Method for realizing shortcut nitration of high ammonia nitrogen wastewater
A short-range nitrification and high-ammonia-nitrogen technology, which is applied in the treatment of high-ammonia-nitrogen wastewater and is stably maintained in the field of high-ammonia-nitrogen wastewater treatment by short-range nitrification, can solve the problem of unrealistic FA concentration control in sewage treatment plants, rare successful applications of biological denitrification, and DO. Concentration is difficult to control stably, etc., to achieve long-term stable nitrosation capacity, reduced control accuracy requirements, and a wide range of applicable conditions.
Examples
Embodiment 1
[0026] The first stage of flora cultivation: the enrichment of nitrifying flora, the composition of the enrichment medium used is (NH 4 ) 2 SO 4 (NH 4 + -N initial concentration is 150mg / L, final concentration is 1000mg / L), FeSO 4 ·7H 2 O(Fe 2 + Concentration is 12mg / L), MgSO 4 ·7H 2 O(Mg 2+ Concentration is 18mg / L), NaCl(Na + Concentration is 800mg / L), CaCl 2 (Ca 2+ Concentration is 16mg / L) and KH 2 PO 4 (K + Concentration is 260mg / L). During the enrichment process, NaHCO 3 The solution adjusts the pH. Culture conditions: temperature 24°C; pH 6.0-7.5; SV 15%-20%; DO 4mg L -1 . One cycle per day, the water intake time is 20 minutes, the aeration is 23 hours, the natural settlement is 30 minutes, and the supernatant is removed. Then add the enriched culture solution with the same volume as the supernatant, and operate in a cycle according to this process. During the process, the ammonia nitrogen concentration in the water is detected by the distillation titr...
Embodiment 2
[0031] The first stage of flora cultivation: the enrichment of nitrifying flora, the composition of the enrichment medium used is (NH 4 ) 2 SO 4 (NH 4 + -Initial concentration 150mg / L, final concentration 1000mg / L), FeSO 4 ·7H 2 O(Fe 2 + Concentration is 12mg / L), MgSO 4 ·7H 2 O(Mg 2+ Concentration is 18mg / L), NaCl(Na + Concentration is 800mg / L), CaCl 2 (Ca 2+ Concentration is 16mg / L) and KH 2 PO 4 (K + Concentration is 260mg / L). During the enrichment process, NaHCO 3 The solution adjusts the pH. Culture conditions: temperature 24°C; pH 6.0-7.5; SV 15%-20%; DO 4mg L -1 . One cycle per day, the water intake time is 20 minutes, the aeration is 23 hours, the natural settlement is 30 minutes, and the supernatant is removed. Then add the enriched culture solution with the same volume as the supernatant, and operate in a cycle according to this process. During the process, the ammonia nitrogen concentration in the water is detected by the distillation titration me...
Embodiment 3
[0036] The first stage of flora cultivation: the enrichment of nitrifying flora, the composition of the enrichment medium used is (NH 4 ) 2 SO 4 (NH 4 + -Initial concentration 150mg / L, final concentration 1000mg / L), FeSO 4 ·7H 2 O(Fe 2 + Concentration is 12mg / L), MgSO 4 ·7H 2 O(Mg 2+ Concentration is 18mg / L), NaCl(Na + Concentration is 800mg / L), CaCl 2 (Ca 2+ Concentration is 16mg / L) and KH 2 PO 4 (K + Concentration is 260mg / L). During the enrichment process, NaHCO 3 The solution adjusts the pH. Culture conditions: temperature 24°C; pH 6.0-7.5; SV 15%-20%; DO 4mg L -1 . One cycle per day, the water intake time is 20 minutes, the aeration is 23 hours, the natural settlement is 30 minutes, and the supernatant is removed. Then add the enriched culture solution with the same volume as the supernatant, and operate in a cycle according to this process. During the process, the ammonia nitrogen concentration in the water is detected by the distillation titration me...
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Description
Claims
Application Information
- IPC
- C02F3/12; C02F3/34
- CPC
- Y02W10/10
- Inventors
- 高会杰; 李志瑞