Abstract
In this paper, a study of a new process with nitrosofication and denitrosofication for nitrogen removal from coal gasification wastewater is reported. In the process, fibrous carriers were packed in an anoxic tank and an aerobic tank for the attached growth of the denitrifying bacteria and Nitrobacter respectively, and the suspended growth activated sludge was used in an aerobic tank for the growth of Nitrosomonas. A bench scale test has been carried out on the process, and the test results showed that using the process, 25% of the oxygen demand and 40% of the carbon source demand can be saved, and the efficiency of total nitrogen removal can increase over 10% as compared with a traditional process for biological nitrogen removal.
| Original language | English |
|---|---|
| Pages (from-to) | 39-46 |
| Number of pages | 8 |
| Journal | Water Science and Technology |
| Volume | 38 |
| Issue number | 1 pt 1 |
| DOIs | |
| State | Published - 1998 |
| Event | Proceedings of the 1998 19th Biennial Conference of the International Association on Water Quality. Part 1 (of 9) - Vancouver, Can Duration: 21 Jun 1998 → 26 Jun 1998 |
Keywords
- Coal gasification wastewater
- Denitrosofication
- Nitrogen removal
- Nitrosofication
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