[1]李伟光,吕龙义,金佳林,等.两级生物强化过滤处理低温微污染地下水中试研究[J].中国给水排水,2021,37(21):26-32.
LI Wei-guang,Lü Long-yi,JIN Jia-lin,et al.Pilot-scale Study on Treatment of Low-temperature and Micro-polluted Groundwater by Two-stage Bio-enhanced Filtration[J].China Water & Wastewater,2021,37(21):26-32.
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LI Wei-guang,Lü Long-yi,JIN Jia-lin,et al.Pilot-scale Study on Treatment of Low-temperature and Micro-polluted Groundwater by Two-stage Bio-enhanced Filtration[J].China Water & Wastewater,2021,37(21):26-32.
两级生物强化过滤处理低温微污染地下水中试研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第37卷
期数:
2021年第21期
页码:
26-32
栏目:
出版日期:
2021-11-01
- Title:
- Pilot-scale Study on Treatment of Low-temperature and Micro-polluted Groundwater by Two-stage Bio-enhanced Filtration
- Keywords:
- micro-polluted groundwater; biological enhancement; two-stage filtration process; low temperature; organic matter
- 摘要:
- 针对低温微污染地下水,设计开发了两级生物强化过滤工艺,研究了生物强化作用对污染物去除效果的影响。结果表明:最佳工艺流程为原水→一级跌水曝气→一级生物强化过滤(无烟煤+锰砂)→二级鼓风曝气→二级生物强化过滤(活性炭+无烟煤)→出水,稳定出水浊度为0.2 NTU、色度为3度、锰含量为0.03 mg/L、铁含量为0.01 mg/L、CODMn为1.9 mg/L、氨氮为0.05 mg/L,远低于《生活饮用水卫生标准》(GB 5749—2006)限值;生物强化作用可以显著提升对氨氮和有机物的去除效果,大部分有机物在二级生物强化过滤单元被去除;“活性炭+无烟煤”的滤料组合相对“无烟煤+锰砂”滤料组合的生物量及生物活性更高,更适合微生物的负载。
- Abstract:
- Aiming at the low-temperature and micro-polluted groundwater, a two-stage bio-enhanced filtration process was developed, and the effect of biological enhancement on pollutant removal was studied. The results showed that the optimum technological process was as follows: raw water → primary drop aeration→primary bio-enhanced filtration (anthracite+manganese sand)→secondary blast aeration→secondary bio-enhanced filtration (activated carbon+anthracite)→effluent. The turbidity of 0.2 NTU, chromaticity of 3 degrees, manganese content of 0.03 mg/L, iron content of 0.01 mg/L, CODMn of 1.9 mg/L, ammonia nitrogen of 0.05 mg/L in stable effluent were much lower than the limit of Standard for Drinking Water Quality (GB 5749-2006). Biological enhancement could significantly improve the treatment efficiency of ammonia nitrogen and organic matters, and most of the organic matters were removed in the secondary bio-enhanced filtration unit. The biomass and biological activity of the filter media of “activated carbon + anthracite” were higher than those of “anthracite + manganese sand”, and the filter media of “activated carbon + anthracite” was more suitable for the loading of microorganisms.
更新日期/Last Update:
2021-11-01