LAUSR

Momordica charantia, or more commonly known as bitter gourd, has shown numerous health benefits, mainly decreasing the risk of diabetes. Nevertheless, the use of its inedible parts as an adsorbent toward different pollutive dyes has not been greatly explored through optimization, kinetics, and adsorption equilibrium studies. In this study, the cellulose derived from bitter gourd waste of pith and seeds (CBGW) was extracted and its adsorption characteristics were investigated with Crystal violet (CV) dye. It was found that the adsorption of CV by CBGW favors the pseudosecondorder kinetics. Changing the medium pH has little or no effect toward CV removal, indicating that the CBGW is resilient under various pH conditions. The presence of salts also generally did not very much affect the removal of CV. When compared to many reported adsorbents, CBGW exhibited superior adsorption capacity for CV dye, as seen by its high maximum adsorption capacity of 1,565 mg g–1 (Langmuir) and 2,407 mg g–1 (Sips). Spent CBGW was able to be regenerated and reused, further adding to its value as a possible candidate in wastewater application.