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首页> 外文期刊>Bioprocess and Biosystems Engineering >Proof of concept and improvement of a triple chamber biosystem coupling anaerobic digestion, nitrification and mixotrophic endogenous denitrification for organic matter, nitrogen and sulfide removal from domestic sewage
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Proof of concept and improvement of a triple chamber biosystem coupling anaerobic digestion, nitrification and mixotrophic endogenous denitrification for organic matter, nitrogen and sulfide removal from domestic sewage

机译：三腔生物系统结合厌氧消化，硝化和混合营养内源性反硝化以去除生活污水中的有机物，氮和硫化物的概念证明和改进

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In this study, two versions of a triple chamber biosystem, coupling anaerobic digestion, nitrification and mixotrophic endogenous denitrification (ADNMED), were evaluated and compared. They were designed to maximize the use of endogenous electron donors produced by anaerobic digestion (residual organic matter and sulfide) to abate a portion of the influent nitrogen contained in domestic sewage while removing the inconvenience of effluent sulfide. The first version was able to abate 40% of the influent nitrogen but presented operational and hydrodynamic problems, which resulted in sulfide emissions. A modified second version was proposed, improving the first approach and achieving a nitrogen abatement of more than 60% and a sulfide-free effluent, complying with local emission standards. The results demonstrated that endogenous electron donors produced by anaerobic digestion should not be neglected, and a significant cost reduction in nitrogen removal from domestic sewage could be achieved by exploiting their potential with novel reactor configurations.
机译：在这项研究中，评估和比较了三室生物系统的两个版本，即厌氧消化，硝化和混合营养内源性反硝化（ADNMED）。它们的设计旨在最大程度地利用厌氧消化产生的内源电子供体（残留的有机物和硫化物），以减少生活污水中所含一部分流入的氮，同时消除流出的硫化物带来的不便。第一个版本能够减少40％的进水氮，但存在操作和流体动力学问题，从而导致硫化物排放。提出了修改后的第二个版本，改进了第一种方法，并实现了符合当地排放标准的氮削减量超过60％和无硫化物的废水。结果表明，不应忽略厌氧消化产生的内源电子供体，通过利用新型反应器配置的潜力，可以显着降低从生活污水中脱氮的成本。

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