carbon adsorption Articles
-
Carbon adsorption system - Case Study
Odour control at the Baldovie Waste to Energy Plant in Dundee is provided by our Carbon Adsorption System. Purpose designed extraction systems remove odour from all areas of the plant and transport it to the fixed bed Carbon Adsorption System. ...
-
The study of the recovery of highly purified terephthalic acid from alkali weight-reduction wastewater
A new process has been developed for recovering the terephthalic acid (TPA) with high purity from alkali weight-reduction wastewater. Three methods were used to purify the mother liquor: coagulation-sedimentation, carbon adsorption and the combination of these two methods. The results show that the nature of the TPA is greatly improved by coagulation-sedimentation or by carbon adsorption, ...
-
Manufacturer Recycles Solvents, Cuts Air Emissions
Untitled Document To achieve an acceptable level of solvent emissions, Sellotape Products Ltd. of New Zealand installed a carbon adsorption system. This paper describe's the factory's system. To view the full article, click here (PDF - 5 KB) ...
-
Activated carbon adsorption tower design parameters
ACTIVATED CARBON ADSORPTION TOWER - calculation book activated carbon adsorption towerDesign air volume: Q=20000m3/h=5.56m3/s.Parameter design requirements: ①Pipeline wind speed: V1=10~20m/s,②The superficial gas velocity is the velocity of the gas passing through the entire cross-section of the adsorber. Empty tower wind speed: V2=0.8~1.2m/s,③Filtering wind speed: V3=0.2~0.6m/s,④Filter residence ...
-
Utilisation of eggshell membrane as an adsorbent for carbon dioxide
Carbon dioxide (CO2) is a major greenhouse gas responsible for global warming. This work aims to explore a cheap and easy way for CO2 adsorption from the atmosphere, by using an eggshell membrane. Eggshell membrane could be used up to four times with intermediate regeneration with acetic acid solution. Atomic absorption spectrophotometer (AAS) analysed the amount of CO2 adsorbed as equivalent ...
-
Air Emissions/Off-Gas Treatment
A number of technologies have been widely applied for removal of VOCs from off-gas streams. However, the application of these technologies to off-gases from site remediation may be quite limited. Biofiltration has been widely applied for VOC destruction in Europe and Japan, but it has only recently been used in the United States. Catalytic and thermal oxidation are widely used for the destruction ...
-
Adsorption kinetics, isotherms and thermodynamics of atrazine removal using a banana peel based sorbent
Atrazine removal from water by treated banana peels was studied. The effect of pH, contact time, initial atrazine concentration, and temperature were investigated. Batch experiments demonstrated that 15 g L−1 adsorbent dosage removed 90–99% of atrazine from 1–150 ppm aqueous solutions. The removal was both pH and temperature dependent with the most atrazine removed between pH 7 and 8.2 and ...
-
Commonly used waste gas treatment: activated carbon adsorption method
Activated carbon adsorption method Principle of Contamination Activated carbon adsorption method is a widely used method of VOCs treatment due to low initial investment. It adsorbs VOCs through the natural adsorption capacity of activated carbon. When the adsorption is saturated, the activated carbon is desorbed and regenerated or handed over to professional hazardous waste companies for ...
-
Acid Gas Removal Unit
What is acid gas? Very strictly speaking, an acid gas is any gaseous compound that forms an acidic solution when dissolved in water. While there are many types of acid gases, the most prevalent are carbon dioxide (CO2) and hydrogen sulfide (H2S). These chemicals are commonly found in natural gas deposits but render the gas unusable. They are not toxic when they come into contact with people, they ...
-
Error analyses in volumetric method for measuring methane and CO
2adsorption on coalCO2 sequestration in deep coal seams with enhanced coalbed methane recovery (CO2–ECBM) is emerging as a promising option to stabilise CO2 concentration in the atmosphere. Volumetric method for measuring methane and CO2 adsorption on coal can generate the critical information of the coalbed methane recovery and CO2 storage amount of the target coal seams. In this work, the potential sources of ...
