合肥工业大学学报(自然科学版)
閤肥工業大學學報(自然科學版)
합비공업대학학보(자연과학판)
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2014年
8期
976-980
,共5页
复合金属氧化物%催化剂%共沉淀法%湿式催化过氧化氢氧化法%苯酚
複閤金屬氧化物%催化劑%共沉澱法%濕式催化過氧化氫氧化法%苯酚
복합금속양화물%최화제%공침정법%습식최화과양화경양화법%분분
composite metal oxide%catalyst%co-precipitation method%catalytic wet peroxide oxidation (CW-PO)%phenol
文章通过共沉淀法制备了Cu-M n-Zn复合金属氧化物,并通过X-射线衍射仪(XRD )、透射电子显微镜(T EM )对其进行了表征。以合成的Cu-M n-Zn复合金属氧化物作为催化剂,采用湿式催化过氧化氢氧化法(CWPO )催化氧化模拟苯酚废水。进行了单因素条件实验和正交实验,结果表明当模拟苯酚废水初始质量浓度为1000 mg/L 时,较适宜的催化氧化工艺条件为:催化剂投加量为0.5 g/L、20% H2 O2投加量为35 m L/L、反应时间为2 h、反应温度为50℃。此条件下的4次重复实验结果显示,废水中挥发酚的平均去除率高达98.48%,CODCr的平均去除率高达93.77%。
文章通過共沉澱法製備瞭Cu-M n-Zn複閤金屬氧化物,併通過X-射線衍射儀(XRD )、透射電子顯微鏡(T EM )對其進行瞭錶徵。以閤成的Cu-M n-Zn複閤金屬氧化物作為催化劑,採用濕式催化過氧化氫氧化法(CWPO )催化氧化模擬苯酚廢水。進行瞭單因素條件實驗和正交實驗,結果錶明噹模擬苯酚廢水初始質量濃度為1000 mg/L 時,較適宜的催化氧化工藝條件為:催化劑投加量為0.5 g/L、20% H2 O2投加量為35 m L/L、反應時間為2 h、反應溫度為50℃。此條件下的4次重複實驗結果顯示,廢水中揮髮酚的平均去除率高達98.48%,CODCr的平均去除率高達93.77%。
문장통과공침정법제비료Cu-M n-Zn복합금속양화물,병통과X-사선연사의(XRD )、투사전자현미경(T EM )대기진행료표정。이합성적Cu-M n-Zn복합금속양화물작위최화제,채용습식최화과양화경양화법(CWPO )최화양화모의분분폐수。진행료단인소조건실험화정교실험,결과표명당모의분분폐수초시질량농도위1000 mg/L 시,교괄의적최화양화공예조건위:최화제투가량위0.5 g/L、20% H2 O2투가량위35 m L/L、반응시간위2 h、반응온도위50℃。차조건하적4차중복실험결과현시,폐수중휘발분적평균거제솔고체98.48%,CODCr적평균거제솔고체93.77%。
The Cu-Mn-Zn composite oxide catalysts were synthesized via co-precipitation method and character-ized by X-ray powder diffraction (XRD) ,transmission electron microscopy (TEM ) and other modern testing techniques .The as-prepared products were used to treat the simulative phenol-containing wastewater via the catalytic wet peroxide oxidation (CWPO) method .When the initial phenol concentration of wastewater is 1 000 mg/L ,the technological conditions of wastewater treatment were obtained by single factor and orthogo -nal experiments as follows :the amount of catalyst addition was 0.5 g/L ,the amount of 20% H2 O2 addition was 35 mL/L ,the treatment temperature was 50 ℃ and the treatment time was 2 h .The results of four re-peated experiments under the optimized conditions showed that the average degradation rates of COD Cr and volatile phenol were 93.77% and 98.48% ,respectively .