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Title: Chitosan supported onto agave fiber'postconsumer HDPE composites for Cr(VI) adsorption
Author: García-García, G.
Jha, V.
Li, P.K.T.
Couser, W.G.
Erk, T.
Zakharova, E.
Segantini, L.
Shay, P.
Riella, M.C.
Osafo, C.
Dupuis, S.
Kernahan, C.
Issue Date: 2015
Abstract: The increased burden of CKD in disadavantaged populations is due to both global factors and population-specific issues. Low socioeconomic status and poor access to care contribute to health care disparities, and exacerbate the negative effects of genetic or biologic predisposition. Provision of appropriate renal care to these populations requires a twopronged approach: expanding the reach of dialysis through development of low-cost alternatives that can be practiced in remote locations, and implementation and evaluation of cost-effective prevention strategies. Kidney transplantation should be promoted by expanding deceased donor transplant programs and use of inexpensive, generic immunosuppressive drugs. The message ofWKD 2015 is that a concerted attackagainst the diseases that lead to ESRD, by increasing community outreach, better education, improved economic opportunity, and access to preventive medicine for those at highest risk, could end the unacceptable relationship between CKD and disadvantage in these communities. " 2014 Wolters Kluwer Health, Inc. All rights reserved.",,,,,,"10.1097/TP.0000000000000558",,,"","",,,,,,"1",,"Transplantation",,"13
MEDLINE",,,,"Index Medicus;Developing Countries/ec [Economics];Global Health/ec [Economics];Health Care Costs;Health Services Accessibility/ec [Economics];Healthcare Disparities/ec [Economics];Healthcare Disparities/eh [Ethnology];Humans;Infant, Low Birth Weight;Infant, Newborn;Minority Groups;Poverty;Renal Insufficiency, Chronic/di [Diagnosis];Renal Insufficiency, Chronic/ec [Economics];Renal Insufficiency, Chronic/eh [Ethnology];Renal Insufficiency, Chronic/mo [Mortality];Renal Insufficiency, Chronic/th [Therapy];Renal Replacement Therapy/ec [Economics];Risk Factors;Treatment Outcome;Vulnerable Populations/eh [Ethnology];Vulnerable Populations",,,,,,,,"Chronic kidney disease in disadvantaged populations",,"Review" "41808","123456789/35008",,"Pérez-Fonseca, A.A., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Jalisco, Mexico; Gómez, C., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Jalisco, Mexico; Dávila, H., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Jalisco, Mexico; González-Núñez, R., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Jalisco, Mexico; Robledo-Ortíz, J.R., Departamento de Madera, Celulosa y Papel, Universidad de Guadalajara, 45510 Jalisco, Mexico; Vázquez-Lepe, M.O., CINVESTAV-IPN, 76230 Querétaro, Mexico; Herrera-Gómez, A., CINVESTAV-IPN, 76230 Querétaro, Mexico",,"Perez-Fonseca, A.A.
Gomez, C.
Davila, H.
Gonzalez-Nunez, R.
Robledo-Ortiz, J.R.
Vazquez-Lepe, M.O.
Herrera-Gomez, A.",,"2012",,"Composites of high-density polyethylene and agave fibers coated with chitosan were used as adsorbent for Cr(VI). The adsorptions were made in batch and continuous systems. Different kinetic models were used to characterize the batch adsorption and to determine the adsorption capacity of the compound. To test the composite regeneration/reuse capability, the chromium content in the composite material was desorbed using different acids. The coated composites were characterized by scanning electron microscopy (SEM), attenuated total reflectance infrared spectroscopy (ATR-IR), and X-ray photoelectric spectroscopy (XPS). From the results it was found that the composite has a maximum adsorption capacity of 200 mg Cr(VI)/g of chitosan at pH 4. Sulfuric acid proved to be a good desorbent of Cr(VI), allowing the material to be reused while keeping its adsorption properties. Finally, the results showed that the continuous system has higher sorption capacity than the batch system; it was determined that the system needs a minimum retention time of 20 min in order to use the material in the treatment of contaminated effluents. " 2011 American Chemical Society.
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