State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China.
J Environ Sci (China). 2011;23(4):568-74. doi: 10.1016/s1001-0742(10)60449-4.
Moving bed biofilm reactor (MBBR) was used to treat real coal gasification wastewater. Nitrification of the MBBR was inhibited almost completely during start-up period. Sudden increase of influent total NH3 concentration was the main factor inducing nitrification inhibition. Increasing DO concentration in the bulk liquid (from 2 to 3 mg/L) had little effect on nitrification recovery. Nitrification of the MBBR recovered partially by the addition of nitrifying sludge into the reactor and almost ceased within 5 days. Nitrification ratio of the MBBR achieved 65% within 12 days by increasing dilute ratio of the influent wastewater with tap water. The ratio of nitrification decreased to 25% when influent COD concentration increased from 650 to 1000 mg/L after nitrification recovery and recovered 70% for another 4 days.
移动床生物膜反应器（MBBR）用于处理实际的煤气化废水。在启动期间，MBBR 的硝化作用几乎完全受到抑制。进水总 NH3 浓度的突然增加是导致硝化抑制的主要因素。增加主体液体中的 DO 浓度（从 2 增加到 3mg/L）对硝化恢复几乎没有影响。通过向反应器中添加硝化污泥，MBBR 的硝化作用部分恢复，但在 5 天内几乎停止。通过用自来水增加进水的稀释比，硝化恢复后，MBBR 的硝化率在 12 天内达到 65%。当进水 COD 浓度从 650mg/L 增加到 1000mg/L 时，硝化比下降到 25%，硝化恢复 70%，又持续了 4 天。
