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采用脂磷法、平板菌落计数法(HPC)和比耗氧摄取速率(SOUR)研究中试规模升流式生物活性炭(BAC)滤池中的生物量和生物活性的空间分布,同时结合出水水质评价BAC的净水效果。研究结果表明,BAC滤池可有效去除污染物,BAC滤池对CODMn,UV254和氨氮的平均去除率分别高达43.3%,45.7%和92.9%。大部分污染物在炭柱的前400 mm滤料层中被去除,这与生物量分布规律一致。生物量沿水流方向而减少,磷脂量从7.49 nmol/cm3降为4.86 nmol/cm3;菌落数由2.26×107CFU/cm3减少至1.12×107CFU/cm3;单位体积炭的SOUR在10 2mg/(cm3.h)的数量级,具有与生物量不同的变化规律。此外,BAC滤池出水具有生物安全性。
The spatial distribution of biomasses and bioactivities in pilot-scale up-flow bio-activated carbon (BAC) filter was studied by using the methods of fat-phosphorus, plate colony counting (HPC) and specific oxygen uptake rate (SOUR) Evaluate the BAC water purification effect. The results show that BAC filter can effectively remove pollutants. The average removal rates of CODMn, UV254 and ammonia nitrogen in BAC filter are 43.3%, 45.7% and 92.9% respectively. Most of the contaminants were removed in the first 400 mm of the carbon column, consistent with the biomass distribution. The amount of phospholipids decreased from 7.49 nmol / cm3 to 4.86 nmol / cm3, the number of colonies decreased from 2.26 × 107 CFU / cm3 to 1.12 × 107 CFU / cm3, and SOUR per unit volume of carbon was 10 2 mg / (cm3). h) of the order of magnitude, with different biomass changes. In addition, BAC filter effluent is biosecure.