ADSORPTION ISOTHERM

To predict fate and transport of heavy metals in soils bothconceptual and quantitative model approaches have been de-veloped. These models include the determination of the na-ture of the binding forces, the description of the chemicaland physical mechanisms involved in heavy metal–surfacereactions a[r]

for the characterization and optimization of an adsorption process. So far, extensive research effort has been dedicated to a sound understanding of adsorption isotherm, kinetics and thermodynamics. Compared to adsorption isotherm and kinetics, there is lack of a t[r]

Dung môi + chất bẩn Ỉ Chưng chất Ỉ Dung môi + Chất bẩn Đốt 4.5.3 ĐƯỜNG ĐẲNG NHIỆT HẤP PHỤ ADSORPTION ISOTHERMS ĐƯỜNG ĐẲNG NHIỆT LANGMUIR Đường đẳng nhiệt Langmuir được xây dựng dựa trên [r]

δ-MnO2 and manganite may therefore be used as a pair of model systems for comparative studies of metastable-equilibrium adsorption. 5. Temperature dependence of metastable-equilibrium adsorption Since temperature (T) is expected to affect both adsorption thermodynamics and kinet[r]

MWCNTs were conducted under the following conditions: oxygenflow rate of 20 sccm, operating pressure of 0.5 Torr, microwave powerof 600 W, process duration of 5–35 s, and average sample temperatureof about 30 °C. It was demonstrated that the treatment result wasFig. 1. FE-SEM images of CNTs treated i[r]

THE DATA FOR LANGMUIR AND FREUNDLICH ADSORPTION ISOTHERMS WERE TAKEN FROM BATCH ADSORPTION EXPERIMENTS EVALUATING EFFECT OF AGITATION TIME, AND INITIAL DYE CONCENTRATION AND ADSORBENT DO[r]

THE DATA FOR LANGMUIR AND FREUNDLICH ADSORPTION ISOTHERMS WERE TAKEN FROM BATCH ADSORPTION EXPERIMENTS EVALUATING EFFECT OF AGITATION TIME, AND INITIAL DYE CONCENTRATION AND ADSORBENT DO[r]

C. All adsorption isotherms were determined at initial pH of the resulting Cr (III) solution i.e. 3.2, without adding any buffer to control the pH to prevent introduction of any new electrolyte into the systems. The batch tests were conducted by loading a desirable amount of sorbent to the 25[r]

cost-effective technique and simple to operate [49 - 52]. It found that the adsorption process using natural adsorbents realize these prerequisites. In addition to that, the natural adsorbents are environmental friend, existent in a large quantities and has good adsorption properties.[r]

Working with alcohol dehydrogenase in a variety of solvents, they determined the adsorption isotherm of water on the enzyme in a variety of solvents.It was observed that the water presen[r]

by the fact that the different types of adsorption, solid=gas (S=G), solid=liquid (S=L), andliquid=gas (L=G), have, apparently, various properties and, therefore, these different phenomenashould be discussed and explained with different physical pictures and mathematical treatments.For exampl[r]

laboratory experiment were 16 and 50, respectively. Laterite and limonite, which are naturally and widely occurring minerals in Vietnam, can be used as potential sorbents for arsenic removal in smaller scale water treatment systems. The sorption capacities of laterite and limonite for As(V) were est[r]

TRANG 1 CHARACTERIZATION OF THE MICROBIAL COMMUNITY IN THE ANAEROBIC/OXIC/ANOXIC PROCESS COMBINED WITH SLUDGE OZONATION AND PHOSPHORUS ADSORPTION TAKASHI KONDO*, SATOSHI TSUNEDA**, YOSHI[r]

shallow offshore. With water depths of 50 m/164 ft or less, explorationand production techniques developed in the Gulf Coast area of U.S.could be applied here, i.e., using drilling barges and dredges in veryshallow water and jack-up rigs in deeper water.Progress in the oil- and gas-producing industr[r]

influence of phosphate. Soil Sci. 164, 888–898.Kruse, H.H., Lagaly, G., 1988. Automatische apparatur zurvolumetrischen gasadsorptionsmessung. GIT Fachzeitsch-rift fur das labor 32, 1096–1100.Kuo, S., McNeal, B.L., 1984. Effects of pH and cadmiumsorption by a hydrous ferric oxide. Soil Sci. Soc. Am. J.[r]

Influent Anaerobic tank Oxictank Anoxictank Effluent Sludge return Ozonation process Phosphorus adsorption column Influent Anaerobic tank Oxictank Anoxictank Effluent Sludge return Phosp[r]

TẠP CHÍ PHÁT TRIỂN KH&CN, TẬP 11, SỐ 08 - 2008 Trang 99 STUDY ON THE APPLICATION OF MELALEUCA CAJUPUT ACTIVATED CARBON IN THE TREATMENT OF WASTE WATER FOR TEXTILE INDUSTRY Phan Dinh Tuan, Nguyen Tran Huyen Anh University of Technology, VNU-HCM (Manuscript Received on January 10th, 2008, Ma[r]

nanotubes doped with 2–10% of nitrogen become metallic (Charlier, 2002; Czerw et al., 2001). Interestingly, nitrogen-doped carbon nanotubes constitute a good metal-free catalyst system for oxygen reduction reactions in alkaline media (Gong et al., 2009). In acidic media, these nitrogen-doped carbon[r]

NANO EXPRESS Open AccessGiant Persistent Photoconductivity of the WO3Nanowires in Vacuum ConditionKai Huang, Qing Zhang*AbstractA giant persistent photoconductivity (PPC) phenomenon has been observed in vacuum condition based on asingle WO3nanowire and presents some interesting results in the experi[r]

1Department of Biophysics, Technical University of Lodz, 2CoreLab of Medical University of Lodz, BioTechMed Technology Centre Lodz, Poland New Perspectives in Biosensors Technology and Applications 64 plasmon resonance (SPR) technology is a potent analytical tool for biomaterial surface study. Th[r]