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采用生物粉末活性炭-超滤(BPAC-UF)组合工艺对模拟微污染水源水中的嗅味物质进行了去除试验,并对组合工艺中微生物量的分布和变化进行了测定.结果表明,相比混凝沉淀常规工艺,BPAC-UF组合工艺对微污染水源水中的嗅味物质有较好的控制效果,对二甲基三硫醚、2-甲基异莰醇和β-紫罗兰酮的平均去除率分别可达77.51%、65.86%和98.43%,并且对原水冲击负荷有更好的适应性;炭池是组合工艺中去除嗅味物质的主要单元,其微生物量远高于其它区域;炭池生物量变化平稳,组合工艺对原水中嗅味物质的去除具有稳定性.
The removal of the olfactory substances in the micro-polluted source water by the combination of biological powder activated carbon-ultrafiltration (BPAC-UF) and the determination of the distribution and the change of microbial biomass in the combined process were carried out. Coagulation sedimentation conventional process, BPAC-UF combination of slightly polluted water source of water smell odor substances have good control effect on dimethyl trisulfide, 2-methyl iso-莰 and β-ionone average removal rate respectively Up to 77.51%, 65.86% and 98.43%, respectively, and has better adaptability to the impact load of raw water. The carbon pool is the main unit for removing odor substances in the combination process, and the microbial biomass is much higher than other regions. The change is stable, and the combination process has the stability to the removal of odor substances in the raw water.