Searched for: author%3A%22Kennedy%2C+M.D.%22
(1 - 20 of 37)

Pages

document
Abdeldayem, O.M.H.M. (author), Dupont, Capucine (author), Ferras, David (author), Ndiaye, Lat Grand (author), Kennedy, M.D. (author)
Although industrial hydrothermal carbonization (HTC) uses wet feedstock, lab-scale studies tend to dry the feedstock under the assumption that the rehydration of the feedstock would restore its original properties. To the best of our knowledge, this assumption has not been thoroughly examined at the lab scale; therefore, its investigation is...
journal article 2024
document
Miller-Moran, Daniel (author), Trifunović, Nemanja (author), Kennedy, M.D. (author), Kapelan, Z. (author)
Water distribution networks (WDNs) require large capital investment and ongoing operational costs, resulting in their optimisation being a highly researched field. Despite the benefits tanks bring to networks, most optimisation models omit them as decision variables due to the complexity they can introduce to heuristic approaches. This paper...
journal article 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
Abdeldayem, O.M.H.M. (author), Al Noman, Md Abdullah (author), Dupont, Capucine (author), Ferras, David (author), Grand Ndiaye, Lat (author), Kennedy, M.D. (author)
According to existing literature, there are no conclusive results on the impact of stirring on hydrothermal carbonization (HTC); some studies report a significant impact on the product's properties, while others indicate no influence. This study investigates the influence of stirring rate on several responses and properties of HTC products,...
journal article 2023
document
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
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
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
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
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
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 &lt;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), 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
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
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
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
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
Heryanto, Tri (author), Sharma, Saroj Kumar (author), Daniel, D. (author), Kennedy, M.D. (author)
All of the possible strategies to reduce water losses in piped distribution systems follow the law of diminishing returns: the higher the expenditure on water loss reduction, the lower the progressive return in terms of water saved. Therefore, water utilities need to estimate the economic level of water losses (ELWL) so that they can reduce...
journal article 2021
document
Abdelrady, Ahmed (author), Sharma, Saroj (author), Sefelnasr, Ahmed (author), Kennedy, M.D. (author)
Bank filtration (BF) has been used for many years as an economical technique for providing high-quality drinking water. However, under anaerobic conditions, the aquifer release of undesirable metal(loid)s, such as iron manganese, and arsenic, reduces the bank filtrate quality and thus restricts the application of this technique. This study...
journal article 2020
document
Abdelrady, Ahmed (author), Bachwenkizi, J. (author), Sharma, S. (author), Sefelnasr, Ahmed (author), Kennedy, M.D. (author)
The effectiveness of bank filtration (BF) is highly dependent on the source water quality (e.g., organic matter composition, pH, and concentration of heavy metals (HMs)). In this study, the impact of dissolved organic matter (DOM) on the removal of selected metals (Cu, Zn, Pb, Se, and Ni) during BF was investigated. Column studies were...
journal article 2020
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
Al-Washali, T.M.Y. (author), Sharma, Saroj (author), Lupoja, Robert (author), AL-Nozaily, Fadhl (author), Haidera, Mansour (author), Kennedy, M.D. (author)
Reducing all water loss components to zero is neither technically possible nor economically viable. The water loss components should be accurately assessed and prioritised for a reduction. This paper investigates all methods that break down the water losses in distribution networks into apparent and real losses. Their accuracies and...
review 2020
Searched for: author%3A%22Kennedy%2C+M.D.%22
(1 - 20 of 37)

Pages