adsorption
Removal of congo red from wastewater by adsorption onto waste red mud
Ngày tải lên: 23/09/2012, 14:47
Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge
... by adsorption (Sundstrom et al.,1979). Therefore, it is important to evaluate the adsorption capacity of PAC in aeration tank and substances affecting the adsorption capacity of PAC. The adsorption ... decrease in the adsorption capacity significantly deteriorated the performance of PACT process. The adsorption of DOM with molecular weight ranged from 50,000 to 300,000 Da decr...
Ngày tải lên: 05/09/2013, 08:40
Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... plot for adsorption isotherms for AC-Fe, particle size 0.45-0.71mm, C A,0 1.11 - 8.60mg/L, dose 5g/L, pH of synthetic groundwater (pH8.18). Adsorption kinetics Two most popular adsorption ... process kinetics of adsorption. From equation (1), the use of n=1 from calculation and the assumption in section 3.1 (adsorption equilibrium), gives the overall rate of adsorption/ de-sor...
Ngày tải lên: 05/09/2013, 09:38
Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... Adsorption isotherm The distribution of arsenic between the liquid phase and the solid phase at equilibrium of the adsorption process can be described by the adsorption isotherm. Several adsorption ... arsenic adsorption by RH-Fe was dependent on pH and varied with arsenic initial concentration and adsorbent dose. Langmuir isotherm could describe the adsorption equilibrium and...
Ngày tải lên: 05/09/2013, 09:38
Contact-Adsorption-Regeneration-Stabilization Process for the Treatment of Municipal Wastewater
... data fitted well to both the Freundlich and Langmuir adsorption models. Keywords: activated sludge, adsorption, adsorptive equilibrium, adsorption model, municipal wastewater, regeneration. ... HRTs of the adsorption tank The effect of HRT of the adsorption tank to the CARS process is shown in Fig. 5. The COD removal changed slightly with a change of the HRT of the adsorpt...
Ngày tải lên: 05/09/2013, 09:38
Improvement of nutrient removal and phosphorus recovery in the anaerobic/oxic/anoxic process combined with sludge ozonation and phosphorus adsorption
... phosphorus adsorption were investigated. In this system, excess sludge was ozonated by microbubble ozonation, and then the supernatant of the ozonated sludge was flowed into a phosphorus adsorption ... phosphorus adsorption: A, previous study (Suzuki et al., 2006); B, this study. Influent Anaerobic tank Oxic tank Anoxic tank Effluent Sludge return Ozonation process Phosphorus adsor...
Ngày tải lên: 05/09/2013, 09:38
Study of ZrIV-loaded Orange Waste Gel for Selenate Adsorption
... increased, the adsorption curve shifted to the left because the number of adsorption sites remained fixed. If the gel provides a sufficient number of adsorption sites, Se VI adsorption density ... Selenate sorption studies Batch adsorption tests were carried out to determine the adsorption behavior for selenate on Zr IV -loaded SOW gel. The kinetic studies of Se VI adsorpt...
Ngày tải lên: 05/09/2013, 10:15
Treatment of semi-aerobic landfill leachate using durian peel-based activated carbon adsorption- Optimization of preparation conditions
... adsorbate in solution after adsorption is complete (mg/L); Q (mg/g) and b is the Langmuir adsorption constant related to the maximum adsorption capacity and the energy adsorption. The Freundlich ... adsorption due to the presence of energetically heterogenous adsorption sites [27]. Langmuir isotherm model of the DP activated carbon prepared showed relatively large COD adsorptio...
Ngày tải lên: 05/09/2013, 16:10
Adsorption characteristics of Ni2+ ion onto the diethylenetriaminepentaacetic acid-melamine / polyvinylidene fluoride blended resin
... is best modeled by the Langmuir adsorption isotherms model, which shows the mono-molecular layer characteristics of the adsorption sites on the resin. The adsorption of Ni 2+ ions onto the ... expanded bed for the adsorption of Ni 2+ and adsorption model. J. Env. Manag 2007, 85(4), 900-907. [8] Donat R., Akdogan A., Erdem E., Cetisli H. Thermodynamics of Pb 2+ and Ni 2+ adso...
Ngày tải lên: 05/09/2013, 16:11
Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc
... desorp- tion diffusivity is lower than that during adsorption. Adsorption Kinetics Transport Mechanisms. Removal of organic compounds by physical adsorption on porous adsorbents involves a number ... diffusion along the adsorbent surface (surface diffusion) after adsorption takes place. 4. Adsorption After transport to an available site, an adsorption bond is formed between the ads...
Ngày tải lên: 14/02/2014, 03:20