7 ก.พ. 2561

บทความวิจัยที่ตีพิมพ์ในรายงานสืบเนื่องจากการประชุมวิชาการระดับนานาชาติ

Proceedings of the Pure and Applied Chemistry International Conference 2018 (PACCON 2018)

EE50-53

The Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn

The one of environmental pollutions has centered on pigment-containing wastewaters from various industrial sources. The potential treatment technique for dye removal is adsorption using local agricultural wastes as raw materials to produce activated carbon. In this study, the activated carbon from Salak (cultivars: Sumalee) seeds was prepared from the pyrolysis (400 °C, 1 h), activated with 50% v/v H3PO4 at the impregnation ratio is 1:3 and activated temperature of 500°C for 1 h. The obtained activated carbon had the high iodine number of 843.46±49.01 mg/g, while the methylene blue index (12.40±0.04 mg/g) was very low because the activated carbon was microporous material. The effects of contact time initial concentration and adsorbent dosage were investigated in the batch testing. It can be concluded that the activated carbon and dye solution ratio of 30:1 (mg/ml) has the highest dye removal capacity for all initial concentration. Thus, this study demonstrated the potential of using Salak (Sumalee) seeds as cheap and efficient raw materials to produce activated carbon for dye removal from wastewaters.

PACCON18_ProceedingBK_Fullpaper