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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >A robust and cost-effective integrated process for nitrogen and bio-refractory organics removal from landfill leachate via short-cut nitrification, anaerobic ammonium oxidation in tandem with electrochemical oxidation
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A robust and cost-effective integrated process for nitrogen and bio-refractory organics removal from landfill leachate via short-cut nitrification, anaerobic ammonium oxidation in tandem with electrochemical oxidation

机译：通过短时硝化，厌氧铵氧化与电化学氧化相结合，从垃圾渗滤液中去除氮和生物难熔有机物的强大而经济高效的集成工艺

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A cost-effective process, consisting of a denitrifying upflow anaerobic sludge blanket (UASB), an oxygen limited anoxic/aerobic (A/O) process for short-cut nitrification, and an anaerobic reactor (ANR) for anaerobic ammonia oxidation (anammox), followed by an electrochemical oxidation process with a Ti-based SnO2-Sb2O5 anode, was developed to remove organics and nitrogen in a sewage diluted leachate. The final chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total nitrogen (TN) of 70, 11.3 and 39 (all in mg/L), respectively, were obtained. TN removal in UASB, A/0 and ANR were 24.6%, 49.6% and 16.1%, respectively. According to the water quality and molecular biology analysis, a high degree of anammox besides short-cut nitrification and denitrification occurred in A/0. Counting for 16.1% of TN removal in ANR, at least 43.2-49% of TN was removed via anammox. The anammox bacteria in A/0 and ANR, were in respective titers of (2.5-5.9) x 10(9) and 2.01 x 10(10) copy numbers/(g SS). (C) 2016 Elsevier Ltd. All rights reserved.
机译：具有成本效益的过程，包括反硝化上流厌氧污泥层（UASB），用于短程硝化的限氧缺氧/好氧（A / O）工艺以及用于厌氧氨氧化（anammox）的厌氧反应器（ANR）开发了一种基于Ti的SnO2-Sb2O5阳极的电化学氧化工艺，以去除污水稀释的渗滤液中的有机物和氮。获得的最终化学需氧量（COD），氨氮（NH4 + -N）和总氮（TN）分别为70、11.3和39（均以mg / L计）。 UASB，A / 0和ANR中的TN去除分别为24.6％，49.6％和16.1％。根据水质和分子生物学分析，A / 0除短程硝化和反硝化作用外，还发生了高度的厌氧氨氧化反应。算上ANR中TN的去除率为16.1％，至少有43.2-49％的TN是通过厌氧氨氧化去除的。 A / 0和ANR中的厌氧细菌的滴度分别为（2.5-5.9）x 10（9）和2.01 x 10（10）拷贝数/（g SS）。 （C）2016 Elsevier Ltd.保留所有权利。

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