Alternating anoxic/oxic condition combined with step-feeding mode for nitrogen removal in granular sequencing batch reactors (GSBRs)

Chen, Fangyuan; Liu, Yong-Qiang; Tay, Joo‐Hwa; Ning, Ping

doi:10.1016/j.seppur.2012.12.015

Cited by 35 publications

(13 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to sustain an active and high concentration of solids for the reaction treatment, some sediment solids should be removed from the system, others recycled back into the aeration basin [3]. One of the drawbacks of ASP is that it requires a large footprint for its treatment tanks [4].…”

Section: Introductionmentioning

confidence: 99%

Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor

Alattabi

Harris

Alkhaddar

et al. 2017

Journal of Water Process Engineering

View full text Add to dashboard Cite

Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor http://researchonline.ljmu.ac.uk/id/eprint/7679/ Article LJMU has developed LJMU Research Online for users to access the research output of the University more effectively. (2017) Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor. Journal of Water Process Engineering, 20. pp. 207-216. ISSN 2214-7144 LJMU Research Online Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor Abstract Sludge settleability is considered one of the main drawbacks of sequencing batch reactors. The aim of this study therefore is to improve sludge settleability by introducing a novel, two-stage settling sequencing batch reactor (TSSBR) separated by an anoxic stage. The performance of the TSSBR was compared with that of a normal operating sequencing batch reactor (NOSBR), operating with the same cycle time. The results show a significant improvement in sludge settleability and nitrogen compound removal rates for the TSSBR over the NOSBR. The average removal efficiencies of NH3-N, NO3-N and NO2-N have been improved from 76.6%,86.4% and 87.3% respectively for the NOSBR to 89.2%, 95.2% and 96% respectively for the TSSBR. In addition, the average SVI30 for the NOSBR has been reduced from 42.04 ml/g to 31.17 ml/g for the TSSBR. After three months of operation, there was an overgrowth of filamentous bacteria inside the NOSBR reactor, while the morphological characteristics of the sludge inside the TSSBR reactor indicated a better and homogenous growth of filamentous bacteria.

show abstract

Section: Introductionmentioning

confidence: 99%

Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor

Alattabi

Harris

Alkhaddar

et al. 2017

Journal of Water Process Engineering

View full text Add to dashboard Cite

show abstract

“…Compared with conventional activated sludge, aerobic granular sludge has a compact and thick structure, diverse microbial species, good settling property, high biomass retention, and great ability to withstand shock loading and unfavorable environmental conditions [3,4]. In addition, the regular morphological structure of aerobic granular sludge can produce simultaneous aerobic, anoxic and anaerobic processes across the granular radius [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity on performance, extracellular polymeric substances and microbial community of an aerobic granular sequencing batch reactor

Wang

Gao

She

et al. 2015

Separation and Purification Technology

135

View full text Add to dashboard Cite

“…Alternating anoxic/oxic condition combined with step-feeding mode (AASF) was proved to be an efficient method for nitrogen removal in granular SBR (GSBR) [102]. Aerobic granular sludge presents several advantages over activated sludge, such as excellent settling properties, high biomass retention and biosorption, and ability to deal with high organic loading rates and to perform diverse biological processes simultaneously, such as COD, N, and P removal [103••, 104-106].…”

Section: Recent Developments In the Application Of Sbrmentioning

confidence: 99%

Sequencing Batch Reactor for Wastewater Treatment: Recent Advances

2015

View full text Add to dashboard Cite

Sequencing batch reactors (SBRs), due to its operational flexibility and excellent process control possibilities, are being extensively used for the treatment of wastewater which nowadays is fast becoming contaminated with newer and more complex pollutants. It is also possible to include different expanding array of configurations and various operational modifications to meet the effluent limits which are also continuously getting upgraded. This article provides basic description of SBR process along with its functional and physical variants that lead to improved the removal of nutrients and emerging contaminants. The significance of selectors and various recent advancements in the application of SBR has been discussed along with the possibilities held by SBR process in the treatment of wastewater of different origins and composition to produce effluent of reusable quality.

show abstract

Alternating anoxic/oxic condition combined with step-feeding mode for nitrogen removal in granular sequencing batch reactors (GSBRs)

Cited by 35 publications

References 29 publications

Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor

Improving sludge settleability by introducing an innovative, two-stage settling sequencing batch reactor

Effects of salinity on performance, extracellular polymeric substances and microbial community of an aerobic granular sequencing batch reactor

Sequencing Batch Reactor for Wastewater Treatment: Recent Advances

Contact Info

Product

Resources

About