Department of Chemical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India.
Department of Chemical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India.
Bioresour Technol. 2019 Aug;285:121317. doi: 10.1016/j.biortech.2019.121317. Epub 2019 Apr 3.
The main aim of this work was to evaluate the performance of a biofilter packed with a mixture of compost and activated carbon, for gas-phase toluene removal under very high loading rates. Plaster of Paris was used as a binder to improve the mechanical strength and durability of the packing media. The biofilter was operated continuously for a period of ∼110 days and at four different flow rates (0.069, 0.084, 0.126 and 0.186 m h), corresponding to toluene loading rates of 160-8759 g m h. The maximum elimination capacity (EC) achieved in this study was 6665 g m h, while the removal efficiency (RE) varied from ∼70 to >95% depending on the loading rate tested. The biofilter was able to remove >99% of toluene using Pseudomonas sp. RSST (MG 279053) as the dominant toluene degrading biocatalyst.
本工作的主要目的是评估在非常高的负荷率下，用堆肥和活性炭混合物填充的生物滤池对气相甲苯去除的性能。熟石膏被用作粘结剂，以提高包装材料的机械强度和耐久性。生物滤池连续运行了约 110 天，并在四个不同的流速（0.069、0.084、0.126 和 0.186 m h）下运行，对应于甲苯的负荷率为 160-8759 g m h。在这项研究中，达到的最大去除容量（EC）为 6665 g m h，而去除效率（RE）则根据测试的负荷率从约 70%到>95%变化。生物滤池能够使用 Pseudomonas sp. RSST（MG 279053）作为主要的甲苯降解生物催化剂去除>99%的甲苯。
