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Showing 1 to 20 of 36 for “"Adsorption processes"”.
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Theoretical and experimental study of electrochemically mediated adsorption processes
… treatment required. Electrochemically mediated adsorption, is one of the emerging electrosorption techniques. The great advantage of this technique is its superb selectivity (>100), which allows selective removal of toxic or recovery of high-valued target ions under low energy consumption, which …
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MULTIVARIATE FLEXIBLE METAL ORGANIC FRAMEWORKS: THE ROLE OF FUNCTIONALIZED LINKERS, HETEROGENEITY AND DEFECTS IN ADSORPTION PROCESSES
… them useful for applications in selective gas adsorption/separation. Furthermore, a number of MOFs have the ability to respond to specific stimuli such as host-guest interactions, temperature or pressure change, light, etc. To date, most of the applications of these flexible MOFs is related to …
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Studies on the Degradation of Desiccants in Temperature Swing Adsorption Processes and the Adsorptive Separation of Sulfur Compounds from Industrial Fluids
… natural gas through dehydration and sweetening processes. Adsorptive separation also can remove CO2 and sulfur dioxide (SO2) from industrial flue gases. The dehydration of natural gas by adsorption is a standard technology used worldwide. For natural gas wells in remote locations or offshore, …
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Adsorption on smooth electrodes: A radiotracer study
Adsorption on solids is a complicated process and in most cases, occurs as the early stage of other more complicated processes, i.e. chemical reactions, electrooxidation, electroreduction. The research reported here combines the electroanalytical method, cyclic voltammetry, and the use of …
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Predicting the removal of atrazine by powdered and granular activated carbon
… carbon (PAC) and granular activated carbon (GAC) adsorption processes.
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Reversible and irreversible adsorption of naphthalene and α-naphthol to soil
… with naphthalene and a-naphthol to compare the processes involved in the sorption of a polycyclic aromatic hydrocarbon (PAH) and its metabolite, respectively, and to assess the bioavailability of these two compounds adsorbed to two sandy soils with different organic carbon contents. Adsorption …
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Cellulose-metal organic framework nanocomposite adsorbent films for water remediation
… X-ray photoelectron spectroscopy (XPS). Batch adsorption experiments were carried out for the decontamination of MB from aqueous solutions under different conditions including varying pH, contact time, initial MB concentration, and temperature. The optimum adsorption conditions were at pH 11, …
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ADSORPTION OF ANTIBIOTICS BY VERMICULITE
… contaminated water. In this thesis work, the adsorption of four antibiotics, namely chlorotetracycline (CTC), oxytetracycline (OTC), ofloxacin (OFL), and enrofloxacin (ENR), onto natural vermiculite has been studied using batch (static) and column (dynamic) adsorption techniques. The Langmuir …
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Impact of carbon micro/mesoporosity on the adsorption behavior of small molecules
Adsorption studies on carbon play a key role in fields such as environmental remediation, purification, and catalysis. Because of the inherently high surface area, low cost, and inertness of activated carbons, these materials have been the preferable substrate for remediation studies. The …
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Management of disinfection byproduct production in small drinking water systems
… was to better understand how the water treatment processes employed at four smaller municipal water treatment utilities affects THM and HAA formation by measuring the removal of organic precursors through each major treatment process and by studying the concentrations formed as part of normal …
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Multinuclear Solid-State Nuclear Magnetic Resonance Spectroscopy of Microporous Materials
… The local Mg environments and the rehydration/adsorption processes of CPO-27-Mg were examined by natural abundance 25Mg SSNMR at an ultrahigh magnetic field of 21.1 T. The dynamics of several guest molecules inside of CPO-27-M were monitored by variable-temperature 2H SSNMR. The structures of …
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Investigation and Characterization of the Optical, Thermal, and Adsorption Properties of Carbon Aerogels for CO2 Capture Applications
… yet their coupled optical, photothermal, and CO₂ adsorption behaviour as monolithic sorbents remains insufficiently characterized. This thesis investigates a disc-shaped carbon aerogel for CO₂ capture under flue-gas-like conditions to clarify how its radiative and thermal properties govern …
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Virus in sewage, polluted water and molluscan shellfish: a critical assessment of coliphage as a possible indicator organism
… to viral inactivation. It is evident that adsorption is the major factor involved and that this applies to bacteria and coliphage as well as viruses. Other factors such as salinity, temperature and pH may exert an influence by increasing or decreasing adsorption processes. It is concluded …
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Physicochernical mechanics of surfactant-enhanced boiling heat transfer
… in a variety of industrial and domestic processes such as in power stations, heating/cooling systems, and desalination plants-is involved with a major portion of the world's energy usage. Its substantial utility can be attributed to moving a large quantity of heat over small temperature …
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Removal of Metformin and Clarithromycin from aqueous media using Magnetic Brewery Spent Grain
… the need for new modes of treatment. While adsorption has proven to be effective in many applications, conventional adsorbents such as activated carbon (AC) can be expensive to produce. Consequently, there is significant need for novel and low-cost adsorbents for the removal of priority …
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Wechselwirkung von dünnen Schichten aus HVZ Polyestern im wässrigen Medium mit Modellproteinen
… techniques with respect to further protein adsorption investigations. In Chapter 3.3 the strategy for the fabrication of surface attached carboxyl terminated HBP using "grafting to" technique is developed. The Chapter 4 consists of two parts: The first (theoretic) part outlines the …
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Adsorption Thermodynamics and Mass Transfer of Toxic Volatile Organic Compounds in Activated -Carbon Fiber -Cloth for Air Pollution Control
… emitted by major industrial point sources. Adsorption is one of the most practical mechanisms that can be used to separate and recover TVOCs before they are discharged into the atmosphere. Research on new adsorbent materials and adsorption processes were performed to achieve this goal. In …
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Applying NMR Relaxation Methods to the Study of Liquids in Porous Media
… techniques to unambiguously characterise the adsorption behaviour of liquids imbibed within catalytic materials. Principally, this study is centred on γ-alumina, which is used industrially as both a catalyst and a catalyst support. Ratios of fixed field T1 and T2 values were compared with fast …
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Peptide ligands that bind to staphylococcal enterotoxin B (SEB)
… in biosensors for the detection of SEB. Affinity adsorption processes using short peptides as ligands show great promise in purifying and detecting proteins in comparison with other methods due to their high stability and low cost. By screening a solid-phase combinatorial peptide library, a short …
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