Upgrading the efficiency of an external nitrification BNR system – The modified Dephanox process

Kapagiannidis, Anastasios G.; Zafiriadis, I.; Aivasidis, A.

doi:10.1016/j.cej.2011.09.080

Cited by 26 publications

(5 citation statements)

References 49 publications

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“…The DEPHANOX (ANOXic DEPHosphation) system is an example of practical realisation of nitrification separated on biofilter in a flow system [21][22][23]. This system reduces general phosphorus by 71% with 7,8 mgP•gsmo -1 •d -1 of its intake, whereas the efficiency of nitrate nitrogen reduction reached about 60% with 30 mgNO 3 -N•gsmo -1 •d -1 speed of the process.…”

mentioning

confidence: 99%

Nitrogen and Phosphorus Removal from Sewage in Biofilter – Activated Sludge Combined Systems

Wałęga¹,

Chmielowski²,

Młyński³

2019

Pol. J. Environ. Stud.

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According to the requirements of the current Minister of Environment Regulation from 18 November 2014, not all sewage treatment plants achieve the required level of pollution reduction [1]. The only way to adjust these objects to current standards is their complex modernisation. Treatment plant modernisation means liquidation of biofilters. Normally a designer does not see the possibility of including biofilters into a biological dephosphatation scheme coupled with nitrification and denitrification. The possibility of integrating biofilters and activated sludge to intensify biogenic compound removal from the sewage occurred when bacteria capable of denitrifying dephosphatation were identified [2, 3]. Bacteria that accumulate phosphates may be divided into two groups: bacteria that accumulate phosphates from sewage with oxygen as an electron acceptor and with nitrites as electron

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mentioning

confidence: 99%

Nitrogen and Phosphorus Removal from Sewage in Biofilter – Activated Sludge Combined Systems

Wałęga¹,

Chmielowski²,

Młyński³

2019

Pol. J. Environ. Stud.

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“…It has been reported that different metabolic process of microorganisms in EBPR is related to different enzyme catalytic system; the exopolyphosphatase (PPX) and polyphosphate kinase (PPK) are identified to be important enzymes related to the process of P removal in EBPR [3]. For visualization of the specific microbe and characterization of microbial population involved in the P removal processes, the technology of fluorescent in situ hybridization (FISH) has been extensively used [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Long-term effect of Cu (II) on the phosphorous removal performance in enhanced biological phosphorous removal systems

Jiang

et al. 2015

Chemical Engineering Journal

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“…Although the COD concentration in the effluent from anoxic tank in the BNR-IC process proposed in this study increased slightly, the residual COD can mostly be biodegraded in the post-aeration tank (contributing to 9.6% of total COD removal efficiency found here). Generally, the post-aeration tank was often used as the key equipment for further nutrients removal and discharge to meet standard (Kapagiannidis et al 2011;Smidt, Parravicini 2009;zafiriadis et al 2012), thus resulting in enhancement of water quality of effluent before discharge to water bodies. In this BNR-IC system proposed here, NH 4 -N removal mainly occurred in the aerobic tank, accounting for 95.4% of total NH 4 -N removal efficiency, while TN and NO 3 -N were mostly removed in the anoxic phase, as shown in Table 2, Figure 4 and Figure 5, respectively, indicating that good nitrification and denitrifying nitrogen and phosphorus removal simultaneously performances were present in their respective tanks.…”

Section: Performance Of Bnr-ic Process In Each Stagementioning

confidence: 99%

A Novel Process for Nutrients Removal and Phosphorus Recovery From Domestic Wastewater by Combining BNR With Induced Crystallization

Lü

2014

Journal of Environmental Engineering and Landscape Management

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Abstract. Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and elevation of the introduced bacterial strains throughout the experiment. Keywords: TNT, bioaugmentation, biostimulation, phytoremediation, microbial community.

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Upgrading the efficiency of an external nitrification BNR system – The modified Dephanox process

Cited by 26 publications

References 49 publications

Nitrogen and Phosphorus Removal from Sewage in Biofilter – Activated Sludge Combined Systems

Nitrogen and Phosphorus Removal from Sewage in Biofilter – Activated Sludge Combined Systems

Long-term effect of Cu (II) on the phosphorous removal performance in enhanced biological phosphorous removal systems

A Novel Process for Nutrients Removal and Phosphorus Recovery From Domestic Wastewater by Combining BNR With Induced Crystallization

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