Searched for: author:"Rietveld, L.C."
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Gonzalez Rodriguez, B.J. (author), Rietveld, L.C. (author), Longley, A. J. (author), van Halem, D. (author)
Several surveys have been conducted in Nicaragua between 1996 and 2015 confirming the presence of high levels of arsenic (>10 μg/L). In this paper, these peer-reviewed (n = 2) and non-peer reviewed sources (n = 14) have been combined to provide an extensive overview of the arsenic contamination of drinking water sources in Nicaragua. So...
review 2019
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Ross, P.S. (author), van der Aa, L.T.J. (author), van Dijk, T. (author), Rietveld, L.C. (author)
Biological activated carbon (BAC) filtration is an important treatment step in the production of drinking water especially if drinking water is produced from surface water. The performance and processes within a BAC filter have been of interest for researchers since the 1980's, mainly because of its ability to remove natural organic matter...
journal article 2019
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Gonzalez Rodriguez, B.J. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author), van Halem, D. (author)
h) and temperatures (31,35 & 43 °C) on the rejection of As(V) during nanofiltration (NF) of natural geothermal influenced groundwater in Nicaragua. A NF pilot plant powered by solar panels was built and operated in rural community Telica, exposed to...
journal article 2019
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Kramer, F.C. (author), Shang, R. (author), Scherrenberg, S. M. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)
One of the perceived benefits of ceramic membranes is their robustness, which makes them suitable for treating high organic load waste streams. In particular, ceramic tight ultrafiltration (tUF) and nanofiltration (NF) form an important barrier against small colloids and organic molecules. In order to achieve this barrier, the quality of the...
journal article 2019
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Gonzalez Rodriguez, B.J. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author), van Halem, D. (author)
In Nicaragua, a Central American country, geothermally influenced waters are frequently found to be contaminated with arsenic (as As(V)). This study investigated the effect of high-temperatures (25–50 °C), as found in geothermally influenced source waters, on the rejection of monovalent H2AsO4 - and divalent HAsO4 2- species (at pH 6,7 and 8)...
journal article 2019
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Gude, J.C.J. (author), Rietveld, L.C. (author), van Halem, D. (author)
In the top layer of aerated rapid sand filtration systems, uncharged As(III) is biologically converted to charged As(V). Subsequently, the main removal mechanism for As(V) is adsorption onto oxidised, flocculated Fe(III) (hydrous ferric hydroxides; HFO). The aim of this research was to understand the interactions between As and Fe in...
journal article 2018
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Gutierrez Marin, Juan Pablo (author), van Halem, D. (author), Uijttewaal, W.S.J. (author), del Risco, Efraín (author), Rietveld, L.C. (author)
As a consequence of the suspended sediments in river water, cake formation on the streambed and clogging of the aquifer may occur, leading to a decline in the production yield of riverbank filtration systems, particularly in highly turbid river waters. However, naturally occurring flow forces may induce sufficient scouring of the streambed,...
journal article 2018
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Jiang, N. (author), Shang, R. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author)
High-silica zeolites have been found to be effective adsorbents for the removal of organic micro-pollutants (OMPs) from impaired water, including various pharmaceuticals, personal care products, industrial chemicals, etc. In this review, the properties and fundamentals of high-silica zeolites are summarised. Recent research on mechanisms and...
review 2018
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Perez Rodriguez, P. (author), Maqueira Gonzalez, Carlos (author), Doekhi-Bennani, Y. (author), Rietveld, L.C. (author), Zeman, M. (author), Smets, A.H.M. (author)
Currently available (photo-)electrochemical technologies for water treatment establish a trade-off between low-pollutant concentration and costs. This paper aims at decoupling these two variables by designing a photo-oxidation device using earth abundant materials and an electronic-free approach. The proposed device combines a graphite...
journal article 2018
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Daniel, D. (author), Marks, Sara (author), Pande, S. (author), Rietveld, L.C. (author)
Household water treatment (HWT) can effectively reduce exposure to unsafe drinking water at home. Understanding the characteristics of target groups who successfully adopt HWT, such as perception about water quality and usefulness of HWT, income, or parental education, is essential for enhancing the adoption of HWT in developing countries. The...
journal article 2018
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Marques Arsénio, A. (author), Salim, Iana Câmara (author), Hu, Mingming (author), Matsinhe, Nelson Pedro (author), Scheidegger, Ruth (author), Rietveld, L.C. (author)
In Maputo, the capital of Mozambique, nitrate concentrations above 250 mg L??1 in groundwater have been reported. This happens due to the widespread use of latrines and septic tanks that allow for constant infiltration of its content into the soil and eventually to groundwater sources, a situation that is widespread in the Global South and...
journal article 2018
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Gude, J.C.J. (author), Rietveld, L.C. (author), van Halem, D. (author)
) with biological As(III) oxidation was investigated. For this purpose As(III) oxidation was monitored in pilot...
journal article 2018
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Gude, J.C.J. (author), Joris, Koen (author), Huysman, Koen (author), Rietveld, L.C. (author), van Halem, D. (author)
) and manganese (Mn). However, recently water companies expressed the ambition to also reduce arsenic (As) concentrations in these rapid sand filters. The aim of this study was...
journal article 2018
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Kramer, F.C. (author), Wantz, Eliot (author), Shang, R. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author)
conference paper 2017
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Gutierrez Marin, 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)
), present on filter grains, could abiotically be responsible...
journal article 2017
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Shang, R. (author), Goulas, A (author), Tang, CY (author), De Frias Serra, X. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)
Tight ceramic nanofiltration (NF) membranes allow efficient separation of organic matter and ions for advanced water treatment. These membranes are typically produced by the sol-gel method. Recently, atomic layer deposition (ALD), a self-limiting gas phase coating technique, has been explored for membrane fabrication and modification. In this...
journal article 2017
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Elias Maxil, J.A. (author), Hofman, J.A.M.H. (author), Wols, B.A. (author), Clemens, F.H.L.R. (author), van der Hoek, J.P. (author), Rietveld, L.C. (author)
This paper presents a model (inspired by another model) to calculate water temperature in free-surface flow with two main innovations: the convective heat transfer occurs only at the wetted perimeter of pipes, and the model was integrated to commercial software used for hydraulic calculations in drainage systems. Given these innovations, we...
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. (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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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. (author)

other 2017
Searched for: author:"Rietveld, L.C."
(1 - 20 of 56)

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