dr inż. Joanna Majtacz
Zatrudnienie
- Adiunkt w Katedra Inżynierii Sanitarnej
Publikacje
Filtry
wszystkich: 62
Katalog Publikacji
Rok 2022
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Combined partial denitrification/anammox process for nitrogen removal in wastewater treatment
PublikacjaRecently, the combined partial denitrification and anammox (PD/anammox) has received special attention as a viable alternative for N removal using organic matter present in municipal wastewater. In comparison with conventional nitrification-denitrification, PD/anammox provides enormous opportunities to achieve sustainable wastewater treatment due to the lack of dissolved oxygen (DO) demand, a smaller amount of organic carbon (C)...
Rok 2019
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Charakterystyka procesu deamonifikacji oraz rozwój technologii usuwania azotu w oparciu o ten proces
Publikacja.
Rok 2011
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Badania kinetyczne procesu denitryfikacji z dawkowaniem zewnętrznego źródła węgla z postaci produktów odpadowych z produkcji alkoholu
PublikacjaCelem badań była ocena możliwości zastosowania produktów odpadowych z produkcji alkoholu (olejów fuzlowych) jako alternatywnych źródeł węgla w procesie denitryfikacji. Dla porównania, w badaniach wykorzystano również ścieki oczyszczone mechanicznie (bez podczyszczania oraz podczyszczone w procesie koagulacji- flokulacji), jak również dwa konwencjonalne zewnętrzne źródła węgla(kwas octowy i etanol). Badania laboratoryjne obejmowały...
Rok 2023
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Assessment of Sewage Molecular Markers: Linear Alkylbenzenes in Sediments of an Industrialized Region in Peninsular Malaysia
PublikacjaIn this study, the use of linear alkylbenzenes (LABs) was employed to pinpoint the sources of human activity that cause detrimental impacts on the coastal environment and river ecosystems. LABs were detected using GC–MS in sediment samples assembled from Kim Kim River (KKR) and the Port Dickson coast (PDC). To assess the significance of variations in the distribution and concentrations of LABs across the sampling sites, this study...
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Anthropogenic trace metals in Setiu Wetland: Spatial and seasonal distribution and implications for environmental health
PublikacjaThe growing urban wastewater volume poses a major global environmental challenge, especially in developing nations where inadequate treatment and discharge impact clean water availability. This study focused on Setiu Wetland, aiming to analyze seasonal and spatial variations of trace metals in particulate form from anthropogenic and pathogenic sources. Surface water samples were collected from multiple stations, measuring physical...
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An advanced synergy of partial denitrification-anammox for optimizing nitrogen removal from wastewater: A review
PublikacjaAnammox is a widely adopted process for energy-efficient removal of nitrogen from wastewater, but challenges with NOB suppression and NO3− accumulation have led to a deeper investigation of this process. To address these issues, the synergy of partial denitrification and anammox (PD-anammox) has emerged as a promising solution for sustainable nitrogen removal in wastewater. This paper presents a comprehensive review of recent developments...
Rok 2020
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Application of the Anammox Process for Treatment of Liquid Phase Digestate
PublikacjaThe liquid phase of the digestate (LPD) contains a relatively high concentration of nitrogen, with total ammonium nitrogen being the dominant form of nitrogen, as well as other essential nutrients such as phosphorus and potassium. Consequently, it must be treated before it is released into the environment. However, there are no reports of co-purification of LPD in the anammox process in sequencing batch reactor with granular sludge,...
Rok 2017
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ADAPTATION OF THE ACTIVATED SLUDGE TO THE DIGESTATE LIQUORS DURING THE NITRIFICATION AND DENITRIFICATION PROCESSES
PublikacjaThe activated sludge process of the digestate liquors after chemical separation was conducted using a 10 L lab-scale sequencing batch reactor (SBR) and a 0.50 m3 pilotscale SBR independently (with pH control). Due to the relatively high concentration of free ammonia (FA), clear inhibitory effects of the digestate liquors on the nitrifying bacteria were observed. The adaptation of the activated sludge to the toxicity was evaluated...
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A Comparison of the Efficiency of Deammonification under Different Aeration Strategies in a Laboratory-Scale Sequencing Batch Reactor
PublikacjaAn important source of nitrogen load entering the biological part of wastewater treatment plants (WWPTs) is derived from the anaerobic sludge digestion processes. Sludge digestion liquors constitute only 1-2% of the inflow to the plant, but the load of nitrogen directed with them to the main stream may be as high as 10-20% of the total nitrogen load. Therefore, numerous studies have focused on treatment of sludge digestion liquors...
Rok 2013
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Adaptacja osadu do wód poosadowych i zewnętrznego źródła węgla.
PublikacjaSpełnienie obowiązujących obecnie warunków usuwania azotu, możliwe jest w przypadku osią-gnięcia wysokiej efektywności procesu denitryfikacji, która musi być poprzedzona pełną nitryfikacją, wiąże się to z wysokimi kosztami napowietrzania w bioreaktorach. Do stref anoksycznych konieczne jest dostarczenie odpowiedniej ilości węgla organicznego, co wiąże się z koniecznością wspomagania denitryfikacji. Odcieki z beztlenowych procesów...
Rok 2021
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Achieving Efficient and Stable Deammonification at Low Temperatures—Experimental and Modeling Studies
PublikacjaThe short-term effects of temperature on deammonification sludge were evaluated in a laboratory-scale sequencing batch reactor (SBR). Mathematical modeling was used for further evaluations of different intermittent aeration strategies for achieving high and stable deammonification performance at decreasing temperatures. As for the biomass cultivated at high temperatures (e.g., 30 C), a higher temperature dependency (the adjusted...
Rok 2014
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Acclimation of denitrifying activated sludge to a single vs. complex external carbon source during a start-up of sequencing batch reactors treating ammonium-rich anaerobic sludge digester liquors
PublikacjaIn this study, denitrification of ammonium- reach anaerobic sludge digester liquor was investigated during start-up periods of two laboratory- scale ‘‘fill-and-draw’’ reactors. One reactor was fed with a single carbon source (ethanol), whereas the other reactor was fed with a complex carbon source (fusel oil). During two acclimation experiments, the structure of microbial community involved in denitrification was analyzed using...
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