The impact of biodegradable carbon sources on nutrients removal in post-denitrification biofilm reactors

Mielcarek, Artur; Rodziewicz, Joanna; Janczukowicz, Wojciech; Struk-Sokołowska, Joanna

doi:10.1016/j.scitotenv.2020.137377

Cited by 36 publications

(15 citation statements)

References 51 publications

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“…The use of biofilter filling promotes the formation of complex biofilms, providing favorable conditions for the development of both aerobic and anaerobic microorganisms [15]. A diverse range of parameters (which ensures the presence of various bacterial groups with different needs) creates favorable conditions for wastewater bio-treatment [17]. This, in the context of the present study, enabled the removal of organic pollutants and nitrogen species from airport de-icing wastewater.…”

Section: Resultsmentioning

confidence: 81%

The Kinetics of Pollutant Removal through Biofiltration from Stormwater Containing Airport De-Icing Agents

et al. 2021

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The present study aimed to determine the kinetics of pollutant removal in biofilters with LECA filling (used as a buffer to prevent de-icing agents from being released into the environment with stormwater runoff). It demonstrated a significant effect of temperature and a C/N ratio on the rate of nitrification, denitrification, and organic compound removal. The nitrification rate was the highest (0.32 mg N/L·h) at 25 °C and C/N = 0.5, whereas the lowest (0.18 mg N/L·h) at 0 °C and C/N = 2.5 and 5.0. Though denitrification rate is mainly affected by the available quantity of organic substrate, it actually decreased as the C/N increased and was positively correlated with the temperature levels. Its value was found to be the highest (0.31 mg N/L·h) at 25 °C and C/N = 0.5, and the lowest (0.18 mg N/L·h) at 0 °C and C/N = 5.0. As the C/N increased, so did the content of organic compounds in the treated effluent. The lowest organic removal rates were noted for C/N = 0.5, ranging between 11.20 and 18.42 mg COD/L·h at 0 and 25 °C, respectively. The highest rates, ranging between 27.83 and 59.43 mg COD/L·h, were recorded for C/N = 0.5 at 0 and 25 °C, respectively.

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Section: Resultsmentioning

confidence: 81%

The Kinetics of Pollutant Removal through Biofiltration from Stormwater Containing Airport De-Icing Agents

et al. 2021

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“…Different types of carbon sources have been used for denitrification such as pig manure hydrolysate (J. Yang, Wang, et al, 2019), fumarate (S. Park et al, 2019), starch/PCL blends (Shen et al, 2015), glycerine (Bernat et al, 2015), polycaprolactone (L. Yang, Guo, et al, 2021), corncob, peanut shell, retinervus luffae fructus, wheat straw, cotton stalk, rice straw, rice husk, reed (X.‐L. Yang et al, 2015), citric acid (Mielcarek et al, 2020), food waste‐recycling wastewater (FRW) (Kim et al, 2017), catechol (Moussavi et al, 2015), corn flour (Zhu et al, 2015), food waste fermentation (Qi et al, 2020), sludge alkaline fermentation (Hu et al, 2020), corncob (CC), peanut shell (PS), obsolescent rice (OR) and poly—caprolactone (PCL), poly butylene succinate (PBS), polyvinyl alcohol sodium alginate (PVA‐SA) (Xiong et al, 2020), glycerol (Schroeder et al, 2020), acidogenic liquid from food waste (Zhang et al, 2016), sodium acetate (Qian et al, 2018), kitchen wastewater‐derived carbon source (Zheng et al, 2018), Rice husk (Luo et al, 2018), microalgal biomass (Zhong et al, 2019), citric acid (Kłodowska et al, 2016), corncob and bamboo charcoal filter (Cao et al, 2016), fermented soybean liquids (FSL) (Xue et al, 2018), A. donax (L. Li et al, 2019), immobilized nitrifier pellets (W. Wang et al, 2016), fermentation liquid from food waste (FLFW) (Tang et al, 2018), multi‐walled carbon nanotubes (MWCNT) (Z. Wang et al, 2019), polycaprolactone‐peanut shell (Xiong et al, 2019), methanol and ethanol (Torresi et al, 2017), natural algal powder‐derived (Shao et al, 2019), methanol and acetate (Xu et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Systematic review: External carbon source for biological denitrification for wastewater

