Separation and determination of mineral, animal and vegetable oils in water with the use of molecular sieve 5A

Uchiyama, Mitsuru

doi:10.1016/0043-1354(78)90116-1

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…6,7 However, most of the research with these materials has focused in the removal or adsorption of large molecules such as hormones, cyanotoxins and oils. [8][9][10] Nevertheles, investigations on the adsorption behavior and performance of these materials with regard to small molecules such as urea and urine components adsorption have not yet being extensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of granulated activated carbons and carbon molecular sieves for adsorption of urea in urine: A water reclamation approach

Nicolau

Fonseca

Cabrera

et al. 2012

42nd International Conference on Environmental Systems

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Reclamation of wastewater has become an important issue mainly due to the increasing demand for existing water sources. Thus, finding ways to effectively recycle wastewater, including human waste obtain water is imperative. Therefore, in this research we investigate the adsorption capacity of activated carbons and carbon molecular sieves for the adsorption of urea from urine wastewater.Granulated activated carbons (GAC's), as well as carbon molecular sieves (CMS's), are commonly used in such applications owing to their large adsorption capacity for organics and other non-polar compounds. GAC samples were oxidized with a strong acid procedure and evaluated for both urea and urine adsorption. Three different CMS's were also evaluated as urea/urine adsorbents. The materials were evaluated by the construction of time dependent adsorption batch experiments to test the adsorption capacity of the materials. Scanning electron microscopy (SEM) images were also taken to account for the morphological appearance of the materials used in this study.This research revealed an enhanced urea adsorption capacity for the carbon molecular sieves. On the other hand, the oxidized GAC revealed an improved adsorption capacity for the total dissolved organic carbon present in urine samples. This research is pertinent to water reclamation strategies in extreme environments such as space exploration and developing countries where access to improved clean water is limited.

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