Adsorption Studies Of Synthetic Batik Dye Sbd Using Granular Activated Carbon Gac PDF Download
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| Author | : Normimi Fatihah Ibrahim |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 2012 |
| Genre | : Water |
| ISBN | : |
Download Adsorption Studies of Synthetic Batik Dye (SBD) Using Granular Activated Carbon (GAC) Book in PDF, ePub and Kindle
Batik industry is a very famous textile industry in Malaysia especially in East Coast of Peninsular Malaysia. Started in small scale, today it has become one of the highest economic growths in Malaysia due to high demands locally and from abroad. However, the wastewater from textile industry contributes to water pollution since it utilizes a lot of chemicals. Preliminary studies show that the wastewater from this homemade textile industry contains grease, wax, heavy metal, surfactant, suspended solid, and dyes (organic and inorganic). This research was done to study the potential of granular activated carbon (GAC) for the adsorption of synthetic batik dye (SBD) from aqueous solution by the variation of solution with different contact time, adsorbent dosage and initial concentration of SBD. Activated carbon (AC) is commonly known as one of the great adsorbents in adsorption process. For this study, granular activated carbon (GAC) has been used since it is preferred for all adsorption of gases and vapors as their rate of diffusion are faster. The synthetic batik dye has been chose because the research about this topic has not been done yet. There are three parameters that will be investigated; effect of adsorbent dosage (w), effect of contact time and effect of initial synthetic batik dye concentration. All results from the experiment were being analyzed using UV-Visible Spectrophotometer (UV-Vis). The results show that the color of the dye changes with different contact time, adsorbent dosage and also different initial concentration of synthetic batik dye. The data collected could be used to improve the effectiveness of dye removal from the batik industry wastewater using granular activated carbon (GAC). The research showed the applicability of GAC to adsorb the color of SBD. For SBD initial concentration shows the highest percentage concentration difference which is 69.75 % occurring at 0.2 g/L. While for adsorbent dosage, the highest dosage which is 60 gram get the highest percentage; 94.77 %. And for contact time, the longest contact time which is 20 minutes gets the highest percentage where the percentage is 95.06 %.
| Author | : Mohamad Norahiman Abdurahman |
| Publisher | : |
| Total Pages | : 38 |
| Release | : 2012 |
| Genre | : Adsorption |
| ISBN | : |
Download Adsorption Studies of Synthetic Batik Dye Using Granular Activated Carbon in Continuous System Book in PDF, ePub and Kindle
From this experiment, activated carbon as the adsorbent which from coconut shell is taken from industry. As well as methylene blue as the adsorbate. Dye will be flowed to the packed bed continuously. Two parameters will be concerned in this experiment which is initial concentration and time. In order to determine how this parameters will affect the adsorption process, so the percentage of loss concentration of dye will be determined. What will be expected is the higher initial concentration, the higher the adsorption capacity. Similar to time parameter, the longer time it takes, the percentage of concentration loss will be increase. So, from the data,the maximum percent removal of methylene blue is 87.7% for 40 ppm MB concentration, and adsorption start to constant after 3 hour contact time.
| Author | : Shuying Xu |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 2014 |
| Genre | : |
| ISBN | : |
Download Experimental Study of Methylene Blue Adsorption on Granular Activated Carbon Book in PDF, ePub and Kindle
It is hard to remove dye pollutants from wastewater. Adsorption is one of the effective methodologies for dye pollutants removal. The big challenge for adsorption is the determination of the equilibrium point. The equilibrium point may be misidentified when the change in concentration is in the acceptable experimental error range and/or when fitted isotherm parameters do not change over time. This study provides an estimation method based on integrated adsorption kinetics and isotherms to predict the aqueous adsorbate concentration at equilibrium and give a sense of the approach to equilibrium. In addition, the method provides information on how plots of absorbed concentration versus aqueous concentration change over time. To accomplish this, a synthetic model test was initiated in the laboratory using methylene blue as the adsorbate and granular activated carbon as the adsorbent. Two kinetic models (pseudo-first order and pseudo-second order) and three isotherms (linear, Langmuir, and Freundlich) were employed, yielding six integrated models. The pseudo-second order kinetic model with either Langmuir or Freundlich isotherm provides a good estimation of the aqueous adsorbate concentration at equilibrium. While the data collected were not well by any isotherm model, the pseudo-second order kinetic model with the Freundlich isotherm reasonably fit plots of absorbed concentration versus aqueous concentration over time.
