摘要
采用硫铁矿烧渣协同Fe2+催化H2O2的类Fenton法深度处理维生素C制药废水,通过正交实验考察FeSO4投加量、H2O2投加量、搅拌反应时间、曝气时间等因素对低浓度难降解有机物去除的影响程度,并结合单因素实验确定最佳反应条件。结果表明:(1)正交实验中,各因素对催化氧化反应效果的影响程度依次为H2O2投加量>搅拌反应时间>曝气时间>FeSO4投加量;(2)单因素实验中,最佳反应条件为烧渣投加量10g/L、H2O2投加量4.9mmol/L、FeSO4投加量3.9mmol/L、搅拌反应时间20min、曝气时间20min、絮凝沉淀部分聚丙烯酰胺(PAM)投加量5mg/L。在此条件下,COD去除率最高达63.21%。
A laboratory scale study was carried out to investigate the effect of FeSO4, H2O2, stirring time and aeration time on the advanced treatment of vitamin C （VC） pharmaceutical wastewater by Fenton-like method cata- lyzed by pyrites cinder with Fe^2＋. Orthogonal test combined with single factor test was conducted to determine the optimal condition. The results showed that dosage of H2O2 played a significant role in the COD removal, then reaction time and aeration time,while the effect of FeSO4 dosage was minor. With pyrite cinder of 10 g/L and PAM dosage in flocculation deposition process of 5 mg/L, the COD removal reached 63.21% under the optimal conditions： H2O2 of 4.9 mmol/L,FeSO4 of 3.9 mmol/L,stirring time of 20 min,aeration time of 20 min.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2015年第5期17-21,共5页
Environmental Pollution & Control
基金
国家水体污染控制与治理科技重大专项(No.2012ZX07204-001-002)
作者简介
第一作者：党卫星，男，1989年生，硕士研究生，研究方向为水污染控制理论与技术。
通讯作者。
