000			02565nam a22002897a 4500
003			OSt
005			20241108161554.0
008			241108b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH RB 37 _bG46 2024
100			_aGeoman, Joanna Marie A. _eauthor
245			_aDesiccated Coconut ( Cocos Nucifera) waste: _ban adsorbent for Rhodamine B Dye in aqueous solution/ _cJoanna Marie A. Geoman, Judy Lyn C. Sabordo, and Julia S. Ugerio .--
260			_aManila: _bTechnological University of the Philippines, _c2024.
300			_aviii, 107pages: _c29cm. _e+1 CD-ROM (4 3/4in.)
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aThesis (undergraduate)
502			_aCollege of Science .-- _bBachelor of Applied Science in Laboratory Technology: _cTechnological University of the Philippines, _d2024.
504			_aIncludes bibliography.
520			_aSynthetic dyes, such as the Rhodamine B (RhB) dye found in wastewater, can be toxic to humans and aquatic life; treating it can help mitigate its hazardous effects. This study assessed the efficacy of desiccated coconut waste (DCW) powder, an agricultural waste product derived from matured coconut, as an adsorbent precursor for removing synthetic dyes using a batch adsorption process. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and an energy dispersive X-ray spectrometer (EDX) were used to characterize the adsorbent before and after adsorption. Various parameters were optimized, and the adsorption kinetic and isotherm models were evaluated. The results showed that the optimal conditions for RhB adsorption were a dosage of 2.0 grams, an initial dye concentration of 40 mg/L, and an equilibrium time of 20 minutes. RhB had an equilibrium removal rate of 82.16% with a qe of 0.341 mg/g. The adsorption of RhB was found to follow a pseudo-second-order kinetic model at a rate of 2.57 x 10-2 g/mg·min. Based on the calculations, the Freundlich model describes the best adsorptive removal of RhB. The model suggests that the adsorption was multilayer and that the DCW has heterogeneous adsorption sites with an equilibrium constant of 0.0153 L/mg. As a result, this study proved that using DCW as an adsorbent for wastewater treatment is practical, cost-effective, and efficient.
650			_aWaste water treatment
650			_aDye removal
700			_aSabordo, Judy Lyn C. _eauthor
700			_aUgerio, Julia S. _eauthor
942			_2lcc _cBTH COS _n0
999			_c29045 _d29045