled in the second stage of the chemostat. Effluent was free of bacteria. Up to 80% of the metal contained in the inlet flux was removed by the biomass, with 20% remaining in solution. At 10 degrees C and with a shorter retention time, flocculation was poorer and metal removal by settling biomass did not exceed 35%.
采用两段式恒化器培养微生物，研究其在连续培养条件下对镉的去除作用。培养液中镉的起始浓度为 0.8mg/L。在 20℃时，大部分微生物生物量形成聚集体沉降到恒化器的第二级。流出液中不含细菌。进入的水流中 80%的金属被生物量去除，20%的金属仍留在溶液中。在 10℃和较短的停留时间下，絮凝效果较差，沉降生物量对金属的去除率不超过 35%。
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