- document
- Schippers, Melanie (author), Duró, Gonzalo (author), Mosselman, E. (author), de Jongste, Leon (author) poster 2023
- document
-
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
- document
-
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
- document
- Duró, Gonzalo (author), Mosselman, E. (author), Schippers, Melanie (author), Reneerkens, Michiel (author), Ridderinkhof, Wim (author) conference paper 2022
- document
-
Dhakal, N. (author), Salinas-Rodriguez, Sergio G. (author), Hamdani, Jamal (author), Abushaban, Almotasembellah (author), Sawalha, Hassan (author), Schippers, Jan C. (author), Kennedy, M.D. (author)Rapid population growth and urbanization are two main drivers for the over-abstraction of conventional freshwater resources in various parts of the world, which leads to the situation of water scarcity (per capita availability <1000 m<sup>3</sup> /year). Predictions based on the World Bank projected population data and the FAO AQUASTAT...review 2022
- document
-
Mangal, M. Nasir (author), Yangali-Quintanilla, Victor (author), Salinas-Rodriguez, Sergio G. (author), Dusseldorp, Jos (author), Blankert, Bastiaan (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), Kennedy, M.D. (author), van der Meer, Walter G.J. (author)The potential of membrane scaling control by a real-time optimization algorithm was investigated. The effect of antiscalant dosing was evaluated from the induction time measured in glass batch-reactors, and from the operational performance of a lab-scale reverse osmosis (RO) unit and two pilot-scale RO units. Step changes in the antiscalant...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
-
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
- document
-
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
- document
-
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
- document
-
Mangal, M. Nasir (author), Salinas-Rodriguez, Sergio G. (author), Blankert, Bastiaan (author), Yangali-Quintanilla, Victor A. (author), Schippers, Jan C. (author), Van Der Meer, Walter G.J. (author), Kennedy, M.D. (author)The role of phosphate and humic substances (HS) in preventing calcium carbonate scaling and their impact on antiscalant dose was investigated for a reverse osmosis (RO) system treating anaerobic groundwater (GW) (containing 2.1 mg/L orthophosphate and 6-8 mg/L HS). Experiments were conducted with the RO unit (treating anaerobic GW), and with...journal article 2021
- document
-
Mangal, M. Nasir (author), Salinas-Rodriguez, Sergio G. (author), Dusseldorp, Jos (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), Kennedy, M.D. (author), van der Meer, Walter G.J. (author)Antiscalants are well known to prevent the precipitation of carbonate and sulphate scales of calcium in reverse osmosis (RO) applications, but according to literature their inhibitory ability against calcium phosphate is not clear. The objective of this study was to investigate if antiscalants, without acid addition, can prevent calcium...journal article 2021
- document
-
Abushaban, Almotasembellah (author), Salinas-Rodriguez, Sergio G. (author), Kapala, Moses (author), Pastorelli, Delia (author), Schippers, Jan C. (author), Mondal, Subhanjan (author), Goueli, Said (author), Kennedy, M.D. (author)Several potential growth methods have been developed to monitor biological/organic fouling potential in seawater reverse osmosis (SWRO), but to date the correlation between these methods and biofouling of SWRO has not been demonstrated. In this research, the relation between a new adenosine triphosphate (ATP)-based bacterial growth potential ...journal article 2020
- document
-
Sousi, Mohaned (author), Salinas-Rodriguez, Sergio G. (author), Liu, G. (author), Schippers, Jan C. (author), Kennedy, M.D. (author), van der Meer, Walter (author)Measuring bacterial growth potential (BGP) involves sample pre-treatment and inoculation, both of which may introduce contaminants in ultra-low nutrient water (e.g., remineralized RO permeate). Pasteurization pre-treatment may lead to denaturing of nutrients, and membrane filtration may leach/remove nutrients into/from water samples....journal article 2020
- document
-
Sousi, Mohaned (author), Liu, G. (author), Salinas-Rodriguez, Sergio G. (author), Chen, L. (author), Dusseldorp, Jos (author), Wessels, Peter (author), Schippers, Jan C. (author), Kennedy, M.D. (author), van der Meer, Walter (author)Although water produced by reverse osmosis (RO) filtration has low bacterial growth potential (BGP), post-treatment of RO permeate, which is necessary prior to distribution and human consumption, needs to be examined because of the potential re-introduction of nutrients/contaminants. In this study, drinking water produced from anaerobic...journal article 2020
- document
-
Abushaban, Almotasembellah (author), Salinas Rodriguez, S.G. (author), Mangal, M.N. (author), Mondal, Subhanjan (author), Goueli, Said A. (author), Knezev, Aleksandra (author), Vrouwenvelder, J.S. (author), Schippers, Jan C. (author), Kennedy, M.D. (author)A direct method for measuring adenosine-triphosphate (ATP) in seawater was developed recently, in which commercial reagents are added directly to seawater. However, calibration is required if seawater quality changes (such as changes in salinity, pH, Mg<sup>2+</sup>, Fe<sup>3+</sup>) as the seawater matrix interferes with ATP measurement. In...journal article 2019
- document
-
Salinas Rodriguez, Sergio G. (author), Sithole, Nizordinah (author), Dhakal, N. (author), Olive, Margot (author), Schippers, Jan C. (author), Kennedy, M.D. (author)For assessing the particulate fouling of water, the modified fouling index (MFI0.45) is a superior test to the silt density index (SDI). There is a need to compare both tests in terms of sensitivity, how they are affected by the filter material and the type of support plate and also illustrate their use for monitoring of seawater quality over...journal article 2019
- document
-
Abushaban, Almotasembellah (author), Salinas-Rodriguez, Sergio G. (author), Dhakal, Nirajan (author), Schippers, Jan C. (author), Kennedy, M.D. (author)Various bacterial growth potential (BGP) methods have been developed recently to monitor biofouling in seawater reverse osmosis (SWRO) systems such as assimilable organic carbon and bacterial regrowth potential. However, the relationship between these methods and biofouling in SWRO desalination plants has not yet been demonstrated. In this...journal article 2019
- document
-
Sousi, Mohaned (author), Liu, G. (author), Salinas-Rodriguez, Sergio G. (author), Knezev, Aleksandra (author), Blankert, Bastiaan (author), Schippers, Jan C. (author), van der Meer, W.G.J. (author), Kennedy, M.D. (author)Ensuring the biological stability of drinking water is essential for modern drinking water supply. To understand and manage the biological stability, it is critical that the bacterial growth in drinking water can be measured. Nowadays, advance treatment technologies, such as reverse osmosis (RO), are increasingly applied in drinking water...journal article 2018
- document
-
Abushaban, Almotasembellah (author), Mangal, M.N. (author), Salinas-Rodriguez, Sergio G. (author), Nnebuo, Chidiebere (author), Mondal, Subhanjan (author), Goueli, Said A. (author), Schippers, Jan C. (author), Kennedy, M.D. (author)The use of adenosine triphosphate (ATP) to monitor bacterial growth potential of seawater is currently not possible as ATP cannot be accurately measured at low concentration in seawater using commercially available luciferase-based ATP detection. The limitation is due to interference of salt with the luciferin–luciferase reaction, which...journal article 2017