CANON process for nitrogen removal from effluents of municipal sewage treatment plants

Peng, Xinhong; Wu, Libo; H, Yu; Ai, Lina; Fu, Li

doi:10.1007/s12209-013-1966-z

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…These results agree with previous studies which assumed that the lack of balance between ammonium amount and nitrate formed in control bioreactors and electro‐bioreactors could be due to partial nitrification, denitrification in aerobic conditions (Klimiuk & Kulikowska, ). It has also been reported that NH 4 + ‐N removal in a single, aerated reactor is caused by complete autotrophic nitrogen removal over nitrite, known as the CANON process (Peng, Wu, Yu, Ai, & Fu, ). The reported results here show that electro‐bioreactors operated at low HRT of 6, 10, and 16 hr enhanced reactor performance in removing both PO 4 3− –P and NH 4 + –N, with very low measured concentrations in the effluent which did not exceed ≃0.01 and 0.05 mg L −1 , respectively.…”

Section: Discussionmentioning

confidence: 99%

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Effect of hydraulic retention time on microbial community structure in wastewater treatment electro‐bioreactors

2018

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The impact of hydraulic retention time (HRT) on the performance and microbial community structure of control and electro‐bioreactors was investigated. Control bioreactors and electro‐bioreactors were operated at HRT ranging between 6 and 75 hr. The total bacterial counts in addition to the removal efficiency of NH 4 +–N, sCOD, and PO 4 3−–P was assessed in all the reactors tested. In addition, Illumina sequencing was performed to determine the microbial communities that developed in these reactors under each HRT condition. Phylogenetic analysis showed that Proteobacteria and Bacteroidetes were the dominant phyla in those reactors. In addition, Nitrospira sp. and Pseudomonas sp. were found to be present in electro‐bioreactors with higher relative abundance than in control bioreactors. The results presented here are the first to determine what different microbial communities in wastewater electro‐bioreactors due to the application of an electric current under different HRTs.

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Section: Discussionmentioning

confidence: 99%

“…It has also been reported that NH 4 + -N removal in a single, aerated reactor is caused by complete autotrophic nitrogen removal over nitrite, known as the CANON process (Peng, Wu, Yu, Ai, & Fu, 2013).…”

Section: Reactor Performance and Physiochemical Parameters Under DImentioning

confidence: 99%

Effect of hydraulic retention time on microbial community structure in wastewater treatment electro‐bioreactors

2018

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“…Anaerobic ammonia oxidation (anammox) is one of the most economic and efficient process for nitrogen removal autotrophically (Kuenen, 2008). It has been successfully used for treating multiple wastewaters, such as reject water (Li et al, 2011), digested food processing effluents (Abma et al, 2010) and low-strength wastewater like sewage (Peng et al, 2013). This process, combined to partial nitrification, requires very little aeration and no external organic carbon (Siegrist et al, 2008), and so it is estimated that such process, compared with the conventional nitrification-denitrification system, could save 63% energy and 100% chemical cost (Kuai and Verstraete, 1998).…”

Section: Introductionmentioning

confidence: 99%