Seasonal Changes in Nitrogen, Phosphorus, Bod and Cod Removal in Bystre Wastewater Treatment Plant

Skoczko, Iwona; Struk-Sokołowska, Joanna; Ofman, Piotr

doi:10.12911/22998993/74361

Cited by 24 publications

(11 citation statements)

References 1 publication

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“…Furthermore, the simulated TN concentration showed the seasonal trends of the measured values. Concentrations of the nitrogen species in streams were generally higher during winter seasons, owing to the efficiency of biological nitrogen removal from WWTPs being lower at lower temperatures [48]. TN simulation results showed a background concentration of about 1 mg/L, partly reflecting the frequent nitrate contamination of the groundwater in Asian agricultural areas [49,50].…”

Section: Model Performancementioning

confidence: 99%

HSPF-Based Assessment of Inland Nutrient Source Control Strategies to Reduce Algal Blooms in Streams in Response to Future Climate Changes

et al. 2021

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The HSPF model was modified to improve the growth-temperature formulation of phytoplankton and used to simulate Chl-a concentrations at the outlet of the Seom River watershed in Korea from 2025 to 2050 under four climate change scenarios: RCP 2.6, RCP 4.5, RCP 6.0, and RCP 8.5. The mean and median Chl-a concentrations increased by 5–10% and 23–29%, respectively, and the number of algal outbreak cases per year (defined as a day with Chl-a concentration ≥100 µg/L) decreased by 31–88% relative to the current values (2011–2015). Among the climate change scenarios, RCP 2.6 (stringent) showed the largest number of algal outbreak cases, mainly because of the largest yearly variability of precipitation and TP load. For each climate change scenario, three nutrient load reduction scenarios were in the HSPF simulation, and their efficiencies in reducing algal blooms were determined. Nonpoint source reduction in TP and TN from urban land, agricultural land, and grassland by 50% (S1) and controlling the effluent TP concentration of wastewater treatment plants (WWTPs) to 0.1 mg/L (S2) decreased algal outbreaks by 20–58% and 44–100%, respectively. The combination of effluent TP control of WWTPs during summer and S1 was the most effective management scenario; it could almost completely prevent algal outbreaks. This study demonstrates the cost effectiveness of using a season-based pollutant management strategy for controlling algal blooms.

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Section: Model Performancementioning

confidence: 99%

HSPF-Based Assessment of Inland Nutrient Source Control Strategies to Reduce Algal Blooms in Streams in Response to Future Climate Changes

et al. 2021

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“…Compared with the industrial odor, the odor of domestic wastewater during treatment in WWTPs is complex and variable, due to its wide sources and various biochemical reactions. As known, odorous emissions from WWTPs are made up of inorganic compound (hydrogen sulfide, ammonia) and organic compound (sulfur organic compounds, nitrogenous organic compounds, alcohols, aldehydes, terpenes, carbonyls, aromatics, fatty acids, alkanes, alkenes, ketones, esters and halogenated hydrocarbons) [4][5][6][7][8][9][10][11][12]. Among them, volatile sulfur organic compounds (VSOCs) are principal odorants except hydrogen sulfide, and non-sulfur volatile organic compounds (VOCs) are increasingly important to contribute to odorous emission [13].…”

Section: Introductionmentioning

confidence: 99%

Limitations of GC-QTOF-MS Technique in Identification of Odorous Compounds from Wastewater: The Application of GC-IMS as Supplement for Odor Profiling

et al. 2021

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Odorous emissions from wastewater treatment plants (WWTPs) cause negative impacts on the surrounding areas and possible health risks on nearby residents. However, the efficient and reliable identification of WWTPs’ odorants is still challenging. In this study, odorous volatile organic compounds (VOCs) from domestic wastewater at different processing units were profiled and identified using gas chromatography-ion mobility spectrometry (GC-IMS) and gas chromatography quadrupole-time-of-flight mass spectrometry (GC-QTOF-MS). The GC-QTOF-MS results confirmed the odor contribution of sulfur organic compounds in wastewater before primary sedimentation and ruled out the significance of most of the hydrocarbons in wastewater odor. The problems in odorous compounds analysis using GC-QTOF-MS were discussed. GC-IMS was developed for visualized analysis on composition characteristics of odorants. Varied volatile compounds were detected by GC-IMS, mainly oxygen-containing VOCs including alcohols, fatty acids, aldehydes and ketones with low odor threshold values. The fingerprint plot of IMS spectra showed the variation in VOCs’ composition, indicating the changes of wastewater quality during treatment process. The GC-IMS technique may provide an efficient profiling method for the changes of inlet water and performance of treatment process at WWTPs.

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“…At this point, it should be stressed that organic pollutants in the form of aliphatic and aromatic hydrocarbons Skoczko 2018, Matejczyk et al 2020] and inorganic pollutants may be present in sewage sludge, among which mainly metallic elements, including heavy metals, are predominant. In addition, the amounts of these pollutants may depend not only on the chemical characteristics of wastewater flowing into the treatment plant, but also on seasonal changes in the composition of raw wastewater [Skoczko et al 2017]. Nevertheless, in light of the Polish legal regulations, the content of heavy metals in sewage sludge is of key importance, because, among other things, on this basis an analysis of the possibility of their further use is made [Długosz and Gawdzik, 2014].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Heavy Metal Fraction Content in Sewage Sludge from Selected Wastewater Treatment Plants

Wojciula¹,

Boruszko²,

Pajewska³

2021

J. Ecol. Eng.

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Assessment of the assimilability of elements contained in sewage sludge can only be carried out if their fractions, by means of which the chemical form of the element can be identified, are determined. The total content of heavy metals only makes it possible to determine whether the sludge meets the legal requirements and can be used, inter alia, for reclamation, in agriculture or for the adaptation of land to specific needs that result from waste management plans. Therefore, when planning the agricultural use of sewage sludge, attention should be paid above all to the heavy metal fractions contained in it. This is due to the fact that plants do not assimilate every form of element to the same extent. The research and analysis carried out indicate that the metals were most closely related to fractions IV and III, for example they formed connections with silicates, as well as sulphides and organic matter. The metal forms available to plants occupied a small percentage of the total heavy metal content. It was noted that with the metastable fraction of lead increased along with population equivalent. Furthermore, the population equivalent value did not affect the distribution of individual heavy metal fractions in the sludge.

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Seasonal Changes in Nitrogen, Phosphorus, Bod and Cod Removal in Bystre Wastewater Treatment Plant

Cited by 24 publications

References 1 publication

HSPF-Based Assessment of Inland Nutrient Source Control Strategies to Reduce Algal Blooms in Streams in Response to Future Climate Changes

HSPF-Based Assessment of Inland Nutrient Source Control Strategies to Reduce Algal Blooms in Streams in Response to Future Climate Changes

Limitations of GC-QTOF-MS Technique in Identification of Odorous Compounds from Wastewater: The Application of GC-IMS as Supplement for Odor Profiling

Analysis of Heavy Metal Fraction Content in Sewage Sludge from Selected Wastewater Treatment Plants

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