State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
Bioresour Technol. 2020 Oct;314:123717. doi: 10.1016/j.biortech.2020.123717. Epub 2020 Jun 22.
Two-stage pilot-scale partial nitrification (PN)-anammox reactors were successfully operated for the treatment of reject-water (record as TRW) produced from the anaerobic digestion of thermal hydrolysis-treated sludge (THPAD). The PN reactor was operated stalely and Nitrosomonas was the major ammonia-oxidizing bacteria. In the anammox reactor, anammox activity doubled from day 3 to day 53 demonstrating that anammox adapted to the PN effluent. After acid shock at pH 4 for approximately 1 h, anammox was seriously inhibited and required approximately 60 days for recovery. This provided a reference for handling similar accidents. In the next 166 days, the load reached 0.40-0.51 kg N/(m·d) in the presence of high concentration COD (798-1313 mg/L), suggesting anammox can be used in high concentration organic wastewater. Under the combined action of anammox and denitrification, 94.7% nitrogen was removed. These results demonstrated TRW can be treated using PN-anammox technology which was conducive to the popularization of THPAD.
两段式中试规模部分硝化（PN）-厌氧氨氧化反应器成功地用于处理由热解处理污泥（THPAD）厌氧消化产生的废水（记为 TRW）。PN 反应器稳定运行，亚硝化菌是主要的氨氧化菌。在厌氧氨氧化反应器中，厌氧氨氧化活性从第 3 天到第 53 天增加了一倍，表明厌氧氨氧化适应了 PN 出水。在 pH 为 4 左右的酸性冲击下，约 1 小时后，厌氧氨氧化受到严重抑制，需要约 60 天才能恢复。这为处理类似事故提供了参考。在接下来的 166 天里，在高浓度 COD（798-1313mg/L）存在的情况下，负荷达到 0.40-0.51kgN/（m·d），表明厌氧氨氧化可用于高浓度有机废水。在厌氧氨氧化和反硝化的共同作用下，94.7%的氮被去除。这些结果表明，可以使用 PN-厌氧氨氧化技术处理 TRW，这有利于 THPAD 的推广。
