Effect of nitrate recycling ratio on simultaneous biological nutrient removal in a novel anaerobic/anoxic/oxic (A2/O)-biological aerated filter (BAF) system

Chen, Yongzhi; Cui, Peng; Wang, Jianhua; Ye, Liu; Zhang, Liangchang; Peng, Yongzhen

doi:10.1016/j.biortech.2011.02.114

Cited by 120 publications

(50 citation statements)

References 23 publications

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“…A number of recent studies have reported organic carbon removal of between 87 and 99%; phosphate removal of between 90 and 100% and nitrogen removal between 62 and 97% (Nguyen et al, 2013;Luo et al, 2014). Interestingly, the studies that reported very high (>95%) P-removal, reported lower rates of N removal (Chen et al, 2011). Even with more advanced technologies, simultaneously delivering high levels of N and P removal (or full denitrification in sequence) remains complex and difficult.…”

Section: Application Of Algal P Systemsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

406

204

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The removal of phosphorus (P) from domestic wastewater is primarily to reduce the potential for eutrophication in receiving waters, and is mandated and common in many countries. However, most P-removal technologies have been developed for use at larger wastewater treatment plants that have economies-of-scale, rigorous monitoring, and in-house operating expertise. Smaller treatment plants often do not have these luxuries, which is problematic because there is concern that P releases from small treatment systems may have greater environmental impact than previously believed. Here P-removal technologies are reviewed with the goal of determining which treatment options are amenable to small-scale applications. Significant progress has been made in developing some technologies for small-scale application, namely sorptive media. However, as this review shows, there is a shortage of treatment technologies for P-removal at smaller scales, particularly sustainable and reliable options that demand minimal operating and maintenance expertise or are suited to northern latitudes. In view of emerging regulatory pressure, investment should be made in developing new or adapting existing P-removal technologies, specifically for implementation at small-scale treatment works.

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Section: Application Of Algal P Systemsmentioning

confidence: 99%

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Bunce

Ndam

Ofiţeru

et al. 2018

Front. Environ. Sci.

406

204

View full text Add to dashboard Cite

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“…The results showed that a large proportion of COD (approximately 81%) was utilized in the anaerobic zone of the A 2 /O process by PAOs and 10 % of COD was consumed in the anoxic compartment by denitrifiers. The amount of COD changed slightly in the aerobic zone and BAF process [7]. Among the percentage of COD removal, more than 80% COD was removed in the anaeobic phase, while 28 ≈ 46 % COD was utilized in the anoxic zone, with very low COD available in the aerobic phase.…”

Section: Organic Removal Efficiencymentioning

confidence: 94%

Effect of Organic Loading Rate on Simultaneous Removal of Nitrogen and Phosphorus From Aquatic Product Processing Wastewater by Advanced A2/O – Baf System

Nhu¹

2018

JST

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Combined system of Anaerobic/Anoxic/Oxic reactor with Biological Aerated Filter (A 2 /O -BAF) is used to enhance simultaneous removal of nitrogen and phosphorus on aquatic product processing wastewater treatment. A 2 /O reactor was operated with short solids retention time employed mainly for removal of organic matter and phosphorus together with denitrification and BAF with long solids retention time employed mainly for nitrification. The model of combined A 2 /O -BAF system made from polyacrylic with the capacity of 49.5 liters was operated with hydraulic retention time decreased from 19.2 to 9.6 hours and organic loading rates increased from 0.50 to 1.0 kgCOD/m 3 /day. The results showed that the model not only treated organic matter well but also removed nearly completely both nitrogen and phosphorus. For loading rate of 0.75 kgCOD/m 3 /day, treatment efficiencies of COD, NH 4 + -N, TN, TP of the model were the highest as 91. 02, 96.82, 84.08, 86.66 %, respectively and output values of these parameters were within the limits of QCVN 11:2008/BTNMT, column A.

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“…A novel system integrating anaerobic/anoxic/oxic and biological aerated filter (A 2 /O -BAF) has been recently developed [4], which can saves carbon source and oxygen consumption with low sludge production and high denitrifying phosphorus removal efficiency [5].…”

Section: Introductionmentioning

confidence: 99%

Organic substrate transformation and sludge characteristics in the integrated anaerobic anoxic oxic–biological contact oxidation (A2/O–BCO) system treating wastewater with low carbon/nitrogen ratio

Zhang

Wang

Peng

et al. 2016

Chemical Engineering Journal

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Effect of nitrate recycling ratio on simultaneous biological nutrient removal in a novel anaerobic/anoxic/oxic (A2/O)-biological aerated filter (BAF) system

Cited by 120 publications

References 23 publications

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

A Review of Phosphorus Removal Technologies and Their Applicability to Small-Scale Domestic Wastewater Treatment Systems

Effect of Organic Loading Rate on Simultaneous Removal of Nitrogen and Phosphorus From Aquatic Product Processing Wastewater by Advanced A2/O – Baf System

Organic substrate transformation and sludge characteristics in the integrated anaerobic anoxic oxic–biological contact oxidation (A2/O–BCO) system treating wastewater with low carbon/nitrogen ratio

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