Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-ku, Sapporo, Hokkaido 062-8517 Japan; Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-ku, Sapporo, Hokkaido 062-8517 Japan; Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
Water Res. 2024 Jul 1;258:121762. doi: 10.1016/j.watres.2024.121762. Epub 2024 May 10.
In this study, we aimed to establish high-rate biological treatment of purified terephthalic acid (PTA) and dimethyl terephthalate (DMT) wastewater that minimizes the inhibitory effects of high concentration benzoate and acetate. To achieve this, we developed a novel bioreactor system and biostimulation strategy. An internal two-stage upflow anaerobic (ITUA) reactor was operated with (i) a packed bed containing green tuff medium underlying (ii) a compartment seeded with anaerobic granular sludge. Ethylene glycol was amended to stimulate syntrophic interactions. Continuous operation of the system for 1,026 days achieve an organic removal rate of 11.0 ± 0.6 kg COD/m/d. The abundance of aromatic degraders significantly increased during operation. Thus, we successfully developed a high-rate treatment system to treat wastewater from the PTA/DMT manufacturing processes by activating syntrophs in an ITUA reactor.
在这项研究中，我们旨在建立一种高效的生物处理方法，用于净化对苯二甲酸（PTA）和对苯二甲酸二甲酯（DMT）废水，同时最大限度地减少高浓度苯甲酸和乙酸的抑制作用。为此，我们开发了一种新型的生物反应器系统和生物刺激策略。内部两段式上流式厌氧（ITUA）反应器采用（i）填充有绿凝灰岩介质的填充床，（ii）填充有接种了厌氧颗粒污泥的隔室。添加乙二醇以刺激共代谢相互作用。该系统连续运行 1026 天，实现了 11.0 ± 0.6 kg COD/m/d 的有机去除率。运行过程中芳香族降解菌的丰度显著增加。因此，我们成功地通过在 ITUA 反应器中激活共代谢物，开发了一种高效的处理系统，用于处理 PTA/DMT 制造工艺产生的废水。
