Nitrification in hybrid reactor with a recycled plastic support material

Brazilian Archives of Biology and Technology

Delmira Beatriz Wolff²  Juan Carlos Ochoa¹  Etienne Paul¹  Rejane Helena Ribeiro Da Costa² 

[1] ,Universidade Federal de Santa Catarina CTC Departamento de Engenharia Sanitária e AmbientalFlorianópolis SC ,Brasil

关键词: Hybrid reactor;    nitrification;    support;    wastewater treatment;   

DOI  :  10.1590/S1516-89132005000400030

来源: SciELO

【 摘 要 】

This work investigated the nitrification in a hybrid moving bed pilot scale reactor, which used a low density recycled plastic support material for biomass growth. The filling rate was 20% of its working volume (22L). The feeding and recirculation outflow was 45L/day. The reactor operated at a temperature of 16ºC, in two phases, according to the sludge retention time (SRT): A phase was 10 days and B phase was 3 days (average values). The applied average volumetric nitrogen and organic loads were 0.16KgTKN/m3.day and 1kgCOD/m³.day, respectively. The results showed an average nitrogen removal of 95% and average COD removal of 89%, in both A and B phases. Nitrogen removal rates were independents of the SRT.

【 授权许可】

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