Cellulose Isolation from Tropical Water Hyacinth for Membrane Preparation

Abstract

The presence of water hyacinth (Eichhornia crassipes) as an aquatic plant in many lakes or other basins causes many conservation problems. Many efforts have been devoted to overcome these problems such as by utilization of water hyacinth for energy production, for water treatment, etc. In this research, cellulose was isolated from water hyacinth and further used for membrane preparation. Cellulose isolation was performed by extraction followed by acetylation resulting cellulose diacetate. The membranes were prepared by phase separation methods. The resulting membranes were then characterized by measuring water flux and surface chemistry (by FTIR). In addition, the membranes were examined for filtering humic acid solution as a model of surface water. The results show that cellulose can be isolated from water hyacinth and can further be processed into cellulose diacetate with the yield of 5,6 %. The membrane preparation shows that the concentration of polymer and evaporation time influence the performance of the membrane, where the greater concentration of the cellulose polymer and the longer of the evaporation time results in the denser and the smaller membrane pores.

Removal of nickel ion from electroplating wastewater using double chamber electrodeposition cell (DCEC) reactor partitioned with water hyacinth (Eichhornia crassipes) leaves

“…The transfer of H + still occurs when sulfonated membranes are used as partition, since these membranes are capable of proton transfer [17]. The main functional groups in water hyacinth leaves are C=O, CH 3 , and -COOH [12], and our results suggest that water hyacinth leaves were able to prevent H + transfer from anode to cathode. Furthermore, a high nickel ion concentration in the cathode chamber also optimized the mass transfer.…”

“…The cell wall of water hyacinth leaves contains 20-25% cellulose, 35-40% hemicellulose, and 6-8% lignin [11]. Cellulose isolated from water hyacinth has been used to prepare cellulose diacetate, a membrane precursor, with comparable properties to commercial cellulose diacetate [12].…”

Transparency, moisture barrier property, and performance of the alternative solar cell encapsulants based on PU/PVDC blend reinforced with different types of cellulose nanocrystals

“…This implies that the water hyacinth used in this study contained less amount of cellulose than the MFC. According to the literature, cellulose content in water hyacinths is versatile, ranging from 18 to 43% [32][33][34]. This might be due to the different origins of the biomass and the growth conditions.…”

Synthesis, Characterization of Nano Film from Water Lettuce (Pistia Stratiotes) and Its Antimicrobial Activity

“…For the preparation of membrane, phase separation method was used. The membrane pores obtained were of small size when the evaporation time was more [7].Research was performed for the development purpose of Water Hyacinth shaped nano structures and intonation of film thickness of ZnO. Effect of precursor was studied on various properties like optical, morphological and electrical.…”