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2021-09-18
酸性洗涤塔-生物滤池组合工艺处理恶臭气体
关于酸性洗涤塔-生物滤池塔组合工艺处理恶臭气体NH3和H2S的解读,希望对你有所帮助
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酸性洗涤塔-生物滤池组合工艺处理恶臭气体
Date﹕2021-09-18|Source:Eclear Environmental

生物滤池

恶臭物质来源广泛,主要来自畜禽养殖、城市污水处理厂、食品加工、天然气、石油炼制、农药生产、人造纤维等生产工艺。恶臭气体可分为五类:含硫化合物;含氮化合物;卤素和衍生物;烃类;含氧有机物。其中,硫化合物中的H2S和氮化合物中的NH3是影响最广的恶臭物质。

恶臭污染的处理方法包括物理法、化学法和生物法。生物法以其处理效果好、工艺简单、运行稳定、投资运行成本低、能耗低、无二次污染等优点,成为控制恶臭污染的有效方法。生物滤池作为一种简单有效的生物处理恶臭气体的方法,近年来发展迅速。

NH3和H2S恶臭混合气体采用酸性洗涤塔、生物滤塔和生物曝气池的组合工艺处理。研究表明,该组合工艺对NH3和H2S有很好的去除效果。当进气流量为35L/min,喷淋量为45L/h时,NH3进气浓度为50.15~525.4mg/m3,H2S进气浓度为10.23~110.36mg/m3时,NH3单进气去除率稳定在99%以上。混合进气后,NH3的去除率几乎为100%,H2S的去除率提高到98%以上。NH3浓度范围内,NH3和H2S之间的相互作用对两者的去除效果没有明显影响,并起到相互促进降解的作用。同时,进气流量和填料层高度会影响NH3和H2S的去除率。该系统对进气体积负荷变化有很强的缓冲能力,在偶尔超负荷条件下运行不能使系统崩溃,微生物逐渐对高负荷表现出适应性。大部分溶于水的氨被生物曝气池去除,去除率达到96.9%。

以上是羿清关于酸性洗涤塔-滤池塔组合工艺处理恶臭气体NH3和H2S的解读,希望对你有所帮助。

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