Ahmed

Rind

2022

Biotech & Bioengineering

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Nitrogen mitigation is serious environmental issue around the globe. Several methods for wastewater treatment have been introduced, but biological denitrification has been recommended, particularly with addition of the best external carbon source. The key sites of denitrification are wetlands; it can be carried out with different methods. To highlight the aforementioned technology, this paper deals to review the literature to evaluate biological denitrification and to demonstrate cost effective external carbon sources. The results of systematic review disclose the denitrification process and addition of different external carbon sources. The online literature exploration was accomplished using the most well‐known databases, that is, science direct and the web of science database, resulting 625 review articles and 3084 research articles, published in peer‐reviewed journals between 2015 and 2021 were identified in first process. After doing an in‐depth literature survey and exclusion criteria, we started to shape the review from selected review and research articles. A number of studies confirmed that both nitrification and denitrification are significant for biological treatment of wastewater. The studies proved that the carbon source is the main contributor and is a booster for the denitrification. Based on the literature reviewed it is concluded that biological denitrification with addition of external carbon source is cost effective and best option in nitrogen mitigation in a changing world. Our study recommends textile waste for recovery of carbon source.

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“…Lee and Park [37] took sodium acetate as a carbon source when studying the denitrification of wastewater from coking plants and found that the total removal rate of major soluble pollutants in wastewater by biological denitrification system was over 95%. Since citric acid was taken as an external organic substrate in the biofilm reactor, Artur Mielcarek et al [38,39] found that it is a particularly effective source of organic carbon in the denitrification process and could prevent clogging of the biofilm reactor, and the total nitrogen removal rate could reach 98.6%. In addition, Iza-bella Kłodowska et al [40] also clarified that as a promising external carbon source, citric acid could improve the denitrification rate in bioelectrochemical sequencing batch biofilm reactors [40].…”

Section: Conventional External Carbon Sourcementioning

confidence: 99%

“…When the citric acid production wastewater was used as the alternate carbon source in a pilot scale process, Wenhao Liu et al [41] showed that the performance of biological nutrients removal was close to the traditional external carbon source (e.g., sodium acetate) and was profitable (4.6 USD/m 3 ) based on economic analysis. In other articles, authors tried carbohydrates as external carbon sources and compared the result with that of small molecule organics (e.g., methanol, ethanol, and acetic acid), but results concerning which types of carbon source were superior were inconsistent [35,[38][39][40][41][42][43][44]. This inconsistency might be caused by varying properties of effluence and operational condition.…”

Section: Conventional External Carbon Sourcementioning

confidence: 99%

Application of Internal Carbon Source from Sewage Sludge: A Vital Measure to Improve Nitrogen Removal Efficiency of Low C/N Wastewater

Wang

Jiang

Wang

et al. 2021

Water

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Biological nitrogen removal from wastewater is widely used all over the world on account of high efficiency and relatively low cost. However, nitrogen removal efficiency is not optimized when the organic matter has inadequate effect for the lack of a sufficient carbon source in influent. Although addition of an external carbon source (e.g., methanol and acetic acid) could solve the insufficient carbon source problem, it raises the operating cost of wastewater treatment plants (WWTPs). On the other hand, large amounts of sludge are produced during biological sewage treatment, which contain high concentrations of organic matter. This paper reviews the emerging technologies to obtain an internal organic carbon resource from sewage sludge and their application on improving nitrogen removal of low carbon/nitrogen wastewater of WWTPs. These are methods that could solve the insufficient carbon problem and excess sludge crisis simultaneously. The recovery of nitrogen and phosphorus from treated sludge before recycling as an internal carbon source should also be emphasized, and the energy and time consumed to treat sludge should be reduced in practical application.

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The impact of biodegradable carbon sources on nutrients removal in post-denitrification biofilm reactors

Cited by 36 publications

References 51 publications

The Kinetics of Pollutant Removal through Biofiltration from Stormwater Containing Airport De-Icing Agents

The Kinetics of Pollutant Removal through Biofiltration from Stormwater Containing Airport De-Icing Agents

Systematic review: External carbon source for biological denitrification for wastewater

Application of Internal Carbon Source from Sewage Sludge: A Vital Measure to Improve Nitrogen Removal Efficiency of Low C/N Wastewater

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