Azmi, Lyana Sabrina
(2022)
Hydrothermal Carbonization Of Coconut Husk As An Adsorbent For The Removal Of Chloramphenicol Compounds.
Project Report.
Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia.
(Submitted)
Abstract
The contamination of water caused by the extensive use of pharmaceutical components has become a concerning matter as it brings about a lot of complications that are threatening environmental safety and public health. In this case, the improper treatment of Chloramphenicol (CAP) compounds prior to its discharge has become a serious issue, as the buildup of CAP may become a serious threat to the public and aquatic lives. This study suggests the utilization of coconut husk-derived activated carbon (CHAC) prepared via hydrothermal carbonization and ZnCl2 activation for the effective removal of CAP compounds from a water mixture. The efficiency of the prepared CHAC were assesed at different key parameters such as solution pH (3, 5, 7, 9 and 11) and initial concentrations of CAP solution (100 mg/L, 200 mg/L, 300 mg/L and 400 mg/L), in which the results exhibit the highest CAP removal of 99.99% at 200 mg/L with an optimum pH of 9. The adsorption of CAP on the surface of CHAC was best defined by the Langmuir isotherm (R2 = 0.9999) which attributes to the monolayer adsorption capacity, qmax of 263.158 mg/g. The adsorption kinetic study also revealed that the adsorption system presented in this study fits pseudo second order (PSO) kinetic model the most. The remarkable CHAC performance on CAP removal corresponds to the BET surface area and pore volume of 740.7451 m2/g and 0.2476 cm3/g, respectively. The findings acquired from this study strongly suggest that CHAC has excellent adsorption performance and properties, and it is also economically feasible due to high adsorption capacity, lower production cost and environmentally friendly.
Actions (login required)
 |
View Item |
