Department of Environmental Engineering and Water Technology, IHE Delft Institute for Water Education, P. O. Box 3015, 2601 DA Delft, The Netherlands; Bangladesh Council of Scientific and Industrial Research (BCSIR), BCSIR Laboratories Chittagong, Chittagong 4220, Bangladesh.
Department of Environmental Engineering and Water Technology, IHE Delft Institute for Water Education, P. O. Box 3015, 2601 DA Delft, The Netherlands.
Bioresour Technol. 2019 Feb;273:581-591. doi: 10.1016/j.biortech.2018.11.052. Epub 2018 Nov 14.
The main aim of this study was to evaluate the performance of an aerobic biofilter packed with compost for the removal of gas-phase hydrogen sulfide (HS). After 52 d of operation, the biofilter was re-packed by replacing a certain portion (25%, v/v) of the existing compost with biochar and its performance was tested. The steady and transient performance of the biofilter was evaluated by varying the HS concentrations from 0.1 to 2.9 g m at an empty bed residence time (EBRT) of 119 and 80 s, respectively. The maximum elimination capacity (EC) of the compost and compost + biochar biofilter were ∼19 and 33 g m h, respectively, with >99% removal efficiency at an EBRT of 119 s. The compost biofilter showed a quick response to shock loads and the critical load to the biofilter during the shock loading step was ∼81 g m h.
本研究的主要目的是评估填充堆肥的需氧生物滤池对气相硫化氢 (HS) 的去除性能。经过 52 天的运行后，生物滤池通过用生物炭替换部分（25%，v/v）现有堆肥来重新填充，并对其性能进行了测试。通过将 HS 浓度从 0.1 到 2.9 g/m 分别在空床停留时间（EBRT）为 119 和 80 s 下变化，评估了生物滤池的稳态和瞬态性能。堆肥和堆肥+生物炭生物滤池的最大去除容量（EC）分别约为 19 和 33 g/m/h，在 EBRT 为 119 s 时去除效率>99%。堆肥生物滤池对冲击负荷有快速响应，在冲击负荷步骤中生物滤池的临界负荷约为 81 g/m/h。
