新型铁碳微电解填料对2,4-二硝基苯酚的降解实验  

Degradation Experiment of 2,4-Dinitropheno by New-Type Fe-C Micro-Electrolysis Packing

作　　者：曹飞[1] 张波[1] 吴春笃[1,2] 蒋霞[1] 陈闪闪[1] 

机构地区：[1]江苏大学环境与安全工程学院,江苏镇江212013 [2]扬州职业大学,江苏扬州225009

出　　处：《水处理技术》2016年第4期25-28,33,共5页Technology of Water Treatment

基　　金："十二五"国家科技支撑计划项目(2014BAC08B01);江苏省博士后基金资助项目(1301064C)

摘　　要：为了考察新型铁碳微电解填料对2,4-二硝基苯酚(2,4-DNP)的降解影响,分别通过模拟不同pH、溶解氧含量、温度、电导率条件,研究2,4-DNP的降解变化规律;同时通过电化学分析和紫外扫描方法对铁碳微电解填料降解2,4-DNP的机理进行初探。结果表明,pH分别为3、7、11时,2,4-DNP降解率分别为97.7%、74.1%、21.2%;新型铁碳微电解填料在不曝气时,其降解率能够达到92.4%;反应可常温下进行,加入电解质能够明显提高对2,4-DNP的降解效率。新型铁碳微电解填料对2,4-DNP的降解过程还包括电化学反应,经填料处理过后的废水,减少了对微生物的抑制作用,有利于后续生化处理。To study the degradation effect of 2,4-dinitropheno （2,4-DNP） by a new -type Fe-C micro-electrolysis packing, the degradation rules of 2,4-DNP under different conditions, such as pH, dissolved oxygen, temperature, electrical conductivity were studied. At the same time, the preliminary mechanism of 2,4-DNPdegradation by new -type Fe-C micro-electrolysis packing through the electrochemical analysis and ultraviolet scanning was investigated. The experiment results showed that pH of 3, 7, 11, the degradation rate of 2,4-DNP was 97.7%, 74.1%, 21.2%, respectively. The degradation rate can reach 92.4%when new -type Fe-C micro-electrolysis packing without aeration; The reaction took placed at room temperature, adding electrolyte can obviously increase the degradation efficiency of 2,4-DNP.The degradation process also includes electrochemical reaction. Aider the treatment, the inhibition effect i on microorganism was decreased, which was beneficial to the subsequent biochemical treatment.

关 键 词：铁碳微电解 填料 2 4-二硝基苯酚 降解 机理 

分 类 号：X783.1[环境科学与工程—环境工程]