A new water treatment system based on material circulation was constructed for purification of naturally polluted pond water in an aquarium. The water treatment system consisted of microbial columns with different flow rates (1.8 L/min/column in 6-columns unit and 2.9 L/min/column in 3-columns unit). Two hundred liters of water from a naturally polluted pond were treated for 14 days using the water treatment system. After treatment, the COD, TC, and TN had been reduced by up to 19.2%, 14.4%, and 20.1%, respectively. The bacterial biomass in the 3-columns unit was 7-fold higher than that in the 6-columns unit, and PCR-DGGE analysis showed slightly different bacterial communities between the two columns (<86%). The new water treatment system also worked efficiently in a fish-cultivated aquatic environment, with TC and TN removal rates of 190 mg/week and 260 mg/week, respectively.
展开▼
机译：构建基于材料循环的新水处理系统，用于纯化水族箱中天然污染的池塘水。水处理系统由微生物柱组成，具有不同流速（1.8升/最小/柱，在6柱单元中，3柱单元中的2.9 L / min /柱）。使用水处理系统治疗来自天然污染的池塘的两百升水14天。治疗后，COD，TC和TN分别降低了高达19.2％，14.4％和20.1％。 3柱单元中的细菌生物量高于6柱单元中的7倍，PCR-DGGE分析在两列（<86％）之间显示出略微不同的细菌群落。新的水处理系统还有效地在鱼类耕种的水生环境中工作，TC和TN分别为190毫克/周和260毫克/周的去除率。
展开▼
