Title :
Removal of Aromatic Compounds from Wastewater by Biodiesel
Author :
Yu, Fengwen ; Ji, Dengxiang ; Ji, Jianbing
Author_Institution :
Zhejiang Province Key Lab. of Biofuel, Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
Wastewater from chemical plant, refinery and pharmaceutical factory contains many kinds of aromatic compounds. Wastewater including aromatic compounds is hazardous and difficult to be biodegraded. This study concerned the method of extracting aromatic compounds from the wastewater using biodiesel as extracting solvent. Biodiesel as solvent has some special characteristics: its solubility in water is smaller, its flash point is higher, it is nontoxic, and it is biodegradable. In this work, the solute removal rate, COD removal rate and solvent recovery were studied. In addition, the multistage countercurrent extraction experiments were carried out. The results showed that the multistage extraction rates of aniline, nitrobenzene and phenol were greater than 98.67%. The recovery performance of biodiesel was better. Biodiesel is a better extracting solvent for the wastewater containing aromatic compounds.
Keywords :
biodegradable materials; biofuel; chemical industry; filtration; hazards; industrial plants; industrial waste; pharmaceutical industry; solvents (industrial); wastewater; wastewater treatment; COD removal; aniline; aromatic compounds removal; biodegradation; biodiesel; chemical plants; extracting solvents; hazards; multistage countercurrent extraction; nitrobenzene; pharmaceutical factory; phenol; refineries; solute removal rate; solvent recovery; wastewater; Biofuels; Compounds; Educational institutions; Effluents; Solvents; Wastewater; Aniline; Biodiesel extraction; Nitrobenzene; Phenol; Wastewater treatment;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2012 International Conference on
Conference_Location :
Hunan
Print_ISBN :
978-1-4673-0458-0
DOI :
10.1109/CDCIEM.2012.131
