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2022-02-15
污水厂生物除臭工艺
近年来,针对污水厂的臭气处理,生物除臭技术以其工艺相对成熟、基建费用低、操作维护简单、污染物净化彻底且处理效果好等特点而在实际应用中逐渐推广,目前已经有很多的污水厂、公共区域的恶臭应用生物除臭工艺,同时针对VOC和有毒气体排放物的去除又很有帮助,污水厂生物除臭工艺已成为城市污水处理中臭气处理的主流工艺。 污水处理厂的臭气成分分为三类: ①含硫化合物,如H2S、硫醇、硫醚类; ②含氮化合物,如氨、胺类、酰胺、吲哚等; ③含氧有机物,如醇、酚、醛、酮、有机酸等。 其中H2S、NH3,是臭味的主要组成成分。在采用二级生物处理工艺的污水处理厂中,一般包括粗格栅、提升泵站、细格栅及沉砂池、生物反应池、二沉池、消毒池等构筑物,其产生的污泥一般在厂区内贮存、浓缩、脱水,有的还要进行消化稳定处理。 可以看出,污水前处理部分(格栅井、提升泵房集水池及沉砂池)和生物反应池中的厌氧段和污泥处理部分(贮泥池、脱水问等)是除臭的重点。 生物滤池除臭原理 恶臭气体在生物滤池中的吸附净化一般要经历以下几个步骤: ①废气中的有机污染物首先同水接触并溶解
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污水厂生物除臭工艺
Date﹕2022-02-15|Source:Eclear Environmental

近年来,针对污水厂的臭气处理,生物除臭技术以其工艺相对成熟、基建费用低、操作维护简单、污染物净化彻底且处理效果好等特点而在实际应用中逐渐推广,目前已经有很多的污水厂、公共区域的恶臭应用生物除臭工艺,同时针对VOC和有毒气体排放物的去除又很有帮助,污水厂生物除臭工艺已成为城市污水处理中臭气处理的主流工艺。

污水厂生物除臭工艺

污水处理厂的臭气成分分为三类:

①含硫化合物,如H2S、硫醇、硫醚类;

②含氮化合物,如氨、胺类、酰胺、吲哚等;

③含氧有机物,如醇、酚、醛、酮、有机酸等。

其中H2SNH3,是臭味的主要组成成分。在采用二级生物处理工艺的污水处理厂中,一般包括粗格栅、提升泵站、细格栅及沉砂池、生物反应池、二沉池、消毒池等构筑物,其产生的污泥一般在厂区内贮存、浓缩、脱水,有的还要进行消化稳定处理。

可以看出,污水前处理部分(格栅井、提升泵房集水池及沉砂池)和生物反应池中的厌氧段和污泥处理部分(贮泥池、脱水问等)是除臭的重点。

生物滤池除臭原理

恶臭气体在生物滤池中的吸附净化一般要经历以下几个步骤:

①废气中的有机污染物首先同水接触并溶解(或混合)于水中,即由气膜扩散进入液膜;

②溶解(或混合)于液膜中的有机污染物在浓度差的推动下进一步扩散到生物膜内,进而被其中的微生物捕获并吸收;

③进入微生物体内的有机污染物在其自身的代谢过程中作为能源和营养物质被分解,最终转化为无害的化合物。

在净化过程中,总吸收速率主要取决于气、液两相中的有机污染物扩散速率(气膜扩散、液膜扩散)和生化反应速率。

污水厂生物除臭工艺

羿清生物滤池除臭设备

生物滤池设备是通过高效的除臭菌种和合理的设备结构,使大分子或结构复杂的有机物经异化作用最终氧化分解为简单的水、二氧化碳等无机物。

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