Searched for: department%3A%22Water%255C%2BManagement%22
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Wang, Q. (author), Mitchell, Raja Louisa (author), Hofman, Roberta (author), Yu, Jianwei (author), Yang, Min (author), Rietveld, L.C. (author), Zietzschmann, F.E. (author)
Low molecular weight (LMW) dissolved organic matter (DOM) is the predominant competitor for adsorption sites against organic micropollutants (OMPs) in activated carbon adsorption. However, top-down approaches using highly complex mixtures of real water DOM do not allow to concisely examine the impacts of specific LMW DOM molecular properties...
journal article 2021
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Annaduzzaman, M. (author), Rietveld, L.C. (author), Ghosh, D. (author), Hoque, Bilqis A. (author), van Halem, D. (author)
Storage containers are usually used to provide a constant water head in decentralized, community groundwater treatment systems for the removal of iron (Fe) and arsenic (As). However, the commonly practiced aeration prior to storage assists in rapid and complete Fe<sup>2+</sup> oxidation, resulting in poor As removal, despite sufficient native...
journal article 2021
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Wei, L. (author), Li, Z. (author), Ye, G. (author), Rietveld, L.C. (author), van Halem, D. (author)
Excessive F<sup>-</sup> in drinking water due to natural and anthropogenic activities is a serious health hazard affecting humans worldwide. In this study, a comparative assessment was made of eight mineral-based materials with advantageous structural properties for F<sup>-</sup> uptake: layered-double-hydroxides (LDHs), geopolymers,...
journal article 2021
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Toja Ortega, S. (author), Pronk, M. (author), de Kreuk, M.K. (author)
High concentrations of particulate COD (pCOD) in the influent of aerobic granular sludge (AGS) systems are often associated to small granule diameter and a large fraction of flocculent sludge. At high particulate concentrations even granule stability and process performance might be compromised. However, pilot-or full-scale studies focusing...
journal article 2021
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Lin, B. (author), Heijman, Sebastiaan (author), Shang, Ran (author), Rietveld, L.C. (author)
Ceramic nanofiltration (NF) is a newly-developed technology for water recycling, but is still limited to pilot-scale applications. Lacking efficient and eco-friendly strategies for cleaning ceramic NF membrane impedes its scaling-up in industries. Forward flush, backwash and acidic/caustic cleaning are not efficient enough. In this work, a...
journal article 2021
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Araya-Obando, José A. (author), Rietveld, L.C. (author), Quesada-González, Andrea (author), Caballero-Chavarría, Andrey (author), Pacini, Virginia (author), Romero-Esquivel, Luis G. (author)
Biofiltration for Mn removal has not been proven in the tropics (18-29 °C). Also, the use of pumice as an alternative filter medium for Mn removal is still poorly known. In this study, a bench-scale biofiltration experiment, using virgin pumice, silica sand, and anthracite, was conducted for 107 days using tropical groundwater at 22 °C....
journal article 2021
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Salinas Rodriquez, Sergio (author)
Environmental flows (e-flows) science has significantly advanced in the last decades. In Mexico, a standard for e-flow assessments was recently published as a regulatory instrument to support water planning and management. However, the appropriateness of the technical procedure in a climate change context has not been investigated. Do the e...
doctoral thesis 2019
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Kramer, F.C. (author), Wantz, Eliot (author), Shang, R. (author), Heijman, S.G.J. (author), Rietveld, L.C. (author)
poster 2017
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Gutiérrez, Juan Pablo (author), van Halem, D. (author), Rietveld, L.C. (author)
The poor quality of many Colombian surface waters forces us to seek alternative, sustainable treatment solutions with the ability to manage peak pollution events and to guarantee the uninterrupted provision of safe drinking water to the population. This review assesses the potential of using riverbank filtration (RBF) for the highly turbid...
journal article 2017
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Gude, J.C.J. (author), Rietveld, L.C. (author), van Halem, D. (author)
The top layer of natural rapid sand filtration was found to effectively oxidise arsenite (As(III)) in groundwater treatment. However, the oxidation pathway has not yet been identified. The aim of this study was to investigate whether naturally formed manganese oxide (MnO<sub>2</sub>), present on filter grains, could abiotically be responsible...