| Author | : Maliha Parvin |
| Publisher | : |
| Total Pages | : 232 |
| Release | : 2015 |
| Genre | : Agricultural wastes |
| ISBN | : |
Download Adsorption of Dyes on Activated Carbon from Agricultural Wastes Book in PDF, ePub and Kindle
Adsorption of dyes as a remediation technique for dye-loaded wastewater remains an area of interest. On the one hand, adsorption using bio-derived, renewable sorbent materials can be seen as environmentally friendly, on the other hand adsorption can provide us with a trouble-free, commercially cheap operation. The main objective of this thesis is adsorption of the dyes Crystal Violet (CV) and Nile Blue (NB) on activated carbon derived from date palm leaf wastes. For this purpose, activated carbon was prepared via chemical treatment of palm leaf wastes with sulfuric acid (H2SO4), phosphoric acid (H3PO4), and nitric acid (HNO3), respectively, with subsequent carbonization through thermal treatment. Dye adsorption studies with this activated carbon were carried out under different conditions, and the influence of different parameters such as temperature, time, pH, dye concentration, dose and particle size of activated carbon (AC) was investigated in batch experiments. Furthermore, dynamic sorption experiments were performed successively. The present study found AC from date palm leaves to be a promising low cost adsorbent to remove CV and NB from.
| Author | : T. Karanfil |
| Publisher | : IWA Publishing |
| Total Pages | : 0 |
| Release | : 2008-02-15 |
| Genre | : Science |
| ISBN | : 9781843398141 |
Download DBP Formation Control by Modified Activated Carbons Book in PDF, ePub and Kindle
Powdered or granular activated carbon adsorption has been widely used in drinking water treatment plants primarily for taste, odor, and synthetic organic contaminant (SOC) removal. However, carbon adsorption has not been widely used for controlling DOM due to the low equilibrium capacities and slow adsorption kinetics. The main reason for these drawbacks is that the majority of commercial activated carbons have been developed primarily to remove small molecular weight hydrophobic SOCs from water. As a result, many commercial carbons do not provide feasible engineering solutions for removing large molecular weight and heterogeneous mixtures of DBP precursors. This research was undertaken to develop a fundamental understanding of tailoring activated carbons for DBP control. The main objectives of this project were to (1) conduct a systematic investigation for developing a fundamental understanding of how activated carbons should be tailored for enhanced removal of dissolved organic matter (DOM) from natural waters; and (2) investigate the effectiveness of some carbon tailoring approaches for disinfection by-products (DBP) formation control at typical drinking water treatment conditions. This project showed that the removal of DBP precursor by GAC adsorption can be significantly improved. GAC adsorption, using modified GACs, can provide another alternative to some water utilities for meeting the Stage 2 requirements of the Disinfectant/Disinfection By-Products Rule.
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Download Adsorption Characteristics of Congo Red Dye Onto PAC and GAC Based on S/N Ratio:A Taguchi Approach Book in PDF, ePub and Kindle
Adsorption characteristics of Congo Red dye(CR)on powdered activated carbon(PAC)and granular activated carbon(GAC)from aqueous solutions was studied. The potential for the adsorption of Congo Red dye at a fixed initial concentration of 100 ppm on PAC and GAC was carried out. The experiments were carried out in a batch system to optimize operation variables :pH, time and temperature for the same adsorbent dosage of 0.2 mg in 50ml of dye solution. The Taguchi experimental design method was applied for the systematic and effective investigation of the optimal conditions of operation variables. The pH of the solution remains the major influencing factor for the adsorption process in all the experimental runs.
