The immobilized ammonia-nitrogen degrading bacteria were domesticated 160 h before treating ammonia-nitrogen wastewater, which could restore high activity. When the dosage of immobilized ammonia-nitrogen degrading bacteria is 2% (mass fraction), the reaction temperature is 30℃, pH is 8.0 1, and dissolved oxygen is 3.0 mg/L, the mass concentration of ammonia-nitrogen in ammonia-nitrogen wastewater decreases from the initial 3835.29 mg/L to 82. The removal rate is 97.85%. The immobilized ammonia-nitrogen degrading bacteria can still achieve similar ammonia-nitrogen wastewater treatment effect when the dosage is lower than that of ammonia-nitrogen degrading bacteria, which proves that the immobilized ammonia-nitrogen degrading bacteria can effectively treat high-concentration ammonia-nitrogen wastewater.
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