-
Influence of solute dissociation constants on the optimum adsorption of weak electrolytes on activated carbons
The pH of solutions has dramatic effects on the adsorption capacity of activated carbons from solutions, while the adsorption curves for weak electrolytes acquired as a function of pH show maxima at some intermediate pH. This intermediate pH is usually near the pKa of the electrolyte. Some apparent controversy inherent in these statements has, however, motivated experimental and analytical ...
-
Carbon Adsorption System at Pharmaceutical Plant- Ireland - Case Study
Simdean Group have successfully designed, manufactured, installed and commissioned a new carbon adsorption system at a large pharmaceutical research and production facility situated in ...
-
Adsorption performance of coconut shell activated carbon for the removal of chlorate from chlor-alkali brine stream
Activated carbon from coconut shell was used to investigate the adsorption of chlorate from a chlor-alkali plant's brine stream. The effect of pH, flowrate, chlorate and chloride concentration on the breakthrough curves were studied in small-scale column trials. The results obtained show enhanced adsorption at low flowrates, higher chlorate concentrations, and at a pH of 10. These studies ...
-
Modeling the adsorption of emerging contaminants on activated carbon: classical and quantum QSAR approaches
The adsorption of 115 emerging contaminants, mainly organic chemicals identified by the US Environmental Protection Agency's 2009 Contaminant Candidate List 3, was ranked using two published classical quantitative structure-activity relationship (QSAR) models and a newly developed quantum QSAR model. Approximately 75% of the investigated contaminants were predicted to be ...
-
The use of step and pulse tests to design activated carbon adsorption columns for recovery of copper ions from aqueous industrial effluents
Dynamic experiments were carried out on the adsorption of copper ions in a laboratory packed bed of activated carbon. Both pulse and step change inputs were used. Measurements were reproducible and replicate measurements furnished nearly identical parameters for a conventional heterogeneous model of the activated carbon bed, assuming a Langmuir adsorption isotherm. Bed depth had little effect on ...
-
Cadmium and lead removal from municipal landfill leachate using carbon adsorbent made from oil palm shell
This paper focused on adsorption process for metals removal from landfill leachate using oil palm shell as adsorbent. Raw shells were grinded to sizes of about 2 mm, followed by heating in at 420°C for a period of 4 hours. Batch test indicated a removal of more than 60% Cd and Pb from leachate samples. The removal process agrees with the Freundlich isotherm model. Column test for continuous flow ...
-
Adsorption of cadmium(II) from aqueous solutions by thiol-functionalized activated carbon
Thiol groups of adsorbent surfaces offer strong affinities for heavy metal ions, such as Hg(II), Pb(II), Cd(II), and so on. In this study, thiol group was impregnated to activated carbon by a series of treatments of oxidation and chlorination followed by 1,2-ethanedithiol introduction in order to investigate the adsorption properties of Cd(II) in aqueous solution. Batch sorption experiments were ...
-
How can drinking water treatments influence chlorine dioxide consumption and by-product formation in final disinfection?
In this study water samples of different origins (subalpine lake, artificial lake and river) were treated by pre-oxidation, coagulation/flocculation, adsorption on granular activated carbon and disinfection. Different laboratory-scale tests were carried out to evaluate the treatment impact on ClO2 consumption in disinfection and on the formation of disinfection by-products (trihalomethanes, ...
-
Use of Carbon Adsorption Processes in Groundwater Treatment
Untitled Document Summary: One of the leading treatment technologies for reduction of organic contaminants in groundwater has become the adsorption process utilizing granular activated carbon (GAC). This paper presents a methodology for selecting the proper adsorption system design. The use of the isotherm test for evaluation of carbon adsorption is discussed, with new ...
-
Quantitative structure property relationships for the adsorption of pharmaceuticals onto activated carbon
Isotherms were determined for the adsorption of five pharmaceutical residues, primidone, carbamazepine, ibuprofen, naproxen and diclofenac, to Calgon Filtrasorb 300 powdered activated carbon (PAC). The sorption behavior was examined in ultra-pure and wastewater effluent organic matter (EfOM) matrices, where more sorption was observed in the ultra-pure water for PAC doses greater than 10 mg/L ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you