Chitosan-Starch Forward Osmosis Membrane for Desalination of Brackish Water

Saiful, Saiful; Rahmah, Zuliana; Ajrina, Maurisa; Marlina, Marlina; Rahmi, Rahmi

doi:10.31788/rjc.2020.1345664

Cited by 6 publications

(9 citation statements)

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“…The membrane prepared in this research was based on the optimum condition in our previously published report [ 18 ]. During the preparation of starch paste, prior to the making of chitosan/starch mixture, the gelatinization process caused the starch granule crystals to absorb water, swell, then break, and dissolve in water.…”

Section: Resultsmentioning

confidence: 99%

“…The FO membranes appeared yellowish, thin, and transparent, with strong physical characteristics, a dense porous structure, and a good FO performance [ 18 ]. The chitosan/starch FO membrane was revealed to have better characteristics and performance, compared to that made from neat chitosan.…”

Section: Resultsmentioning

confidence: 99%

“…Once dried, the membrane was removed from the mold, washed with 1% ( w / v ) NaOH, and rinsed with distilled water. Finally, the membranes were air-dried at room temperature [ 18 ]. The membrane was then assembled into a filter water bag and tested for its performance in FO.…”

Section: Methodsmentioning

confidence: 99%

“…However, this cyanide can be easily removed by washing, using water repeatedly. The D. hispida -based starch can be used for a variety of applications, including membrane preparation [ 18 ]. The membranes made from a mixture of natural materials can be used as an alternative, environment-friendly material with a great potential production and economic value.…”

Section: Introductionmentioning

confidence: 99%

“…The FO sheet was further applied to manufacture drinking water filtration bags. Membrane modification was done by referring to previous studies [ 18 ]. The modified membrane was applied to the drinking water bags made of polypropylene (PP) plastic and aluminum foil plastic.…”

Section: Introductionmentioning

confidence: 99%

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Development of Chitosan/Starch-Based Forward Osmosis Water Filtration Bags for Emergency Water Supply

et al. 2020

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A forward osmosis (FO) membrane was developed from a mixture of chitosan and Dioscorea hispida starch, cross-linked using glutaraldehyde. The cross-linked chitosan/starch membrane was revealed to have high mechanical properties with an asymmetric structure. The prepared membrane’s performance was investigated as an FO filter assembled in a polypropylene water filter bag and aluminum foil plastic. In order to study the FO process, brackish water was used as a feed solution, drawn using three types of solution (fructose, sucrose, and fructose/sucrose mixture, each with 3 M concentration). The maximum water flux (5.75 L/m2 h) was achieved using 3 M sucrose. The cross-linked membrane restrained the ions in the feed with a rejection factor value close to 100%. The water quality parameters were evaluated for the physical, chemical, and biological criteria, such as pH, salinity, conductivity, total dissolved solids (TDS), heavy metals, and Escherichia coli content. The water quality parameters for the FO-processed water met that set by the World Health Organization for drinking water. FO filter bags with cross-linked chitosan/starch membranes can be an option to produce drinking water during an emergency.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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