Searched for: subject%3A%22filtration%22
(1 - 20 of 80)

Pages

document
van der Hoek, J.P. (author), Deng, Tianyi (author), Spit, Tiza (author), Luimstra, Veerle (author), de Kreuk, M.K. (author), van Halem, D. (author)
Organic micropollutants (OMPs) enter the aquatic environment via municipal wastewater treatment plants (WWTPs). As conventional WWTPs have limited capacity for the removal of OMPs, additional processes are required, like ozone - granular activated carbon (GAC) filtration. A specific lay-out of this process is the O3-STEP® process, in which the...
journal article 2024
document
Huang, Yuwei (author)
Slow sand filters (SSFs) are essential for ensuring microbial quality and biological stability of drinking water in the Netherlands. However, gaps exist in understanding of removal processes of dissolved organic carbon (DOC) and ammonium and the effects of grain size, loading rate, and backwashing on removal in SSFs.<br/>Four lab-scale SSF...
master thesis 2023
document
Calderon Franco, D. (author), Corbera Rubio, F. (author), Cuesta Sanz, M. (author), Pieterse, Brent (author), de Ridder, David (author), van Loosdrecht, Mark C.M. (author), van Halem, D. (author), Laureni, M. (author), Weissbrodt, D.G. (author)
Drinking water treatment plants (DWTPs) are designed to remove physical, chemical, and biological contaminants. However, until recently, the role of DWTPs in minimizing the cycling of antibiotic resistance determinants has got limited attention. In particular, the risk of selecting antibiotic-resistant bacteria (ARB) is largely overlooked in...
journal article 2023
document
Stuyfzand, Pieter Jan (author), Bonte, Matthijs (author)
Arsenic is a common trace element in groundwater and its fate and transport are controlled by combination of (i) natural processes, including redox conditions, salinity and pH, (ii) sedimentary and geochemical environment, and (iii) anthropogenic influences such as groundwater extraction, managed aquifer recharge (MAR), Aquifer Thermal Energy...
journal article 2023
document
Han, Heejoo (author), Kim, Daehyun D. (author), Song, Min Joon (author), Yun, Taeho (author), Yoon, Hyun (author), Lee, Hong Woon (author), Kim, Young Mo (author), Laureni, M. (author), Yoon, S.Y. (author)
Wastewater treatment plants (WWTPs) are a major source of N<sub>2</sub>O, a potent greenhouse gas with 300 times higher global warming potential than CO<sub>2</sub>. Several approaches have been proposed for mitigation of N<sub>2</sub>O emissions from WWTPs and have shown promising yet only site-specific results. Here, self-sustaining...
journal article 2023
document
Fitriani, Nurina (author), Theresia, Ledy (author), O'Marga, Timothy Tjahja Nugraha (author), Kurniawan, Setyo Budi (author), Supriyanto, Agus (author), Abdullah, Siti Rozaimah Sheikh (author), Rietveld, L.C. (author)
The present study investigated the utilization of blood clam shells as a potential substitute for conventional media, as well as the influence of the acclimation time on the efficacy of an intermittent slow sand filter (ISSF) in the treatment of real domestic wastewater. ISSF was operated with 16 h on and 8 h off, focusing on the parameters...
journal article 2023
document
Charaf, Hend (author)
Mashhad has been geopolitically an important city in the region and a trade and connection hub to Central and East Asian countries. It is also the second-largest Muslim pilgrimage city after Mecca. It is a global city for which religion shaped the identity and influenced the spatial configuration of the city.<br/><br/>Religion, politics and...
master thesis 2022
document
Odriozola, Magela (author)
Anaerobic membrane bioreactor (AnMBR) technology is increasingly researched for wastewater treatment in a circular economy scenario to recover nutrients, water, and biogas. AnMBR couples the advantages of anaerobic digestion, such as low sludge production, no aeration requirement and biogas production, with the benefits of membrane technology,...
doctoral thesis 2022
document
Ebrahimzadeh, S. (author), Wols, Bas (author), Azzellino, Arianna (author), Kramer, Franca (author), van der Hoek, J.P. (author)
Powdered activated carbon (PAC) is a promising technology to reduce organic micropollutants (OMPs) in drinking water treatment plants and combined with biological treatment processes such as rapid sand filters (RSFs), has the potential to remove a broad range of OMPs during water treatment. However, the removal of OMPs by a combination of two...
journal article 2022
document
Bai, Ying (author), Wang, Zongzhi (author), van der Hoek, J.P. (author)
Agricultural activities can be important source of organic pollution. In agricultural intensive areas, organic chemicals have a high possibility of entering the water cycle, which could pose a potential risk to human health. Low-cost and high efficiency in-situ techniques instead of energy and money consuming ones to control agricultural organic...
review 2022
document
Zhai, Yujia (author), Liu, G. (author), van der Meer, Walter G.J. (author)
