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2022-01-27
在污水池除臭应用中的生物滤池
生物滤池进行臭气治理,在污水池除臭应用中的生物滤池。在生活、工业废水处理过程中,有机物质的腐化、厌氧化、好氧生化反应的进行将产生一些有毒、恶臭的气体,也叫臭气。在生活污水和工业废水中,含有多种无机类,有机类污染物,生活污水常带有一定数量的病原菌。这时候污水池就需要通过采用生物滤池来进行臭气治理。
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在污水池除臭应用中的生物滤池
Date﹕2022-01-27|Source:Eclear Environmental

生物滤池进行臭气治理,在污水池除臭应用中的生物滤池。在生活、工业废水处理过程中,有机物质的腐化、厌氧化、好氧生化反应的进行将产生一些有毒、恶臭的气体,也叫臭气。在生活污水和工业废水中,含有多种无机类,有机类污染物,生活污水常带有一定数量的病原菌。这时候污水池就需要通过采用生物滤池来进行臭气治理。

 生物滤池进行臭气治理,在污水池除臭应用中的生物滤池


在生物过滤池中,必须填充活性填料,有机物含量高,能为微生物生长提供有机营养,形成生物膜。混杂填充物是以大塑料环为骨架,环面均匀地分布有醛化纤纶或维纶丝,可有效提高氧的利用率,增加恶臭气体与填料的接触面积。填充剂应具有良好的表面性能,以维持过滤材料的均一性,有利于生物膜的生长;在过滤过程中,必须有一定的空隙率,防止滤料被悬浮物填满,压降上升而产生短流量。

 

营养素的供给是影响生物滤池启动和稳定运行阶段的重要因素,丰富的营养素可使微生物大量繁殖,提高净化效率。

 

要为生物滤池内的微生物提供良好的生理活动环境,保证系统的净化率,必须对滤池的湿度、温度、pH值进行合理的控制。生物滤池的湿度需要通过控制循环液的流量来调节,而在实际工艺操作中,需要结合不同的填料、菌种来控制合适的表面含水量。

 

此外,滤池循环液过高的pH值会抑制微生物对臭味物质的分解,降低净化效果。通常填料比表面积越大,那么气液传质界面面积越大,同时生物膜表面的液膜厚度也越小,液膜的传质阻力越小,最终得到的净化效果越好。

 

在比表面积不变的情况下,孔隙率越大,气体流通截面积越大,臭气的净化效果就越好。孔隙率的增加也会使滤池中的有效传质面积减小,传质阻力增大,去除率下降。所以综合考虑填料比表面面积,生物滤池填料的孔隙率应控制在一个最优范围。 

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