Searched for: subject%3A%22bioreactor%22
(21 - 40 of 71)

Pages

document
Perdigão Elisiário, M. (author), De Wever, Heleen (author), Van Hecke, Wouter (author), Noorman, H.J. (author), Straathof, Adrie J.J. (author)
Syngas fermentation to biofuels and chemicals is an emerging technology in the biobased economy. Mass transfer is usually limiting the syngas fermentation rate, due to the low aqueous solubilities of the gaseous substrates. Membrane bioreactors, as efficient gas–liquid contactors, are a promising configuration for overcoming this gas-to...
review 2021
document
Talaei, Maryam (author), Mahdavinejad, Mohammadjavad (author), Azari, Rahman (author), Prieto Hoces, A.I. (author), Sangin, Hamed (author)
As a state-of-the-art green façade technology, building-integrated microalgae bioreactor has the potential to reduce buildings’ carbon footprint and energy consumption. The present study aims to address the knowledge gap in the energy and daylighting performance of algae photobioreactor façade. The paper first studies the effects of algae...
journal article 2021
document
Kim, E. (author), Ćurko, Josip (author), Gajdoš Kljusurić, Jasenka (author), Matošić, Marin (author), Crnek, Vlado (author), López-Vázquez, Carlos M. (author), Garcia, H. (author), Brdjanovic, Damir (author), Valinger, Davor (author)
The use of near-infrared (NIR) spectroscopy in wastewater treatment has continuously expanded. As an alternative to conventional analytical methods for monitoring constituents in wastewater treatment processes, the use of NIR spectroscopy is considered to be cost-effective and less time-consuming. NIR spectroscopy does not distort the...
journal article 2021
document
Odriozola, Magela (author), Lousada Ferreira, M. (author), Spanjers, H. (author), van Lier, J.B. (author)
Fouling is a major challenge for the economic feasibility and applicability of membrane bioreactors. Several strategies have been proposed for fouling control, and among them, addition of flux enhancers (FE) have shown promising results. Previous research revealed a high variability of the required optimal dosage of FE for different types of...
journal article 2021
document
Song, Ji Won (author), Baeg, Yoonjin (author), Jeong, Ha Yeon (author), Lee, Jinwon (author), Oh, Deok Kun (author), Hollmann, F. (author), Park, Jin Byung (author)
Bacterial outer membrane vesicles (OMVs) are small unilamellar proteoliposomes, involved in various functions including cell-to-cell signalling and protein excretion. We have engineered the OMVs of Escherichia coli to nano-scaled bioreactors for the biotransformation of fatty acids by targeting a fatty acid double bond hydratase of...
journal article 2021
document
Hajian, Christopher Sarkizi Shams (author), Haringa, C. (author), Noorman, H.J. (author), Takors, Ralf (author)
Scaling up bioprocesses is one of the most crucial steps in the commercialization of bioproducts. While it is known that concentration and shear rate gradients occur at larger scales, it is often too risky, if feasible at all, to conduct validation experiments at such scales. Using computational fluid dynamics equipped with mechanistic...
journal article 2020
document
Garcia Rea, V.S. (author), Muñoz Sierra, Julian (author), Fonseca Aponte, L.M. (author), Cerqueda-Garcia, Daniel (author), Mollamohseni Quchani, K. (author), Spanjers, H. (author), van Lier, J.B. (author)
Phenolic industrial wastewater, such as those from coal gasification, are considered a challenge for conventional anaerobic wastewater treatment systems because of its extreme characteristics such as presence of recalcitrant compounds, high toxicity, and salinity. However, anaerobic membrane bioreactors (AnMBRs) are considered of potential...
journal article 2020
document
Yang, Jixiang (author), Spanjers, H. (author), van Lier, J.B. (author)
Coagulant addition and improved mixing conditions have been used in anaerobic membrane bioreactors (AnMBR) to improve membrane performance. Before coagulant was added, a flux of 8 L/m<sup>2</sup> h was applicable and transmembrane pressure (TMP) increased from 1 kPa to 10 kPa in 5 days. However, after the coagulant was added, a flux as high...
journal article 2020
document
Abdelrahman, Amr Mustafa (author), Ozgun, Hale (author), Dereli, Recep Kaan (author), Isik, Onur (author), Ozcan, Onur Yilmaz (author), van Lier, J.B. (author), Ozturk, Izzet (author), Ersahin, Mustafa Evren (author)
Excess sewage sludge in wastewater treatment plants (WWTPs) is regarded the key energy source for achieving energy neutral WWTPs. The anaerobic digestion process transforms sludge-organic matter into methane, which subsequently can be used for heat and electricity production. Conventional anaerobic digesters (ADs) have been used for sludge...
journal article 2020
document
Sousa Pires da Costa Basto, R.M. (author), Jiménez, M. (author), Mudde, R.F. (author), van der Wielen, L.A.M. (author), Cuellar Soares, M.C. (author)
Emulsion formation is a major concern when dealing with multiphasic fermentations. Flocculants can be used together with other demulsification techniques to improve oil recovery in multiphasic fermentations. In this paper, the impact of adding flocculants during a multiphasic fermentation with 10 wt% dodecane, to destabilize the broth...
