通过部分脱加上Anammox,通过使用生物过器和连续动坦克反应堆,对通过部分脱去除的比较研究
Longyan Chang1, Dingying Ning2, Fuxiong Nan3
1Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710035, China; Qianjiang Water Resources Development Co., Ltd., Hangzhou 310000, China.
Bioresource technology
|September 12, 2025
概括
在生物过器 (BF) 中,与Anammox (PDN/A) 工艺相结合的部分脱显示出比连续水箱反应堆 (CSTR) 更高的去除率. PDN/A-BF在去除方面更有效,而PDN/A-CSTR则为低强度废水提供更好的稳定性.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 部分脱与Anammox (PDN/A) 工艺相结合的部分脱是一种节能去除的方法.
- 这个过程克服了与传统废水处理中酸盐和酸盐不平衡相关的局限性.
研究的目的:
- 为了比较PDN/A在生物过器 (BF) 和连续水箱反应堆 (CSTR) 的性能.
- 在两个反应堆配置中评估去除率,微生物活动和系统稳定性.
主要方法:
- 在BF和CSTR系统中直接比较PDN/A性能.
- 量化去除速率 (NRR),Anammox活性,总去除效率 (TNRE) 和化学氧气需求去除效率 (CODRE).
- 微生物社区分析以确定主导的Anammox细菌 (AnAOB) 和其他有助于基因的基因.
主要成果:
- 与PDN/A-CSTR (0.67 ± 0.05 kg-N m−3 d−1) 相比,PDN/A-BF实现了显著更高的NRR (1.36 ± 0.12 kg-N m−3 d−1) 与PDN/A-CSTR (0.67 ± 0.05 kg-N m−3 d−1) 相比.
- PDN/A-BF表现出优越的Anammox去活动 (91.09 ± 10.66%) 与PDN/A-CSTR (72.42 ± 10.09%).
- 在超低基质条件下PDN/A-CSTR表现出更好的稳定性,TNRE为64.8±3.41%和CODRE为58.88±5.51%.
结论:
- PDN/A-BF在除效率方面表现出色,但面临着堵塞等操作挑战.
- 尽管效率较低,但PDN/A-CSTR为低强度废水处理提供了稳定的性能.
- 优化BF反应堆设计和探索CSTR的移动生物载体是未来研究的建议,以提高AnAOB活动和系统稳定性.
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