An Effective Process for Removing Organic Compounds from Oily Sludge

Journal of the Korean Chemical Society

Mingming Luan¹  Chunjie Han¹  Guolin Jing¹  Tingting Chen¹ 

关键词: Wet air oxidation;    Catalytic wet air oxidation;    Oily sludge;    COD removal;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Wet air oxidation (WAO) of oily sludge was carried out using Fe3+ as catalyst, placed in a 0.5 L batch autoclave in the temperature range of 250-330 oC. Experiments were conducted to investigate the effects of temperature, the initial COD, reaction time, concentration of catalyst and O2 excess (OE) on the oxidation of the oily sludge. The results showed that in the WAO 88.4% COD was achieved after 9 min reaction at temperature of 330 oC, OE of 0.8 and the initial COD of 20000 mg/L. Temperature was found to have a significant impact on the oxidation of oily sludge. Adding a catalyst significantly improved the COD removal. Homogenous catalyst, Fe3+, showed effective removal for pollutants. COD removal was 99.7% in the catalytic wet air oxidation (CWAO) over Fe3+ catalyst. The results proved that the CWAO was an effective pretreatment method for the oily sludge.

【 授权许可】

Unknown