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从真正的城市废水和成熟的垃圾填埋场液中有效地去除,使用部分化与同时进行的anammox和部分脱过程

Lulu Xiong¹, Xiyao Li¹, Jianwei Li¹

¹National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.

|January 10, 2024

概括

这项研究表明,使用部分化和无氧氨氧化同时处理市政废水和垃圾填埋液的有效方法. 综合工艺实现了高去除效率,为废水处理提供了可持续的解决方案.

科学领域:

环境工程环境工程
废水处理废水处理
微生物生态学微生物生态学

背景情况:

无氧氨氧化 (anammox) 对于城市废水处理至关重要.
同时处理市政废水与成熟的垃圾填埋污水是重大研究挑战.
从综合废水流中有效地去除,需要先进的处理策略.

研究的目的:

为了研究城市废水和成熟的垃圾填埋场液的联合处理,使用部分化-同时的anamox和部分脱 (PN-SAPD) 工艺.
评估PN-SAPD系统中的去除效率和微生物群体动态.
评估特定功能基因和酶在anammox和部分脱反应中的作用.

主要方法:

市政废水在测序批量反应堆 (SBR) 中进行了部分化,以达到高化积累.
来自SBR的废水与成熟的填埋场液混合,并在上游无氧污泥毯 (UASB) 反应堆中处理,以同时进行anammox和部分脱.
使用定量PCR (qPCR),16S安普利康测序和宏基因组测序来分析微生物群落和功能基因.

主要成果:

在受控的低溶解氧和有氧时间下,SBR实现了高化物积累率 (93.0 ± 3.8%).
在短的液压反应时间 (3.8小时) 中,UASB系统证明了显著的去除 (78.8±2.1%) 具有高的anammox贡献 (89.4±6.0%).
整体PN-SAPD系统实现了95.2 ± 2.2%的去除,导致低废水总无机 (TIN) 为3.4 ± 1.5 mg/L.
qPCR和宏基因组分析证实了关键功能基因 (hzsA(B),hdh,hao,narGHI) 的高丰度和活性,与阿纳莫克斯和部分脱有关,与Ca. 布罗卡迪亚被确定为多路径代谢中的关键参与者.

结论:

修改后的PN-SAPD工艺对于共同处理市政废水和成熟的垃圾填埋污水非常有效,可以实现大量的去除.
该研究强调了特定微生物群落的重要性,特别是Ca. 布罗卡迪亚,及其相关的功能基因在驱动高效的去除过程中发挥作用.
这种综合方法为管理市政废水处理厂中复杂的废水流提供了有希望的可持续解决方案.

关键词:

亚纳姆莫克斯 (Anammox) 是一个生物去除生物去除垃圾填埋场的洗液是如何处理的市政废水的城市废水.的新陈代谢的新陈代谢部分化部分化

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