SBR (Sequencing batch reactor) nitrosation quick start method
A rapid start-up, nitrosation technology, applied in the field of urban sewage treatment and resource utilization, to achieve the effect of high start-up efficiency
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[0022] The test is based on simulated sewage, and the specific water quality is as follows:
[0023] Influent water quality during startup: NH 4 + -N=300-500mg / L, pH=7.70~8.20, temperature 25±1℃.
[0024] Influent water quality during steady operation of medium ammonia nitrogen: NH 4 + -N=150±15mg / L, pH=7.70~8.20, temperature 25±1℃.
[0025] Influent water quality during stable operation with low ammonia nitrogen: NH 4 + -N=50±5mg / L, pH=7.70~8.20, temperature 25±1℃.
[0026] The specific processing is as follows:
[0027] Operation effect of nitrosated sludge during the startup stage figure 1
[0028] Inoculate the backflow nitrification sludge from the sewage treatment plant into the SBR reactor, control the influent ammonia nitrogen concentration to 300-500mg / L, control the aeration volume to make the dissolved oxygen 0.2-0.5mg / L, control the aeration time to make the ammonia oxidation rate Control at 30%-50%, add sodium bicarbonate to adjust the pH to maintain it at 7.70-8.20. The u...
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