Advances in Separation Processes in Water and Waste Water Treatment Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: closed (10 May 2022) | Viewed by 1927

Special Issue Editors


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Guest Editor
Institute of Environmental Engineering, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Square 24, 50-363 Wroclaw, Poland
Interests: water quality; wastewater treatment; fouling; chemistry; water; transport phenomena

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Guest Editor
Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S, Canada
Interests: environment; water quality; environmental pollution; environmental analysis; wastewater treatment; electrospun membranes

Special Issue Information

Dear Colleagues,

Among the cornerstones of environmental protection is the protection of the water resources of fresh and saltwater ecosystems and ensuring access to drinking water of good quality. On the other hand, water scarcity and drought are increasingly frequent and widespread phenomena in various locations. There are many different types of water purification, and the separation process is the most important one. The application of membrane systems in water treatment has become increasingly popular, because they can reject most particulate and colloidal contaminants present in natural water sources while maintaining a high throughput of water. The major challenge limiting the performance and wider adoption of membrane systems is their tendency to become fouled. This phenomenon contributes to the loss of water production capacity.

This Special Issue welcomes submissions dealing with the application of separation technology in water treatment and will cover all aspects of separation science, including the synthesis and characterization of membranes, fundamental transport studies, lab-scale demonstrations, and optimization of separation processes. This Special Issue also seeks to address issues of transport phenomena, surface science, polymer synthesis, polymer physics, and nanotechnology, with a particular focus on the application of advanced materials for clean water production as well as pollutant removal.

Dr. Beata Malczewska
Dr. Mark Soberman
Guest Editors

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Keywords

  • novel techniques for water and wastewater treatment
  • development and application of different materials (polymeric and inorganic) for membrane water treatment
  • optimization of the applied treatment processes
  • removal of contaminants from water
  • pretreatment method to control fouling
  • membrane filtration modeling
  • particle deposition

Published Papers (1 paper)

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Research

18 pages, 3886 KiB  
Article
Adsorption of Natural Organic Matter and Phosphorus from Surface Water Using Heated Aluminum Oxide (Predeposited) Dynamic Membrane Adsorber
by Beata Malczewska
Appl. Sci. 2021, 11(16), 7384; https://0-doi-org.brum.beds.ac.uk/10.3390/app11167384 - 11 Aug 2021
Cited by 2 | Viewed by 1344
Abstract
The paper reports the removal of phosphorus and natural organic matter (NOM) from surface water by dynamic membrane (DM) adsorber. DM filter builds up as a layer of particles deposited via permeation through the membrane’s surface. This study reports the application of Heated [...] Read more.
The paper reports the removal of phosphorus and natural organic matter (NOM) from surface water by dynamic membrane (DM) adsorber. DM filter builds up as a layer of particles deposited via permeation through the membrane’s surface. This study reports the application of Heated Aluminium Oxide Particles (HAOPs) as a dynamic membrane adsorber. Filtration experiments were conducted with surface water and batch tests were carried out with synthetic water. The efficiency of phosphorus removal along with the efficiency of organics (represented as UV-254) removal was evaluated. Additionally, the impact of HAOPs surface loading on the changes of transmembrane pressure (TMP), the kinetics, isotherm modeling of the adsorption and the effect of the pH, the effect of ionic strength, the effect of coexisting organic matter on phosphorus removal efficiency were studied. In the case of phosphorus removal in batch adsorption experiments, its sorption kinetic and isotherm data were analyzed using pseudo-first- and pseudo-second-order models and Langmuir and Freundlich models, respectively. The results indicated that Langmuir adsorption isotherm fits the experimental data best (0.9894). The kinetics of phosphorus adsorption on HAOPs was best described by the pseudo-second-order model and the best removal was achieved at the pH 6–7 (96.65% on average). An increase in ionic strength did not impact the efficiency of phosphorus removal significantly. The outcome of this study highlights HAOPs efficiency in NOM removal up to 92% in filtration experiments. In the case of phosphorous, removal efficiency varied. For the highest HAOPs dose, the degree of phosphorus removal ranged up to 93 ± 5%. The same removal efficiency was observed for the lowest dose while for 17 g/m2 of HAOPs the fluctuations were larger and varied from 64.7% to 92%. The results demonstrate that HAOPs could potentially be applied in the removal of phosphorus from surface water, especially when there is a high concentration of phosphorus in the water. However, this process requires further research and optimization of its parameters. Full article
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