Searched for: subject%3A%22Reverse%255C+osmosis%22
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PYTHAROULIOU, ANGELINA (author)
The rapid increase in global population and rising demands have resulted in a shortage of clean water, depleting several of the Earth's reservoirs, especially those that reserve fresh water. Just 0.007% of the water on Earth is used to hydrate and feed billions of people, as determined by the water balance of the planet. Water-stressed nations...
master thesis 2023
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Straathof, Judith (author)
Water scarcity is a serious issue on many smaller islands, with population growth and the predicted impacts of climate change as driving factors. Bonaire is a small island located in the Caribbean Sea that has rural areas without grid connections to electricity and water. Agriculture, both livestock and hobby crop farming, in the Punta Blanku...
student report 2023
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Abunada, M.B.M. (author), Dhakal, Nirajan (author), Gulrez, Raffay (author), Li, L. (author), Abushaban, Almotasembellah (author), Smit, Herman (author), Moed, David (author), Ghaffour, Noreddine (author), Kennedy, M.D. (author)
This study aims at applying and verifying the MFI-UF method to predict particulate fouling in RO plants. Two full-scale RO plants treating surface water, with average capacity of 800–2000 m<sup>3</sup>/h, were studied. Firstly, the MFI-UF of RO feed and concentrate was measured using 5–100 kDa membranes at same flux applied in the RO plants ...
journal article 2023
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Huisman, Kees Theo (author), Franco-Clavijo, Natalia (author), Vrouwenvelder, J.S. (author), Blankert, Bastiaan (author)
In this study, a biofouling index based on the relative pressure drop is presented to quantitatively evaluate the amount of fouling in spacer-filled membrane filtration channels. The biofouling index was defined as the inverse of the time to reach a relative pressure drop of 100% and can be interpreted as a fouling rate or cleaning frequency....
journal article 2023
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Abunada, M.B.M. (author), Dhakal, Nirajan (author), Andyar, William Z. (author), Li, Yuke (author), Ajok, Pamela (author), Ghaffour, Noreddine (author), Schippers, Jan C. (author), Kennedy, M.D. (author)
This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both...
journal article 2023
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Woen, Monique (author)
Brine producing industries progressively become the centre of attentionas they carry greater environmental consequences. Despite the extensiveliterature that can be found on desalination, limited information is availableabout the practical comparison of the technologies with regards to the brineconcentration performance and associated energy...
master thesis 2022
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Mangal, Muhammad Nasir (author), Salinas-Rodriguez, Sergio G. (author), Dusseldorp, Jos (author), Blankert, Bastiaan (author), Yangali-Quintanilla, Victor A. (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), van der Meer, Walter G.J. (author), Kennedy, M.D. (author)
The objectives of this study are to assess the performance of antiscalants in increasing the recovery (≥85%) of a reverse osmosis (RO) plant treating anaerobic groundwater (GW) in Kamerik (the Netherlands), and to identify scalants/foulant that may limit RO recovery. Five different commercially available antiscalants were compared on the...
journal article 2022
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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
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Farhat, Nadia (author), Kim, Lanhee (author), Mineta, Katsuhiko (author), Alarawi, Mohammed (author), Gojobori, Takashi (author), Saikaly, Pascal (author), Vrouwenvelder, J.S. (author)
Monitoring the changes that occur to water during distribution is vital to ensure water safety. In this study, the biological stability of reverse osmosis (RO) produced drinking water, characterized by low cell concentration and low assimilable organic carbon, in combination with chlorine disinfection was investigated. Water quality at...
journal article 2022
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Haidari, A.H. (author), Witkamp, G. J. (author), Heijman, Sebastiaan (author)
Silica scaling is one of the major scaling challenges in Reverse Osmosis (RO). The safe operation practice is to keep the silica concentration below 150 mg/L in RO concentrate. This study addresses the effects of divalent cations such as calcium and magnesium on silica scaling in a seawater RO installation used as a pretreatment to Eutectic...
journal article 2022
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Abushaban, Almotasembellah (author), Salinas-Rodriguez, Sergio G. (author), Philibert, Marc (author), Le Bouille, L.C.M. (author), Necibi, Mohamed Chaker (author), Chehbouni, Abdelghani (author)
Many desalination plants still struggle to control biological fouling in seawater reverse osmosis (SWRO) systems as there are no standard methods to monitor this type of fouling. Strategies to control biofouling in SWRO systems have been proposed such as antifouling coating and lowering biofouling potential in SWRO feedwater through...