journal article 2020
document
Odriozola, Magela (author), Morales, Nicolás (author), Vazquez-Padin, Jose R. (author), Lousada Ferreira, M. (author), Spanjers, H. (author), van Lier, J.B. (author)
Cationic polymers have proven to be suitable flux enhancers (FEs) in large‐scale aerobic membrane bioreactors (MBRs), whereas in anaerobic membrane bioreactors (AnMBRs) research is scarce, and so far, only done at lab‐scale. Results from MBRs cannot be directly translated to AnMBRs because the extent and nature of membrane fouling under...
journal article 2020
document
Tao, Y. (author), Ersahin, M.E. (author), Ghasimi, S.M.D. (author), Ozgun, H. (author), Wang, H. (author), Zhang, X. (author), Guo, Miao (author), Yang, Yunfeng (author), Stuckey, David C. (author), van Lier, J.B. (author)
Anaerobic digestion (AD) has been commercially operated worldwide in full scale as a resource recovery technology underpinning a circular economy. However, problems such as a long start-up time, or system instability, have been reported in response to operational shocks. These issues are usually linked to the dynamics of the functional...
journal article 2020
document
Almeida Benalcazar, E.F. (author), Noorman, H.J. (author), Maciel Filho, Rubens (author), Posada Duque, J.A. (author)
Background: Ethanol production through fermentation of gas mixtures containing CO, CO<sub>2</sub> and H<sub>2</sub> has just started operating at commercial scale. However, quantitative schemes for understanding and predicting productivities, yields, mass transfer rates, gas flow profiles and detailed energy requirements have been lacking in...
journal article 2020
document
Ozgun, H. (author), Ersahin, M.E. (author), Zhou, Z. (author), Tao, Y. (author), Spanjers, H. (author), van Lier, J.B. (author)
This study provides a comparison of the sludge characteristics along the height of an upflow anaerobic sludge blanket (UASB) reactor in terms of sludge morphology, activity and stability. The main aim of this study was to identify the best location (i.e. where sludge is of lowest stability and/or highest concentration) in the sludge bed for...
journal article 2019
document
Yavari, Mohsen (author), Ebrahimi, S. (author), Aghazadeh, Valeh (author), Ghashghaee, Mohammad (author)
The relative performance of two biofilm-based airlift reactors using different kinds of packing materials and one fixed bed biofilm reactor with a homemade packing material of high specific area (~ 1000 m<sup>2</sup>/m<sup>3</sup>) was addressed. The bioreactors operated under ferrous iron loading rates in the range of 8–120 mol Fe(II)/m<sup...
journal article 2019
document
Dereli, R.K. (author), van der Zee, F. (author), Ozturk, Izzet (author), van Lier, J.B. (author)
Whey, produced in large quantities during cheese production, is a rapidly fermentable high strength wastewater characterized by a high biodegradability and low alkalinity. In this study, a lab-scale cross-flow anaerobic membrane bioreactor was used to address the commonly experienced difficulties such as unstable reactor performance and...
journal article 2019
document
Odriozola, Magela (author), Abraham, E. (author), Lousada Ferreira, M. (author), Spanjers, H. (author), van Lier, J.B. (author)
The application of cationic polymers to enhance membrane fluxes in anaerobic membrane bioreactors has been proposed by several authors. However, literature shows contradictory results on the influence of those chemicals on the biological activity. In this research, we studied the effect of a cationic polymer on the production of methane from...
journal article 2019
document
Lehner, B. (author), Schlechten, J. (author), Filosa, A. (author), Canals Pou, A. (author), Mazzotta, D. G. (author), Spina, F. (author), Tjon, S. Y. (author), Meyer, A. S. (author), Brouns, S.J.J. (author)
In situ resource utilization (ISRU) increasingly features as an element of human long-term exploration and settlement missions to the lunar surface. In this study, all requirements to test a novel, biological approach for ISRU are validated, and an end-to-end mission architecture is proposed. The general mission consists of a lander with a...
journal article 2019
document
Szabo Corbacho, M. (author), Pacheco-Ruiz, Santiago (author), Míguez, Diana (author), Hooijmans, Christine Maria (author), Garcia, H. (author), Brdjanovic, Damir (author), van Lier, J.B. (author)
In this study, the impact of applied solids retention time (SRT) on the biological performance of an anaerobic membrane bioreactor (AnMBR) treating synthetic dairy wastewater with high lipid content was assessed. Two side-stream AnMBR systems were operated at an SRT of 20 and 40 days (R20 and R40, respectively), equipped with an inside-out...
journal article 2019
document
Zahmatkesh, M. (author)
In order to address the ambiguities and knowledge gaps in the HA removal by WRF, mechanisms of removal were explored in chapter 2. It was shown that the mechanisms of HA removal by WRF involves the degradation of HA to smaller molecules, conversion to FA and also biosorption of HA by fungal mycelia. Furthermore, the ability of laccase to...
doctoral thesis 2018
Searched for: subject%3A%22bioreactor%22
(21 - 40 of 71)

Pages