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本试验针对高浓度氨氮废水的特点。提出了一种A/O的改进式工艺,并进行了大量的试验研究。研究结果表明,该工艺系统不仅能有效地去除废水中的氨氮,同时可去除有机污染物。具有负荷高、HRT短的特点,氨氮去除率为90～99.9%,COD去除率为80～95%。在某些工业废水中,如煤气、焦化和氮肥等工业废水,含有高浓度的氨氮,一般可达数百毫克/升,有些竟达几千毫克/升,若不将其进行有效的处理,对受纳水体危害很大。因此,研究经济有效的污水脱氮技术是十分必要的。
The test for the high concentration of ammonia nitrogen wastewater characteristics. A modified A / O process was proposed and a large number of experimental studies were carried out. The results show that the process system not only can effectively remove ammonia nitrogen in wastewater, but also can remove organic pollutants. With high load, short HRT, ammonia nitrogen removal rate of 90 ~ 99.9%, COD removal rate of 80 to 95%. In some industrial wastewater, such as gas, coking and nitrogen fertilizer and other industrial wastewater, containing high concentrations of ammonia nitrogen, usually up to hundreds of milligrams / liter, some as many as several thousand milligrams / liter, if not be effectively treated, Very damaging to receiving water. Therefore, the study of cost-effective sewage denitrification technology is very necessary.