GUO Chun-hui,QIU Li-ping,WANG Guang-wei,et al.Treatment of High Ammonia Nitrogen Raw Water Treatment by a Pilot-scale Air Flotation and Enhanced Biological Treatment Process[J].China Water & Wastewater,2020,36(17 17):85-89.
Treatment of High Ammonia Nitrogen Raw Water Treatment by a Pilot-scale Air Flotation and Enhanced Biological Treatment Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
17 17
Page:
85-89
Column:
Date of publication:
2020-09-01
- Keywords:
- biological activated carbon circulating fluidized bed; air flotation; high ammonia nitrogen; Huaihe River raw water
- Abstract:
- In order to explore a new technology for the treatment of seasonal high ammonia nitrogen raw water, a pilot-scale reactor was constructed to treat source water from middle section of Huaihe River,and the removal efficiencies of pollutants (such as organics, ammonia nitrogen, etc) by biological activated carbon circulating fluidized bed and air flotation process were investigated. The combined process had a good performance on the removal of pollutants in the seasonal high ammonia nitrogen raw water. Turbidity, UV410, permanganate index, and UV254 in the effluent were lower than 0.5 NTU, 0.003 cm-1, 2 mg/L and 0.047 cm-1, respectively, and effluent ammonia nitrogen was about 0.10 mg/L. Nitrite nitrogen and odor were also removed effectively by this process. All the indexes detected in the effluent of this process were lower than those of conventional treatment process at the same time.In addition, this process had a strong adaptability to temperature and had a good shock load resistance.
Last Update:
2020-09-01