Organic nitrogen transformations in a 4-stage Bardenpho nitrogen removal plant and bioavailability/biodegradability of effluent DON

Sattayatewa, Chakkrid; Pagilla, Krishna; Pitt, Paul; Selock, Kevin; Bruton, Theresa

doi:10.1016/j.watres.2009.07.030

Cited by 89 publications

(63 citation statements)

References 26 publications

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“…The contribution of individual reactions to the rates is also demonstrated in Figure 9. A similar kinetic model has also been applied to determine k i j of Equation 16 for reactions of ferrate(VI) with various compounds. [145,174,178,181,191−195] The kinetics of the oxidation of amines by ferrate as a function of pH is given in Figure 10.…”

Section: Kineticsmentioning

confidence: 99%

Oxidation of nitrogen-containing pollutants by novel ferrate(VI) technology: A review

Sharma

2010

Journal of Environmental Science and Health, Part A

140

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Nitrogen-containing pollutants have been found in surface waters and industrial wastewaters due to their presence in pesticides, dyes, proteins, and humic substances. Treatment of these compounds by conventional oxidants produces disinfection by-products (DBP). Ferrate(VI) (Fe(VI)O(4)(2-), Fe(VI)) is a strong oxidizing agent and produces a non-toxic by-product Fe(III), which acts as a coagulant. Ferrate(VI) is also an efficient disinfectant and can inactivate chlorine resistant microorganisms. A novel ferrate(VI) technology can thus treat a wide range of pollutants and microorganisms in water and wastewater. The aim of this paper is to review the kinetics and products of the oxidation of nitrogen-containing inorganic (ammonia, hydroxylamine, hydrazine, and azide) and organic (amines, amino acids, anilines, sulfonamides, macrolides, and dyes) compounds by ferrate(VI) in order to demonstrate the feasibility of ferrate(VI) treatment of polluted waters of various origins. Several of the compounds can degraded in seconds to minutes by ferrate(VI) with the formation of non-hazardous products. The mechanism of oxidation involves either one-electron or two-electrons processes to yield oxidation products. Future research directions critical for the implementation of the ferrate(VI)-based technology for wastewater and industrial effluents treatment are recommended.

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Section: Kineticsmentioning

confidence: 99%

Oxidation of nitrogen-containing pollutants by novel ferrate(VI) technology: A review

Sharma

2010

Journal of Environmental Science and Health, Part A

140

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“…The current laboratory incubation was to estimate this process under the assumption which the statics analyse in situ is less and the cycling mode proved to be studied by theoretical formula [4]. These incubations suggest that bacterial and photochemical degradation play a critical role in the composition of DON in some suitable conditions [5]. Because the total hydrolysable amino acid (THAA) in situ frequently comprises the largest part of DON in sediments and they are the nutrition sources to heterotrophs [6].…”

Section: Introductionmentioning

confidence: 99%

Restoration and Purification of Dissolved Organic Nitrogen by Bacteria and Phytoremediation in Shallow Eutrophic Lakes Sediments

Yue

2018

E3S Web Conf.

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Abstract. Endogenous organic nitrogen loadings in lake sediments have increased with human activity in recent decades. A 6-month field study from two disparate shallow eutrophic lakes could partly reveal these issues by analysing seasonal variations of biodegradation and phytoremediation in the sediment. This paper describes the relationship between oxidation reduction potential, temperature, microbial activity and phytoremediation in nitrogen cycling by calculation degradative index of dissolved organic nitrogen and amino acid decomposition. The index was being positive in winter and negative in summer while closely positive correlated with biodegradation. Our analysis revealed that rather than anoxic condition, biomass is the primary factor to dissolved organic nitrogen distribution and decomposition. Some major amino acids statistics also confirm the above view. The comparisons of organic nitrogen and amino acid in abundance and seasons in situ provides that demonstrated plants cue important for nitrogen removal by their roots adsorption and immobilization. In conclusion, enhanced microbial activity and phytoremediation with the seasons will reduce the endogenous nitrogen loadings by the coupled mineralization and diagenetic process.

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“…Because of successful of BENR processing, the most important part of the remaining nitrogen within effluent released to the responsive environments is made of dissolved organic nitrogen (DON) (Pagilla et al 2006, Liu et al 2012. Earlier reports revealed that effluent DON is usually bioavailable to algae and also plankton (Pehlivanoglu-Mantas and Sedlak2004, Sattayatewa et al 2009, Simsek et al 2013. Accordingly, DON is actually drawing a greater number of interesting in waste water treatment plants (WWTPs) recently as a result of increasing worries including the revitalizing algal continuing growth of aquatic environments (Pehlivanoglu-Mantas and Sedlak 2004) and also the forming nitrogenous disinfection by-product N-nitrosodimethylamine (Pehlivanoglu-Mantas and Sedlak 2006.…”

Section: Introductionmentioning

confidence: 99%

“…Earlier investigations on wastewater-derived DON focused on two questionable problems; where DON is eliminated or even created in BENR processes and what exactly is the influence of BENR process on DON (Czerwionka et al 2012,Simsek et al 2013, Huo, et al, 2013. Sattayatewa et al (2009) reported that around 28-57% of the effluent DON was bioavailable or biodegradable, Simsek and his colleague (2013) determined biodegradable dissolved organic nitrogen (BDON) and bioavailable dissolved organic nitrogen(ABDON) in activated sludge (AS) and trickling filter (TF)wastewater treatment processes. They recorded that 65%BDON and 63% ABDON had been eliminated in the TF facility and 68%, 56%, respectively within the AS facility.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Fate of Dissolved Organic Nitrogen in the Three Wastewater Treatment Plants, Jordan

Wedyan

Harahsheh²,

Qnaisb³

2016

INT J ENV SCI ED

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This research aimed to assess the composition of total dissolved nitrogen (TDN) species, particularly dissolved organic nitrogen (DON), over the traditional wastewater treatment operations in three biological nutrient removal (BNR) wastewater treatment plants (WWTPs) in Jordan. It had been found that the DON percentage was up to 30% of TDN within the effluent plant;which restricted the plant's ability to eliminate nitrogen to minimal amounts. Effluent DON levels from the three plants varied from 11.7 to 34.8 mg N/L and would not fluctuate substantially, even if there seemed to be a substantial difference inside influent organic nitrogen levels. The main transforming of DON and biodegradable dissolved organic nitrogen (BDON( along the treatment train had been noticed in the aerobic method. More than 70% of effluent DON was consisting of hydrophilic materials, which promote algal growth. The research presented significant information for foreseeable future improving of WWTPs or the choice of DON elimination techniques to satisfy additional challenging nitrogen release limits.Keywords: total dissoloved nitrogen, dissolved organic nitrogen (DON), bioavailable/biodegradable dissolved organic nitrogen, wastewater treatment plants, Jordan.

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Organic nitrogen transformations in a 4-stage Bardenpho nitrogen removal plant and bioavailability/biodegradability of effluent DON

Cited by 89 publications

References 26 publications

Oxidation of nitrogen-containing pollutants by novel ferrate(VI) technology: A review

Oxidation of nitrogen-containing pollutants by novel ferrate(VI) technology: A review

Restoration and Purification of Dissolved Organic Nitrogen by Bacteria and Phytoremediation in Shallow Eutrophic Lakes Sediments

Determination of the Fate of Dissolved Organic Nitrogen in the Three Wastewater Treatment Plants, Jordan

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