摘要
以RuO2/Ti为阳极,研究了电化学氧化法对黄连素制药废水的处理效果。通过比较在KCl与K2SO42种支持电解质体系中的处理效果,同时考察了电流强度、初始pH、电解质浓度和电极间距等因素对废水中黄连素及COD去除率的影响,明确了电化学原位生成活性氯是黄连素降解的主要原因;确定了电流强度、pH、电解质浓度和电极间距等最优工艺条件,取得了黄连素和COD的去除率分别高达95%和60%以上的实验结果,以及电化学处理黄连素废水的能耗,为黄连素制药废水电化学处理的工业化应用提供了科学依据。
Electrochemical treatment of simulated berberine wastewater with RuO2/Ti electrode as anode was investigated.Firstly,the treatment efficiencies were compared by using KCl and K2SO4 as supporting electrolytes separately,and then the effects of current intensity,initial pH,electrolyte concentration and electrode distance on the degradation of berberine and COD were studied in detail.The results showed that the removal efficiencies were much better in KCl system than K2SO4 system and the mechanism of berberine degradation was related to the electro-generation of active chlorine.Meanwhile,the optimal experimental conditions were obtained with the berberine and COD removal efficiencies reaching above 95% and 60%,respectively.Eventually,the energy costs were analyzed.Above all,it was necessary to provide some scientific basis for the practical application on the treatment of berberine pharmaceutical wastewater.
出处
《环境工程学报》
CAS
CSCD
北大核心
2011年第5期987-991,共5页
Chinese Journal of Environmental Engineering
基金
国家"水体污染控制与治理"科技重大专项(2008ZX07208-003)
中国博士后科学基金(20100470399)
中国环境科学研究院中央级公益性科研院所基本科研业务专项(2010KYYW15)
关键词
黄连素
制药废水
电化学
RuO2/Ti阳极
活性氯
berberine
pharmaceutical wastewater
electrochemical process
RuO2/Ti anode
active chlorine
