Díez-Montero Rubén, De Florio Loredana, González-Viar Marta, Herrero María, Tejero Iñaki
Department of Water and Environmental Sciences and Technologies, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
Department of Water and Environmental Sciences and Technologies, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
Bioresour Technol. 2016 Jun;209:195-204. doi: 10.1016/j.biortech.2016.02.084. Epub 2016 Feb 27.
A novel anaerobic-anoxic sludge blanket reactor, AnoxAn, unifies the non-aerated zones of the biological nutrient removal treatment train in a single upflow reactor, aimed at achieving high compactness and efficiency. The environmental conditions are vertically divided up inside the reactor with the anaerobic zone at the bottom and the anoxic zone above. This contribution presents the performance evaluation of the novel reactor in the removal of organic matter and nutrients from municipal wastewater, coupled with an aerobic hybrid MBR. The overall system achieved total nitrogen and phosphorus removal with average efficiencies of 75% and 89%, respectively. Separate anoxic and anaerobic conditions were maintained in AnoxAn, allowing anaerobic phosphate release and nearly complete anoxic denitrification in the single reactor operating with an HRT of 4.2h. Biomass was retained in the reactor achieving TSS concentration up to 10gL(-1) and partial hydrolysis of influent particulate organic matter.
一种新型厌氧-缺氧污泥床反应器（AnoxAn），将生物脱氮处理流程中的非曝气区整合在一个上流式反应器中，旨在实现高度紧凑性和高效性。反应器内部的环境条件在垂直方向上进行了划分，底部为厌氧区，上方为缺氧区。本文介绍了该新型反应器在去除城市污水中的有机物和营养物质方面的性能评估，同时结合了好氧混合膜生物反应器（MBR）。整个系统实现了总氮和磷的去除，平均效率分别为75%和89%。在AnoxAn中维持了单独的缺氧和厌氧条件，在水力停留时间（HRT）为4.2小时的单个反应器中，实现了厌氧释磷和近乎完全的缺氧反硝化。生物量保留在反应器中，实现了高达10gL(-1)的总悬浮固体（TSS）浓度，并对进水颗粒有机物进行了部分水解。
