Industrial Waste Carbon Sources for Biological Denitrification

Monteith, Hugh; Bridle, T. R.; Sutton, Paul M.

doi:10.1016/b978-1-4832-8438-5.50014-5

Cited by 33 publications

(22 citation statements)

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“…This may allow denitrification to be enhanced, while at the same time reducing the amount of industrial waste requiring treatment [7]. Monteith et al [6] tested several industrial wastes as organic carbon sources; they found that some organic wastes, such as formaldehyde and dextrose wastes, were less efficiently degraded than distillery oils or brewery wort. Tsonis [9] investigated the possibility of using an olive oil mill wastewater as a non-nitrogenous external carbon source in the second anoxic stage modified Bardenpho system for nutrient removal; he found that the addition of this waste is acceptable only up to a certain amount due to additional colour problems in the treated effluents.…”

Section: Introductionmentioning

confidence: 99%

Titration biosensors for the estimation of the biochemical nitrate demand of municipal and industrial wastes

Onnis¹,

Carucci²,

Cappai³

2005

J IND MICROBIOL BIOTECHNOL

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An anoxic titrimetric test was investigated for measuring denitrification potential of different wastewaters, both municipal and industrial, and to quantify the denitrifying activity in an activated sludge system. The method measures the amount of acid that is required to maintain the pH set-point value in a batch denitrification experiment, and it was performed using a DENICON (denitrification controller) biosensor. The amount of acid is proportional to the nitrate used to oxidise the biodegradable chemical oxygen demand present in the wastewater, while the acid consumption rate is used to derive the denitrifying activity. The wastewaters tested were a municipal wastewater (MW), an industrial-municipal wastewater (MIW; 70% and 30%, respectively), and four industrial wastewaters drawn from an ice-cream factory (IW1), a beet-sugar factory (IW2), a brewery (IW3), and a tuna cannery industry (IW4). Good correlation between titration data and analyses was found.

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Section: Introductionmentioning

confidence: 99%

Titration biosensors for the estimation of the biochemical nitrate demand of municipal and industrial wastes

Onnis¹,

Carucci²,

Cappai³

2005

J IND MICROBIOL BIOTECHNOL

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“…By contrast, some studies employed high-strength liquid organic wastes as carbon sources, including brewery wastes, whey, yeast, other bio-industry wastes and silage effluents (Monteith et al 1980;Skrinde and Bhagat 1982). In some selected cases, they achieved denitrification rates comparable to the processes using methanol.…”

Section: Introductionmentioning

confidence: 97%

Biological nitrate removal using sugar-industry wastes

Ueda

Shinogi

Yamaoka

2006

Paddy Water Environ

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Biological denitrification experiment was conducted using sugar-industry wastes, namely final molasses as a carbon source and bagasse charcoal pellets as supporting media for denitrifying bacteria. We employed an upflow fixed-bed reactor filled with the pellets and biofilm attached onto them. This was fed with potassium-nitrate and dilutemolasses solutions. Total nitrogen removals of more than 85% were achieved at influent carbon-nitrogen (C/N) ratios between 2 and 4, and hydraulic residence times of more than 0.8 h. This demonstrated that final molasses could be used as an alternative carbon source. On the other hand, final molasses also contained some organic/ammonium nitrogen and refractory organic matter including colors, both of which were difficult to remove with the reactor. Accordingly, at higher C/N ratios, these substances caused major increases in effluent total-nitrogen and organic-carbon concentrations. Therefore, an optimum C/N ratio was found to be around 2.

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“…The TN removal efficiency depends on the COD/N ratio because conventional heterotrophic denitrification is restricted to pathways using organic carbon as an energy source. It is generally reported that, for most readily available organic carbon sources, a COD/N ratio from 3.0 to 6.0 enables stable denitrification [3][4][5][6][7]. For this reason, addition of an external carbon source is required for wastewater with a low COD/N ratio.…”

Section: Introductionmentioning

confidence: 99%

Application of spent sulfidic caustics for autotrophic denitrification in a MLE process and their microbial characteristics by fluorescence in situ hybridization

Park

et al. 2008

Korean J. Chem. Eng.

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Spent sulfidic caustics (SSCs) produced from petrochemical plants contain a high concentration of hydrogen sulfide and alkalinity, and some organic matter. Most of the SSCs are incinerated with the auxiliary fuel causing secondary pollution problems. The reuse of this waste is becoming increasingly important in terms of economical and environmental viewpoints. To denitrify wastewater with a low COD/N ratio, additional carbon sources are required. Therefore, autotrophic denitrification has received increasing attention. In this research, SSCs were injected as electron donors for sulfur-based autotrophic denitrification in a modified Ludzack-Ettinger (MLE) process. According to the variations in the SSCs dosage, the efficiencies of COD, nitrification and TN removal were evaluated. Heterotrophic denitrification by organic matter and autotrophic denitrification by SSCs were also investigated. As a result, adequate injection of SSCs showed stable autotrophic denitrification. To investigate some of the harmful effects of SSCs, fluorescence in situ hybridization (FISH) for nitrifying bacteria and Thiobacillus denitrificans was performed. Ammoniaoxidizing bacteria (AOB) and Nitrospira genus showed a similar pattern. Excessive injection of SSCs made nitrifying bacteria decrease and nitrification failure occur because of the high pH caused by the SSCs. The distribution of T. denitrificans was relatively uniform as SSCs were injected. This result means that T. denitrificans are available at high pH.

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Industrial Waste Carbon Sources for Biological Denitrification

Cited by 33 publications

References 1 publication

Titration biosensors for the estimation of the biochemical nitrate demand of municipal and industrial wastes

Titration biosensors for the estimation of the biochemical nitrate demand of municipal and industrial wastes

Biological nitrate removal using sugar-industry wastes

Application of spent sulfidic caustics for autotrophic denitrification in a MLE process and their microbial characteristics by fluorescence in situ hybridization

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