División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), Camino a la Presa San José 2055, Lomas 4ª Sección, San Luis Potosí, SLP 78216, Mexico.
División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), Camino a la Presa San José 2055, Lomas 4ª Sección, San Luis Potosí, SLP 78216, Mexico.
Bioresour Technol. 2017 Aug;238:528-533. doi: 10.1016/j.biortech.2017.04.087. Epub 2017 Apr 25.
A novel reactor configuration for the enrichment of anammox bacteria from marine sediments was developed. Marine sediments were successfully kept inside the bioreactors during the enrichment process by strategically installing traps at different depths to prevent the wash-out of sediments. Three up-flow anaerobic sediment trapped (UAST) reactors were set up (α, β and ω supplied with 50, 150 and 300mgCa/L, respectively). Nitrogen removal rates (NRR) of up to 3.5gN/L-d and removal efficiencies of >95% were reached. Calcium enhanced biomass production as evidenced by increased volatile suspended solids and extracellular polymeric substances. After the long-term operation, dominant families detected were Rhodobacteracea, Flavobacteracea, and Alteromonadacea, while the main anammox genera detected in the three reactors were Candidatus Kuenenia and Candidatus Anammoximicrobium. The UAST reactor is proposed as suitable technology for the enrichment of anammox bacteria applicable for the treatment of saline industrial wastewaters with high nitrogen content.
开发了一种新型的用于从海洋沉积物中富集厌氧氨氧化菌的反应器。通过在不同深度安装陷阱，成功地将海洋沉积物保留在生物反应器内，防止了沉积物的冲洗。设置了三个上流式厌氧沉积物截留（UAST）反应器（α、β和ω分别以 50、150 和 300mgCa/L 进行供应）。达到了高达 3.5gN/L-d 的氮去除率（NRR）和>95%的去除效率。钙增强了生物量的产生，表现为挥发性悬浮固体和胞外聚合物物质的增加。经过长期运行，检测到的优势家族是红杆菌科、黄杆菌科和交替单胞菌科，而在三个反应器中检测到的主要厌氧氨氧化菌是卡氏菌属和厌氧氨氧化菌属。UAST 反应器被提议为适用于处理高氮含量的含盐工业废水的厌氧氨氧化菌富集的合适技术。
