Pre-treatment of high-strength acid dye wastewater with internal electrolysis-Fenton process
It was studied that the performance of the internal electrolysis-Fenton process in pre-treating of the high-strength refractory acid dye wastewater. The sequencing comparative experiments were carried out and it was determined that the internal electrolysis-Fenton process was superior to the traditional one in terms of treatment effect. Optimal conditions were attained by experimental conditions changing. The results show that under optimal conditions pH=2, the volume ratio of Fe/GAC is 1 and the reaction time is 30 min. The dosage of H2O2 is 4‰ by continuously dosing, its pH is 3 and the reaction time 30 min. the COD removal rate could be more than 75％ and the BOD5/COD ratio could be increased from 0.08 to 0.46. This process showed highly efficient in organic removal and biodegradability improving in pre-treating high-strength dye wastewater.
internal electrolysis-Fenton process acid dye wastewater pre-treatment biodegradibility BOD5/COD
Zhanli Chen Jian Zhan Zhenzhong Liu
School of Civil Engineering and ArchitectureNanchang UniversityNanchang, China School of Civil Engineering and Architecture Nanchang University Nanchang, China
国际会议
三亚
英文
472-476
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）