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通过部分化/脱加上Anammox使用三阶段无氧/氧生物膜工艺与间歇性通风进行增强的去除

Zhuang Zhang¹, Deyong Li¹, Changhui Zhou¹

¹Guangdong Engineering Research Center of Water Treatment Processes and Materials, Guangdong Key Laboratory of Environmental Pollution and Health, and School of Environment and Climate, Jinan University, Guangzhou 510632, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China.

|March 23, 2024

概括

这项研究开发了一种三阶段的无氧/有氧生物膜工艺,并进行间歇性通风,以增强废水中的去除. 这种创新方法有效地去除了全部无机 (TIN),同时最大限度地减少了氧化排放.

科学领域:

环境科学环境科学
环境工程环境工程
微生物学微生物学

背景情况:

可持续的污水处理需要有效的去除,其中Anammox过程至关重要.
低C/N比率的废水对传统的去除方法提出了挑战.
将生物气生产与废水处理相结合,可以提高整体可持续性.

研究的目的:

设计和评估一个三阶段无氧/有氧 (AO) 生物膜工艺与间歇性通风.
加强部分化合器Anammox (PNA) 和部分脱合器Anammox (PDA) 进行增强的去除.
评估拟议的低C/N废水处理工艺的除效率和氧化排放因子.

主要方法:

一个三阶段的AO生物膜反应器经过间歇性通风运行.
进行了低化学氧需求 (COD) 和总无机 (TIN) 的市政废水处理.
水力保留时间 (HRT) 维持在8.0小时;分析了微生物群落.

主要成果:

该工艺实现了TIN去除效率为83.3%,将TIN从58.9 mg/L减少到10.6 mg/L.
PNA和PDA对TIN的去除有显著的贡献 (分别为35.1%和52.1%) ,酸盐的积累最小.
氧化排放量很低 (0.21%的去除的TIN),并且Candidatus Brocadia (Anammox细菌) 富含了部分抑制的酸盐氧化细菌 (NOB).

结论:

间歇性通风的三级AO生物膜工艺有效地通过PNA和PDA增强了通过PNA和PDA去除的过程.
该系统表现出高效率和低温室气体排放,使其适用于低C/N废水处理.
间歇性空气和Anammox细菌高效的化物利用有助于过程稳定性和NOB抑制.

关键词:

亚纳姆莫克斯 (Anammox) 是一个生物膜是一种生物膜.间歇性通风间歇性通风间歇性通风部分脱联接器Anammox 部分脱联接器部分化合器Anammox 部分化合器

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