[PDF] Top 20 Desarrollo de un Sistema para el Control de Expedientes en el Área de Recursos Humanos de la UNAN-Managua

... discards from processing of crustacean due to this there is a major problem in the seafood industry so, recycling these by-products is very ...chitin using sodium hydroxide in excess as a reagent and water ... See full document

... synthetic dyes, heavy metals and antibiotics) from different industries [1], ...for wastewater treatment because of its efficiency, simplicity, and cost-effectiveness ... See full document

... Biocarbon prepared from Cynodon dactylon grass used for removal of heavy metals and dyes from wastewater. G. Mathubala has suggested that this medicinal plant used as a ... See full document

... like heavy metals and organic molecules like dyes and ...of wastewater, the adsorption process is a low cost method that uses readily available ...derived from biowaste have being ... See full document

... particularly from heavy metals and minerals in the wastewater is the most serious problem in ...levels. Heavy metals in industrial effluent include nickel, chromium, lead, ... See full document

... the removal of pollutants from ...treating wastewater simultaneously whereas in conventional methods, separate methods or stages of treatments are ...to wastewater treatment resulting in mass ... See full document

... the dyes were obtained from M/s Merck and the stock solutions were prepared in doubly distilled ...obtained from Bharat Heavy Electrical Limited, ...out using Philips SEM 501 Electron ... See full document

... of heavy metals from waste ...for heavy metal removal from ...(II) heavy metal. We are going to test the suitable adsorbent from the indigenous available waste ... See full document

... procured from Zayo- Sigma and Qualikems and used without further ...determined using IA9000 series digital melting point apparatus while conductivity measurements were conducted using HI-2300 ... See full document

... the heavy metals in the respective influents and operational factors such as amount, type and age of the sludge ...the heavy metals in the effluents were lower than in the influents, an ... See full document

... The removal efficiency of the three metals is decreased as concentrations of metals ...three metals would be removed at relatively acceptable rates of efficiency with the exception of ...lower ... See full document

... high removal efficiency, high over flow rates, low detention periods, low operating cost and production of more concentrated ...in heavy metal removal from wastewater is regarded as ... See full document

... The removal efficiency of Cu and Zn from swine wastewater was evaluated as effected by three variables: the hydraulic retention time (HRT) (24, 48, 72 and 96 hours), two different plant species ... See full document

... which are associated with a capillary condensation in bottle-pore shape. The BET surface area was found to be 35±1 m 2 /g and the average pore size 6.5±0.5 nm of clay particles. The total pore volume, for pores with a ... See full document

... of removal of dyes and metals using natural adsorbents such as rice husk, jack fruit leaf powder, coconut shell ...the removal of dyes and ...as dyes and metals ... See full document

... Rhizofilteration is absorption onto roots of the plant organic matter that is in solution. This method is used in treatment of wastewater from industries or water containing heavy metals. The ... See full document

... In the present work, the Fava beans were used as adsorbent material for removal of Pb(II), Cd(II)and Zn(II) ions from aqueous solutions and wastewater samples. Fava beans are one of the oldest plants ... See full document

... of dyes, the conventional biological wastewater treatment processes are not effective in dye wastewater ...colored wastewater is usually treated by physical or chemical methods such as ... See full document

... Literature survey shows that various researchers used various plant materials as cheap adsorbents for removal of heavy metals from wastewater. They are Coffee 7 , Green tea, Algae, ... See full document

... clear from Figures 4-6 that, the adsorption capacity of Pb(II), Cd(II) and Zn(II) ions by Fava beans increases as the contact time increases and reached the equilibrium ...rpm using mechanical shaker for ... See full document