摘要
研究了高铁酸钾(K2FeO4)及高铁酸钾与次氯酸钠(NaClO)联用氧化分解废水中苯酚的效果,考察了K2FeO4和NaClO投加量、氧化反应时间和pH对苯酚和COD Cr去除率的影响。结果表明:K2FeO4与NaClO联用处理苯酚废水存在明显的协同作用,当初始苯酚质量浓度为50 mg/L,pH为5左右,氧化反应时间为30 min,K2FeO4、NaClO投加量分别为1.5、0.3 g/L时,苯酚和COD Cr去除率分别高达98%和68%以上,与单独使用K2FeO4相比,苯酚和COD Cr去除率分别增加约5%和25%。K2FeO4与NaClO联用对苯酚的降解过程符合一级反应动力学模型。
The efficacy of using K2FeO4 and K2FeO4 combined with NaCIO for the oxidative decomposition of phenol in wastewater has been studied. The effects of K2FeO4 and NaC10 dosages, oxidation time and pH on removing rates of phenol and CODCr are investigated. The results show that there has been obvious synergy in using KzFeO4 combined with NaC10 process. The removing rates of phenol and CODCr could achieve above 98% and 68%, respectively under the conditions that the concentration of phenol is 50 mg/L, pH 5, reaction time 30 min, and dosages of K2FeO4 and NaC10 are 1.5 g/L and 0.3 g/L, respectively. Compared with the single use of K2FeO4, the removing rates of phenol and CODCr have an increase of 5% and 25%, respectively. The degradation course of phenol by using K2FeO4 combined with NaC10 complies with the first order reaction kinetic model.
出处
《工业水处理》
CAS
CSCD
北大核心
2013年第10期27-29,33,共4页
Industrial Water Treatment
基金
国家重大水专项课题(2009ZX07212-001-03)
国家自然科学基金项目(51078141)
关键词
高铁酸钾
次氯酸钠
苯酚废水
potassium ferrate （K2FeO4）
sodium hypochlorite （NaC10）
phenol-containing wastewater
