Integrated fixed-biofilm activated sludge reactor as a powerful tool to enrich anammox biofilm and granular sludge
作者： Liang Zhang , Miaomiao Liu , Shujun Zhang , Yandong Yang , Yongzhen Peng
DOI: 10.1016/J.CHEMOSPHERE.2015.02.001
关键词: Activated sludge 、 Ammonium 、 Nitrogen 、 Environmental engineering 、 Biofilm 、 Chemistry 、 Wastewater 、 Bioreactor 、 Pulp and paper industry 、 Anammox 、 Autotroph
摘要: Abstract A pilot-scale activated sludge bioreactor was filled with immobile carrier to treat high ammonium wastewater. Autotrophic nitrogen elimination occurred rapidly by inoculating nitrifying and anammox biofilm. As the loading rate increased, removal of 1.2 kg N m −3 d −1 obtained efficiency 80%. Activated diameter distribution profiles presented two peak values, indicating simultaneous existence flocculent granular sludge. Red observed in reactor. Furthermore, results morphological molecular analysis showed that characteristics were similar biofilm, while much different from It assumed formed through continuous growth detachment The mechanism formation discussed procedure model proposed. According experimental results, integrated fixed-biofilm reactor provided an alternative based on anammox.
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