信阳师范学院学报（自然科学版）
信暘師範學院學報（自然科學版）
신양사범학원학보（자연과학판）
JOURNAL OF XINYANG NORMAL UNIVERSITY(NATURAL SCIENCE EDITION)
2013年
4期
555-558
,共4页
王建旭%牛振强%徐航
王建旭%牛振彊%徐航
왕건욱%우진강%서항
Fenton试剂%活性黑5%动力学%褪色反应速率常数
Fenton試劑%活性黑5%動力學%褪色反應速率常數
Fenton시제%활성흑5%동역학%퇴색반응속솔상수
Fenton reagent%reactive black 5%kinetics%decolorizing reaction rate constant
利用在线分光光度法对Fenton试剂降解活性黑5模拟废水进行褪色行为研究，考察了FeSO4初始浓度、H2 O2初始浓度、pH值、反应温度等因素对活性黑5褪色过程的影响规律．结果表明，Fenton氧化过程分为两个拟一级动力学过程，反应前期褪色速率常数（ k1）和反应后期褪色速率常数（ k2）相差约5倍．增大Fe2＋的初始浓度和体系温度能够增加k1和去除率，且k1与Fe2＋初始浓度线性相关，反应活化能为3．451 kJ/mol；H2 O2初始浓度和pH值存在最佳值，分别为2．118 mmol/L和3．
利用在線分光光度法對Fenton試劑降解活性黑5模擬廢水進行褪色行為研究，攷察瞭FeSO4初始濃度、H2 O2初始濃度、pH值、反應溫度等因素對活性黑5褪色過程的影響規律．結果錶明，Fenton氧化過程分為兩箇擬一級動力學過程，反應前期褪色速率常數（ k1）和反應後期褪色速率常數（ k2）相差約5倍．增大Fe2＋的初始濃度和體繫溫度能夠增加k1和去除率，且k1與Fe2＋初始濃度線性相關，反應活化能為3．451 kJ/mol；H2 O2初始濃度和pH值存在最佳值，分彆為2．118 mmol/L和3．
이용재선분광광도법대Fenton시제강해활성흑5모의폐수진행퇴색행위연구，고찰료FeSO4초시농도、H2 O2초시농도、pH치、반응온도등인소대활성흑5퇴색과정적영향규률．결과표명，Fenton양화과정분위량개의일급동역학과정，반응전기퇴색속솔상수（ k1）화반응후기퇴색속솔상수（ k2）상차약5배．증대Fe2＋적초시농도화체계온도능구증가k1화거제솔，차k1여Fe2＋초시농도선성상관，반응활화능위3．451 kJ/mol；H2 O2초시농도화pH치존재최가치，분별위2．118 mmol/L화3．
Fenton reagent was employed to treat and decolorize the wastewater of reactive black 5 by on-line spec-trophotometry .The effects of FeSO 4 concentration、H2 O2 concentration、pH、and temperature on the discoloration of RB-5 were investigated .The results showed that there were two steps during Fenton oxidize process , and they all followed pseudo first order kinetics in the first region and second region .Decolorizing reaction rate constant in the first region (k1) and removal efficiency were increased by the rise of FeSO 4 concentration and temperature.Initial FeSO4 concen-tration against k is linear correlation and the reaction activation energy is 3.451 kJ/mol.The optimum initial H2 O2 con-centration and pH are 2.118 mmol/L and 3, respectively.
