On the utilization of a lignocellulosic waste as an excellent dye remover: Modification, characterization and mechanism analysis

Treatment design and characteristics of a biosorptive decolourization process by a green type sorbent

“…CeO stretching vibrations at 1256 and 1055 cm À1 were other significant bands observed in the fingerprint region. Similar surface functional groups were reported for the natural biomass prepared from sugar beet pulp (Akar et al, 2013a). The spectra of PSP biomass after contacting with RV1 dye indicated significant peak shifts from 1628, 1420 and 1256 cm À1 to 1639, 1425 and 1232 cm À1 , respectively (Fig.…”

Biosorption of dye from textile wastewater effluent onto alkali treated dried sunflower seed hull and design of a batch adsorber

“…The values of K e increased with increase in temperature, 482 which indicates an endothermic nature of the biosorption process 483 [38]. 484 The values of the Gibbs free energy decreased from 8.05 to 485 6.27 kJ/mole when the temperature increased from 292 to 333 K. 486 The positive values of DG suggest that adsorption reaction requires >60 kJ/mol for chemical forces [9]. In this study, DH was found to be 503 8.79 kJ/mol, which revealed that physical forces were involved in Fig.…”

“…8 The textile sector alone consumes about 60% of total dyes produced 9 to paint various fabrics, but 10-15% of dyes used for this purpose 10 comes out through the effluents [1]. Discharging dyes into the 11 hydrosphere have long term adverse effects on the environment as 12 dyes give water undesirable color, reduce sunlight penetration and 13 are objectionable for drinking and other uses [2,3].…”

“…The major advantage of adsorption is use of low cost 34 material especially agricultural based biomass. Various biomass 35 have been studied as potential biosorbents such as saw dust cactus 36 fruit peel [3], chitosan [4], saw dust [6], leaves of Posidonia oceanica 37 [7], oil palm empty fruit bunch fibers [8], sugar beet pulp [9], 38 modified walnut shell [10], Pyracantha coccinea berries [11], rice 39 47 husk ash [12,13], eggshell [14], mango seed kernel powder [15] 40 and jackfruit leaf powder [16]. 41 The objective of this work was to investigate the potential of 42 dried sunflower seed hull (DSSH), an agricultural waste, as an 43 adsorbent in the removal of synthetic reactive and direct dyes, 44 from aqueous waste effluent from the textile industry.…”

Biosorption potential of surface-modified waste sugar beet pulp for the removal of Reactive Yellow 2 (RY2) anionic dye

“…17−21 On the other hand, treatment of sugar beet pulp with NaOH, citric acid, 22 and cetyltrimethyl ammonium bromide 23,24 positively affected its pollutant removal potential. Tetra-n-butylammonium bromide (TBAB) was used for the first time for the chemical modification of this biomass and the developed biomaterial was employed for decolorization.…”