紧凑型滴滤床生物反应器在去除污水处理厂散发的恶臭和挥发性有机化合物中的应用。
Application of a compact trickle-bed bioreactor for the removal of odor and volatile organic compounds emitted from a wastewater treatment plant.
机构信息
Ekoinwentyka Ltd, Ruda Śląska, Poland.
Faculty of Civil Engineering, Mechanics and Petrochemistry, Warsaw University of Technology, Plock, Poland.
出版信息
J Environ Manage. 2019 Apr 15;236:413-419. doi: 10.1016/j.jenvman.2019.01.106. Epub 2019 Feb 11.
A compact trickle-bed bioreactor (CTBB) was tested for the removal of volatile organic compounds (VOCs) and hydrogen sulphide (HS) present in the exhaust air of a wastewater treatment plant. At gas-flow rates varying between 2.0 and 30.0 m/h and for specific pollutant loads up to 20 g/(m·h), removal efficiencies for HS and VOC were >95%. The CTBB was designed for a maximum HS concentration of ∼200 ppm and removal efficiencies >97% were noticed. VOC concentrations were in the range of 25-240 ppm and the removal efficiency was in the range of 85-99%. Possible consequences of an excessive pollutant overload and the time required for regenerating the microbial activity and reviving stable process conditions in the CTBB were also investigated. An increase in the HS concentration from 400 to 600 ppm for a few hours caused bioreactor poisoning; however, when original HS concentrations were restored, stable CTBB operation was ascertained within 3 h.
采用紧凑型滴滤床生物反应器（CTBB）对污水处理厂废气中的挥发性有机化合物（VOC）和硫化氢（HS）进行去除。在气体流速为 2.0-30.0 m/h 之间变化，且特定污染物负荷高达 20 g/（m·h）的情况下，HS 和 VOC 的去除效率>95%。CTBB 的设计最大 HS 浓度约为 200 ppm，观察到的去除效率>97%。VOC 浓度范围为 25-240 ppm，去除效率范围为 85-99%。还研究了过量污染物负荷的可能后果，以及在 CTBB 中再生微生物活性和恢复稳定过程条件所需的时间。HS 浓度在几小时内从 400 增加到 600 ppm 导致生物反应器中毒；然而，当恢复原始 HS 浓度时，在 3 小时内确定了稳定的 CTBB 运行。
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