review 2022
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Bdour, Ahmed N. (author), Al-Sadeq, Noor (author), Gharaibeh, Muna (author), Mendoza-Sammet, Angeles (author), Kennedy, M.D. (author), Salinas-Rodriguez, Sergio G. (author)
Jordan was late in adopting seawater and brackish water desalination as a source until the late 1990s and early 2000s. However, ongoing studies are still discussing the technical, economic, and socio-political aspects of brackish water reverse osmosis (BWRO) desalination plants. In this study, the water–energy nexus was considered, in order...
journal article 2022
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Torres Serrano, V.M. (author), Eshun, Lordina Ekua (author), Farinha, Andreia (author), Witkamp, Geert Jan (author), Bucs, Szilard (author)
In this study, the efficiency of electrocoagulation (EC) with iron electrodes was applied to remove two phosphonates, 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP) and nitrilotris(methylene) triphosphonic acid (NTMP) from concentrates. This work provides a detailed description of the experimental procedure and results on phosphonate...
journal article 2022
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Abushaban, Almotasembellah (author), Salinas-Rodriguez, Sergio G. (author), Pastorelli, Delia (author), Schippers, Jan C. (author), Mondal, Subhanjan (author), Goueli, Said (author), Kennedy, M.D. (author)
In this study, the removal of particulate, organic and biological fouling potential was investigated in the two-stage dual media filtration (DMF) pretreatment of a full-scale seawater reverse osmosis (SWRO) desalination plant. Moreover, the removal of fouling potential in two-stage DMF (DMF pretreatment) was compared with the removal in two...
journal article 2021
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Ebrahimzadeh, S. (author), Wols, Bas (author), Azzellino, Arianna (author), Martijn, Bram J. (author), van der Hoek, J.P. (author)
Reverse osmosis (RO) is the most promising membrane technology in organic micropollutants (MPs) removal of drinking water treatment. For 78 MPs, passage and removal were evaluated with an ESPA3 RO membrane and the robustness of RO against MPs was studied. The MPs were classified according to their charge and hydrophobicity. The results showed...
review 2021
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Dhakal, N. (author), Salinas-Rodriguez, Sergio G. (author), Ampah, Joshua (author), Schippers, Jan C. (author), Kennedy, M.D. (author)
Measuring the bacterial growth potential of seawater reverse osmosis (SWRO) feed water is an issue that is receiving growing attention. This study developed and demonstrated the applicability of the flow-cytometry (FCM)-based bacterial growth potential (BGP) method to assess the biofouling potential in SWRO systems using natural microbial...
journal article 2021
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Sousi, Mohaned (author), Salinas-Rodriguez, Sergio G. (author), Liu, G. (author), Dusseldorp, Jos (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), van der Meer, Walter G.J. (author), Kennedy, M.D. (author)
The bacterial growth potential (BGP) of drinking water is widely assessed either by flow cytometric intact cell count (BGP<sub>ICC</sub>) or adenosine triphosphate (BGP<sub>ATP</sub>) based methods. Combining BGP<sub>ICC</sub> and BGP<sub>ATP</sub> measurements has been previously applied for various types of drinking water having high to low...
journal article 2021
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Kurupath, Vishnu Prasad (author), Kannam, Sridhar Kumar (author), Hartkamp, Remco (author), Sathian, Sarith P. (author)
Biological nanopores such as aquaporins combine the opposing functions of high water permeation and total ion exclusion in part by the virtue of their hourglass shape. Here, we perform molecular dynamics simulations to examine water and ion conduction through hourglass shaped nanopores created from carbon nanotubes (CNTs) of chirality (6,6), ...
journal article 2021
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Javier, Luisa (author), Pulido-Beltran, Laura (author), Kruithof, Joop (author), Vrouwenvelder, J.S. (author), Farhat, Nadia M. (author)
Biofouling is a problem that hinders sustainable membrane-based desalination and the stratification of bacterial populations over the biofilm’s height is suggested to compromise the efficiency of cleaning strategies. Some studies reported a base biofilm layer attached to the membrane that is harder to remove. Previous research suggested...
journal article 2021
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Dash, Asiman (author)
Resource recovery from waste streams is indispensable to shifting from a linear economy to a circular economy. Industrial concentrate is a waste stream that is actively researched to explore and expand the prospects of resource recovery. Strontium (Sr), an alkaline earth metal, while found regularly in concentrate streams has not been a focus...
master thesis 2020
Searched for: subject%3A%22Reverse%255C+osmosis%22
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