journal article 2017
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Peters, M.C.F.M. (author), Keuten, M.G.A. (author), de Kreuk, M.K. (author), Vrouwenvelder, J.S. (author), Rietveld, L.C. (author), Medema, G.J. (author)
Aims Most swimming pools use residual disinfectants like chlorine for disinfection. The use of chlorine has several drawbacks: some waterborne-pathogens are chlorine resistant and disinfection by-products (DBPs) may be formed which are associated with various health risks. Therefore, an alternative treatment was developed which consists of...
abstract 2017
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Keuten, M.G.A. (author), Peters, M.C.F.M. (author), van Dijk, J.C. (author), van Loosdrecht, M.C.M. (author), Rietveld, L.C. (author)
other 2017
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Keuten, M.G.A. (author), Peters, M.C.F.M. (author), van Dijk, J.C. (author), van Loosdrecht, Mark C.M. (author), Rietveld, L.C. (author)
Swimming pools are traditionally disinfected with a residual disinfectant such as sodium hypochlorite. Nowadays, swimming water without a residual disinfectant is increasingly popular, as can be seen by the growing number of (natural) swimming ponds (Weilandt 2015), but health risks for bathers do raise concerns for these type of pools, so some...
abstract 2017
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Peters, M.C.F.M. (author), Keuten, M.G.A. (author), de Kreuk, M.K. (author), Vrouwenvelder, J.S. (author), Rietveld, L.C. (author), Medema, G.J. (author)
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other 2017
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Cai, H. (author), Savenije, H.H.G. (author), Jiang, C. (author), Zhao, L. (author), Yang, Q. (author)
The mean water level in estuaries rises in the landward direction due to a combination of the density gradient, the tidal asymmetry, and the backwater effect. This phenomenon is more prominent under an increase of the fresh water discharge, which strongly intensifies both the tidal asymmetry and the backwater effect. However, the interactions...
journal article 2016
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Ghasimi, D.S.M. (author)
Fine sieves can be implemented as compact alternatives to primary clarification. Fine sieved fraction (FSF) is a heterogeneous substrate that mainly consists of fibers originating from toilet paper and thus contains a high cellulosic fraction. Resource recovery and energy neutral sewage treatment is nowadays focus of many water authorities. This...
doctoral thesis 2016
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Delipetrev, B. (author)
Reservoir operation is a multi-objective optimization problem traditionally solved with dynamic programming (DP) and stochastic dynamic programming (SDP) algorithms. The thesis presents novel algorithms for optimal reservoir operation named nested DP (nDP), nested SDP (nSDP), nested reinforcement learning (nRL) and their multi-objective (MO)...
doctoral thesis 2016
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Rietveld, L.C. (author), Siri, J.G. (author), Chakravarty, I. (author), Arsenio, A.M. (author), Biswas, R. (author), Chatterjee, A. (author)
Background: As human populations become more and more urban, decision-makers at all levels face new challenges related to both the scale of service provision and the increasing complexity of cities and the networks that connect them. These challenges may take on unique aspects in cities with different cultures, political and institutional...
conference paper 2016
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Hut, R.W. (author), Tyler, S. (author), Van Emmerik, T.H.M. (author)
A prototype temperature-sensing pair of waders is introduced and tested. The water temperature at the streambed is interesting both for scientists studying the hyporheic zone and for, e.g., fishers spotting good fishing locations. A temperature sensor incorporated into waders worn by members of the public can give scientists an additional source...
journal article 2016
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Hu, J. (author)
In the recent years, the removal of micro-pollutants from treated wastewater has been highly advocated throughout Europe and the rest of the world. The relevant regulations and the suitable techniques have been proposed accordingly, which promoted the innovation of the conventional wastewater treatment plants (WWTPs). Activated carbon adsorption...
doctoral thesis 2016
Searched for: department%3A%22Water%255C%2BManagement%22
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