The presence of newly emerging pollutants in the aquatic environment poses great challenges for drinking water treatment plants. Due to their low concentrations and unknown characteristics, emerging pollutants cannot be efficiently removed by conventional water treatment processes, making technically, economically, and environmentally...
journal article 2022
document
Fadili, Ali (author), Murtaza, Ali (author), Zitha, P.L.J. (author)
Water injection into the subsurface, inherent in improved hydrocarbon recovery and extraction of geothermal energy, often suffers from injectivity decline, even when water carries only nano-sized particles at low concentrations. This study investigates the propagation of such nano-sized particles experimentally and by modelling. Water with...
journal article 2022
document
Desmond, Peter (author), Huisman, Kees Theo (author), Sanawar, Huma (author), Farhat, Nadia M. (author), Traber, Jacqueline (author), Fridjonsson, Einar O. (author), Johns, Michael L. (author), Flemming, Hans Curt (author), Picioreanu, C. (author), Vrouwenvelder, J.S. (author)
The application of membrane technology for water treatment and reuse is hampered by the development of a microbial biofilm. Biofilm growth in micro-and ultrafiltration (MF/UF) membrane modules, on both the membrane surface and feed spacer, can form a secondary membrane and exert resistance to permeation and crossflow, increasing energy demand...
journal article 2022
document
Javier, Luisa (author), Pulido-Beltran, Laura (author), Vrouwenvelder, J.S. (author), Farhat, Nadia M. (author)
Nutrient limitation has been proposed as a biofouling control strategy for membrane systems. However, the impact of permeation on biofilm development under phosphorus-limited and enriched conditions is poorly understood. This study analyzed biofilm development in membrane fouling simulators (MFSs) with and without permeation supplied with...
journal article 2022
document
Batt, Till (author), Herwig, Gordon (author), Annaheim, Simon (author), Clement, Pietro (author), Furer, Lea (author), Hirsch, Cordula (author), Varanges, Vincent (author), Caglar, Baris (author), Michaud, Véronique (author)
The COVID-19 pandemic resulted in shortages of personal protective equipment and medical devices in the initial phase. Agile small and medium-sized enterprises from regional textile industries reacted quickly. They delivered alternative products such as textile-based community masks in collaboration with industrial partners and research...
journal article 2022
document
Zhao, Jian (author), Fang, Shangbiao (author), Liu, G. (author), Qi, Weixiao (author), Bai, Yaohui (author), Liu, Huijuan (author), Qu, Jiuhui (author)
Biodegradation plays an important role in the removal of organic micropollutants (OMPs) during riverbank filtration (RBF) for drinking water production. The ability of ammonia-oxidizing microorganisms (AOM) to remove OMPs has attracted increasing attention. However, the distribution of AOM in RBF and its role in the degradation of OMPs...
journal article 2022
document
Abunada, M.B.M. (author), Dhakal, N. (author), Andyar, William Z. (author), Ajok, Pamela (author), Smit, Herman (author), Ghaffour, Noreddine (author), Schippers, Jan C. (author), Kennedy, M.D. (author)
This study aimed to quantify the effect of membrane surface porosity on particulate fouling predicted by the MFI-UF method at constant flux. Firstly, the surface porosity of polyethersulfone UF membranes (5–100 kDa) was determined using ultra-high resolution SEM. Thereafter, the MFI-UF was measured using suspensions of polystyrene particles ...
journal article 2022
document
van den Akker, H.E.A. (author), Hazelhoff Heeres, Doedo P. (author), Kloek, William (author)
A spatially resolved one dimensional pressure filtration model was developed for a slurry of edible fat crystals. The model focuses on the expression step in which a cake is compressed to force the liquid through a filter cloth. The model describes the local oil flow in the shrinking cake modeled as a porous nonlinear elastic medium existing...
journal article 2021
document
An, Seongnam (author), Kang, Peter K. (author), Stuyfzand, Pieter Jan (author), Lee, Woonghee (author), Park, Saerom (author), Yun, Seong Taek (author), Lee, Seunghak (author)
Various hydrogeochemical processes can modify the quality of river water during riverbank filtration (RBF). Identifying the subsurface processes responsible for the bank-filtered water quality is challenging, but essential for predicting water quality changes and determining the necessity of post-treatment. However, no systematic approach for...
journal article 2021
document
Annaduzzaman, M. (author), Rietveld, L.C. (author), Amin Hoque, Bilqis (author), Bari, Md Niamul (author), van Halem, D. (author)
Generally, abstracted groundwater is aerated, leading to iron (Fe<sup>2+</sup>) oxidation to Fe<sup>3+</sup> and precipitation as Fe<sup>3+</sup>-(hydr)oxide (HFO) flocs. This practice of passive groundwater treatment, however, is not considered a barrier for arsenic (As), as removal efficiencies vary widely (15–95%), depending on Fe/As ratio...
journal article 2021
Searched for: subject%3A%22filtration%22
(1 - 20 of 80)

Pages