中文关键词生物滴滤塔生物除臭硫化氢恶臭压降填料 英文关键词biotrickling filterbiological odor abatementhydrogen sulfideodorpressure droppacking

作者	单位	E-mail
孙事昊	北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室, 北京 100124 北京市污水脱氮除磷理论与过程控制技术研究中心, 北京 100124	ssh_fire@163.com
贾体沛	北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室, 北京 100124 北京市污水脱氮除磷理论与过程控制技术研究中心, 北京 100124
陈凯琦	北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室, 北京 100124 北京市污水脱氮除磷理论与过程控制技术研究中心, 北京 100124
彭永臻	北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室, 北京 100124 北京市污水脱氮除磷理论与过程控制技术研究中心, 北京 100124	pyz@bjut.edu.cn
张亮	北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室, 北京 100124 北京市污水脱氮除磷理论与过程控制技术研究中心, 北京 100124

中文摘要 在非稳态条件下，采用AAO剩余污泥为种泥、聚丙烯环为填料启动生物滴滤塔，处理实际市政污水厂细格栅H₂S恶臭气体.研究了生物滴滤塔的启动、稳定阶段的运行模式，在空床停留时间为14 s，进气浓度2.02~319.19 mg·m^-3，环境温度为7.8~32.5℃条件下，平均出气浓度为13.08 mg·m^-3，平均去除率达到91.8%，最高去除负荷达到78.37 g·（m³·h）^-1.在247 d运行中，监测到生物滴滤塔压降在长期运行中维持稳定在96 Pa·m^-1.高通量测序表明，生物滴滤塔内的微生物群落发生了改变，Shannon指数由4.99降低至3.75，但Pseudomonas和Thiobacillus等功能菌的存在解释了生物滴滤塔较好的去除性能.结果表明，在非稳态条件下，以AAO剩余污泥为种泥的生物滴滤塔可实现H₂S的高效去除；聚丙烯环作为填料可以在长期运行中维持稳定的压降；微生物群落在长期高浓度的H₂S环境中，多样性降低，但降解性能可以得到提高. 英文摘要 Under transient conditions, a biotrickling filter was developed to treat gaseous H₂S produced from the fine-grid reservoir of a municipal wastewater treatment plant (WWTP) with AAO excess sludge as the inoculum and polypropylene rings as the packing material. The start-up process and steady-state operation of the biotrickling filter were studied. With an empty bed retention time of 14 s, an ambient temperature of 7.8-32.5℃, and an inlet concentration of 2.02-319.19 mg·m^-3, an average removal efficiency of 91.8% was achieved with a maximum H₂S elimination capacity of 78.37 g·(m³·h)^-1. Over a 247-day period, the pressure drop across the biotrickling filter was maintained at 96 Pa·m^-1. Microbial analysis using high-throughput sequencing technology showed a variation in the microbial community during the experiment; the Shannon index dropped from 4.99 to 3.75, and the functional genera Pseudomonas and Thiobacillus were identified as good performers in the biotrickling filter system. These results indicate that the application of AAO excess sludge as an inoculum for biotrickling filters is feasible for effective H₂S removal. A steady pressure drop was achieved using polypropylene rings as the packing material. The diversity of the microbial community showed a downward trend when exposed to H₂S, but the elimination capacity could be increased.

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