Denitrification of drinking water by a combined process of heterotrophication and electrochemical autotrophication | |
Qu, JH; Fan, B; Ge, JT; Liu, HJ | |
2002 | |
会议名称 | International Conference on Environmental Concerns and Emerging Abatement Technologies for Toxic Substances |
会议日期 | OCT 09-12, 2001 |
会议地点 | BEIJING, PEOPLES R CHINA |
关键词 | denitrification drinking water heterotrophication autotrophication electrochemical process |
英文摘要 | A combined two-step process of heterotrophic and electrochemical autotrophic denitrification was developed for the treatment of nitrate-contained drinking water. The water was first treated with heterotrophic biological denitrification and was further purified with electrochemical autotrophic denitrification. The two steps were carried out in a heterotrophication-electrochemical autotrophication combined reactor (HEAR). The lower section performed as the heterotrophic biological reactor and the upper section acted as the electrochemical autotrophic reactor. The bioreactor was a packed bed of anthracite particles, and the water flow was directed in an upward continuous mode. The total nitrate and nitrite concentration, and residual methanol in the effluent were monitored to evaluate the performance of the reactor. The reactor was operated for one year with a feed concentration of 40 mg NO3--N/l. There was no nitrite or residual methanol accumulation in the effluent when the feed C: N ratios (m/m) varied from 2.2 to 2.9. However, slightly excessive methanol dosage could increase the denitrifying capacity of the reactor. The maximum denitrification load of the reactor at 24degreesC was 10.68 g NO3-/m(3) h (47 g NO3-) at C : N = 2.5. |
ISSN号 | 1093-4529 |
内容类型 | 会议论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/24816] |
专题 | 生态环境研究中心_环境水质学国家重点实验室 |
推荐引用方式 GB/T 7714 | Qu, JH,Fan, B,Ge, JT,et al. Denitrification of drinking water by a combined process of heterotrophication and electrochemical autotrophication[C]. 见:International Conference on Environmental Concerns and Emerging Abatement Technologies for Toxic Substances. BEIJING, PEOPLES R CHINA. OCT 09-12, 2001. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论