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复合生物滤池处理H2S和NH3的挂膜与工艺条件

Keywords: 复合生物滤池,硫化氢,氨气,生物脱臭,表面改性天然斜发沸石

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Abstract:

采用复合生物滤池(生物滴滤池+生物过滤池)处理H2S和NH3组成的混合恶臭气体,填料分别为经表面改性的天然斜发沸石和木屑。实验研究了该工艺的驯化挂膜情况和主要工艺条件,结果表明,天然斜发沸石和木屑改性后,驯化挂膜周期为10~14d,比文献中颗粒活性炭挂膜缩短14~18d。复合生物滤池的最佳工艺条件为:高度120cm,循环液流量4.56L/h。同时,生物滴滤池处理水溶性好的NH3气体效果较生物过滤池好,而生物过滤池处理水溶性差的H2

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