[PDF] Top 20 Derecho y políticas ambientales en Cataluña (Segundo semestre 2017)

... AO7 dye to adsorb was ...against dye ions for active adsorption sites in order to become the adsorbent, and therefore, reduce the efficiency ...the dye concentration of 30 mg/L is selected as the ... See full document

... In the present study, Batch adsorption experiments of hazardous cadmium, Cd(II), ions onto low-cost Dodonaeae Viscose Legs (DVL) and processes were conducted with respect to contact time, solution pH, adsorbent dosage, ... See full document

... obtained from biomass waste and industrial by product since they required little processing and abundant in ...nature. From literature survey, it is revealed that a number of biological adsorbents have been ... See full document

... Adsorptive removal of Aniline from aqueous solutions using Prunus ...analyzed using Langmuir, Freundlich and Temkin ...other isotherms. Synthesis of aniline absorption on ... See full document

... the dye industry and it contaminated during the process and it is discharged as wastewater which contains lot of pollutants like dyes etc(3, ...Therefore, dye industry contributes in water pollution by ... See full document

... The study also showed that both CR and AY 36 were removed by absorbent with lower pH levels. This was because CR and AY 36 were both anionic dyes, they reacted accordingly with their positively charged surface of the ... See full document

... with acid dye at different temperatures (60, 80 and 90 ° C), considering that these values are in the typical activation energy range for physical ... See full document

... activated rice husk was used as ...of acid yellow 17 dye solution. The pH value was varied from pH 2 to 12 for a constant adsorbent dosage of ...of acid yellow 17 solution. The ... See full document

... Effect of pH: PH has been introduced as the important effective parameter on aniline adsorption process [1].The effect of different pH (3 to 11) in absorption of aniline on Almond in contact time of 60 minutes was shown ... See full document

... and thermodynamics of adsorption process For this stage of the study, all optimized parameters obtained from previous stages such as pH, contact time, adsorbent dosage and dye concentration kept ... See full document

... The ∆G and ∆S values at different temperature ( 298, 308 and 318) K given in table (7).From the table (7), It's clear that ∆H has the negative values, which indicates the ideal and the maximum value ... See full document

... Adsorption has been established as an important and economically practical treatment technology for removing phosphate ions from water and wastewater. Activated carbon is the most common adsorbent used for this ... See full document

... acidic solutions, and hence, produces Fe 2+ ...originating from the NZVI can form ferrous hydroxide precipitates on the surface of NZVI, occupying the reactive sites, and hence, hindering the reaction ... See full document

... green from single and mixed dyes aqueous solutions by an adsorbent prepared from acid-treated Parkia biglobosa ...characterized using different techniques, and the adsorption was ... See full document

... of Modified Gambir Adsorbent, MGA The gambir was purchased from Medan, ...chemically modified gambir adsorbent (MGA) was produced based on the modification of Stiasny reation ...The modified ... See full document

... Therefore, removal of such dyes from water bodies may be considered an interesting and important research ...that orange peel can be used as a suitable adsorbent for the removal of malachite ... See full document

... Ion exchangers are now extensively used in heterogeneous catalysis. During the catalytic reaction, especially when catalytic degradation of dyes present in effluents of various industries is carried out, knowledge of the ... See full document

... chromium from wastewater or decreasing its chromium (VI) content up to the permitted levels is important due to its non-biodegradation, bioaccumulation, and cancer-causing and toxic ...(VI) from ... See full document

... for dye removal from wastewater such as electrochemical methods (4,5), oxidation processes (6), biological degradation (9), UV radiation (8), advanced oxidation processes (8), and adsorption ... See full document

... dyes removal from wastewater such as modifiying the palm oil empty fruit bunch with silylation by trimethylchlorosilane (TMCS) and diethyldichlorosilane (DEDCS) (Rattanawong et ...research using ... See full document