EFFICIENCY OF RICE (Oryza sativa) HUSK BIOCHAR IN THE ADSORPTION OF CADMIUM FROM AQUEOUS SOLUTION
| dc.contributor.author | MIKKA GIDDONAH RIVERA LORA | |
| dc.date.accessioned | 2026-05-25T00:11:35Z | |
| dc.date.available | 2026-05-25T00:11:35Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Backgound: Water pollution becomes more serious because of the development of many industries. Heavy metals are one of the major contributors of water pollution. Heavy metal contaminated water can cause risk and adverse effect on human health. Adsorption is an effective technique in removing water contaminants. Biochar derived from rice husk was used as an adsorbent in removing cadmium from aqueous solution. Methods: Batch adsorption experiments were conductes. The adsorption parameters (pH, initial metal concentration and contact) were optimized. The solutions were shaken in an automatic shaker with a speed of 200 rpm. The biochar residues were digested using US EPA Method 3050B. Concentration of cadmium adsorbed in the biochar was determined using Microwave-plasma atomic emission spectroscopy. Results: The highest removal capacity of cadmium from aqueous solution reached 57.63% and was observed at pH 8, initial metal concentration of 30.0 mg L-1 and 6 h of contact time. Kinetic study showed that the adsorption process was described by pseudo-second order model. Adsorption isotherm study showed that the adsorption both fit to Langmuir and Freundlich model. Conclusions: Result showed that rice husk biochar can be an effective adsorbent in removing cadmium from water. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/1366 | |
| dc.language.iso | en_US | |
| dc.relation.supervisor | NERISSA C. RAMOS, M. Sc. | |
| dc.title | EFFICIENCY OF RICE (Oryza sativa) HUSK BIOCHAR IN THE ADSORPTION OF CADMIUM FROM AQUEOUS SOLUTION | |
| dc.type | Thesis |