| Author | : W. Muhammad Mutammimul Ula W. Abd. Latif |
| Publisher | : |
| Total Pages | : 53 |
| Release | : 2012 |
| Genre | : Adsorption (Biology) |
| ISBN | : |
Download Fixed Bed Adsorption for Wastewater Treatment Book in PDF, ePub and Kindle
This study is about the comparison of flow arrangement in fixed bed adsorption for wastewater treatment and also to study the equilibrium adsorption in batch mode, to study the column adsorption for dye removal, and to study the effect of flow pattern, flow rate and initial dye concentration. The adsorption of methylene blue from wastewater onto granular activated carbon (GAC) in fixed bed was investigated and breakthrough data of the dyes was determined. This research is run in small scale column at constant temperature and pH value. The equilibrium study was done on batch mode and the data fitted with Langmuir model so that the design parameter will be evaluated. The column mode was studied by considering varies parameter to find suitable flow pattern (up-flow and down-flow) and optimum flow condition. Both the flows will be subject to static mode adsorption studies. The effects of bed height, initial concentration and flow rate on breakthrough curve were investigated. It is found that breakthrough time and adsorption capacity increases by increasing flow rate, increasing initial concentration and decreasing bed height. The results show that the up-flow arrangement is better performance than the down-flow arrangement. This is due to the higher of the breakthrough time and the equilibrium capacity for up-flow column in all experimental conditions.
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| Release | : 2004 |
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Download Decolorization of Synthetic Dye Solutions by Using Basaltic Tephra and Clinoptilolite Book in PDF, ePub and Kindle
Discharge of colored effluents without decoloration originated from textile industries may cause serious problems in the receiving environments. In this study, natural materials that are basaltic tephra and clinoptilolite were used to remove various dyestuffs used in the textile industry. Those materials are cheap and available in large quantities in Turkey. The investigation of adsorption of basic, acidic and reactive dyes on these materials is the objective of this study. During preliminary experiments it was seen that adsorption equilibrium was reached in about 2 days. In adsorption experiments, in order to obtain adsorption isotherms, a fixed amount of adsorbent and 100 mL dye solutions of different concentrations were placed in glass bottles which were shaken at 200 rpm and 25"2oC for 2 days. Then, samples were filtered and the equilibrium concentrations of dyestuffs in the solutions were determined by using spectrophotometer at appropriate wavelength corresponding to the maximum absorbency. After equilibrium concentrations of the solutions were obtained, Langmuir and Freundlich adsorption isotherm constants were calculated for the adsorbents used in this study. The removal efficiencies for cationic basic dyes are higher than those for anionic acidic and reactive dyes with the natural materials. Therefore, modification of surface properties of natural materials with a cationic surfactant was considered to increase the removal efficiencies of those for anionic dyes. After modification of the surface properties, adsorption capacities of adsorbents for anionic dyes were higher than those of natural materials. Finally, the adsorption capacity of activated carbon for the same dyes was determined to compare with that of natural and modified materials. The results showed that the adsorption of dyes on adsorbents used in this study fitted nicely the Langmuir Isotherm Equations.
| Author | : Xiaoyan Yang |
| Publisher | : |
| Total Pages | : 261 |
| Release | : 2001 |
| Genre | : |
| ISBN | : |
Download Experimental and Modelling Studies of Reactive Dyes Adsorption Onto Activated Carbon in a Batch Reactor Book in PDF, ePub and Kindle
| Author | : Ervin Orlandini |
| Publisher | : Routledge |
| Total Pages | : 299 |
| Release | : 2018-12-19 |
| Genre | : Science |
| ISBN | : 1351425293 |
Download Pesticide Removal by Combined Ozonation and Granular Activated Carbon Filtration Book in PDF, ePub and Kindle
This research aimed to identify and understand mechanisms thar underlie the beneficial effect of ozonation on removal of pesticides and other micropollutants by Granular Activated Carbon (GAC) filtration. This allows optimization of the combination of these two processes, termed Biological Activated Carbon filtration. The study concluded that ozonation significantly improves removal of atrazine by GAC filtration not only due to the wellknown effect of oxidation of atrazine, but also due to the effect of partical oxidation of Background Organic Matter (BOM) present in water. Ozone-induced oxidation of BOM was found to improve adsorption of atrazine in GAC filters. Biodegradation of atrazine in these filters wasnot demonstrated. Higher GAC's adsorption capacity for atrazine and faster atrazine's mass transfer in filters with ozonated rather than non-ozonated influent were explained as due to ozonated BOM. Both can be attributed to enhanced biodegradability and reduced adsorbsbility of partially ozidated BOM compounds, resulting in their increased biodegradation and decreased adsorption in GAC filters.
