本文關(guān)鍵詞：電解制備高鐵酸鹽在線去除惡臭氣體　出處：《哈爾濱工業(yè)大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 高鐵酸鹽 響應面試驗 H2S 氨氣

【摘要】：隨著城市化和工業(yè)化進程的不斷推進,各個行業(yè)產(chǎn)生的惡臭氣體越來越多。由于生活水平的提高,人們對身處的環(huán)境要求也越來越高。在一些發(fā)達國家,惡臭的事件達到了所有投訴事件的一半以上,并且有不斷上升的趨勢。我國城市化進程不斷加快,但城市規(guī)劃、工業(yè)結(jié)構(gòu)的不盡合理,造成惡臭污染事件頻繁發(fā)生,近幾年來惡臭污染的投訴也越來越多。因此,對惡臭進行防治已經(jīng)刻不容緩。本論文利用一種新型高效的綠色環(huán)保強氧化劑——高鐵酸鹽在線與H2S,氨氣接觸氧化,達到除臭目的。深入探索了影響高鐵酸鹽除臭的各關(guān)鍵因素,并在此基礎(chǔ)上優(yōu)化反應器的運行參數(shù)。本文主要研究工作如下:首先,對高鐵酸鹽生成的關(guān)鍵因進行了研究,結(jié)果表明:分有陰陽兩室電解槽的電解實驗效果要比單室電解槽的電解效果好;溫度為65℃時,高鐵酸鹽的產(chǎn)量雖然比溫度為室溫(大概20℃)時,高鐵酸鹽的產(chǎn)量高,但考慮到經(jīng)濟因素,本論文后續(xù)實驗均采用室溫(20℃);電解液濃度為12mol/L時,高鐵酸鹽的產(chǎn)量最大,電流效率最高;電流密度為5m A/cm2時,高鐵酸鹽的產(chǎn)量最高,電流效率最高。在此實驗的基礎(chǔ)上,探究電解制備高鐵酸鹽在線去除H2S,氨氣的影響因素,結(jié)果表明:運用Design Expert8.0軟件對設(shè)計試驗結(jié)果進行整理分析,經(jīng)回歸擬合后,獲得回歸方程預測模型:Y=96.43+2.52A+1.6B+1.85C+2.24D2 2 2 2+0.04AB-2.11AC-1.81AD?0.45BC+1.76BD-0.55CD-4.73A-5.14B-4.6C-5.84D,其中Y為電解制備高鐵酸鹽去除H2S氣體的去除率;A為電解液濃度;B為電流密度;C為氣體流速;D為氣體濃度;影響電解制備高鐵酸鹽在線去除H2S工藝的因素從達到小依次為:電解液濃度氣體濃度電流密度氣體流速;確定的最優(yōu)工藝條件:電解液濃度為12.5mol/L,電流密度為7.4m A/cm2,氣體流速為100ml/min,氣體濃度為82ppm,H2S的去除率可達到97%以上;運用Design Expert8.0軟件對設(shè)計試驗結(jié)果進行整理分析,經(jīng)回歸擬合后,獲得回歸方程預測模型:Y=70.6+5.23A+2.74B-2.93C-2.5D-0.19AB-2.57AC-0.4AD2 2 2 2+3.26BC+1.08BD-0.57CD-11.71A-8.01B-3.02C?1.32D,其中Y為電解制備高鐵酸鹽去除氨氣氣體的去除率;A為電解液濃度;B為電流密度;C為氣體流速;D為氣體濃度;影響電解制備高鐵酸鹽在線去除氨氣工藝的因素從達到小依次為:電解液濃度氣體濃度電流密度氣體流速;確定的最優(yōu)工藝條件:在電解液濃度為10.6mol/L,電流密度為9m A/cm2,氣體流速為85.7ml/min,氣體濃度為91ppm,氨氣的去除率可達到74.03%。本實驗還進一步研究高鐵酸鹽在線去除硫離子的動力學研究,得到結(jié)果:當Na OH濃度為12mol/L時,S2-的去除率最高;當為5m A/cm2時,S2-的去除率最高;當S2-的初始濃度為0.08g/L時,Na2S的去除率最高;由Arrhenius方程換算得到,高鐵酸鹽氧化去除S2-的反應所需反應活化能Ea為36.617KJ/mol。
[Abstract]:With the development of urbanization and industrialization, more and more stench gases are produced in various industries. Because of the improvement of living standard, people have higher and higher demands on the environment. In some developed countries. The malodorous incident has reached more than half of all complaints, and has a rising trend. China's urbanization process is accelerating, but the urban planning, industrial structure is not reasonable. In recent years, there are more and more complaints about stench pollution. It is urgent to prevent and cure odor. In this paper, a new kind of green and environmental protection strong oxidant-ferrate is used for on-line oxidation with H _ 2S and NH _ 3. To achieve the purpose of deodorization. Deeply explore the key factors affecting ferrate deodorization, and on this basis optimize the operating parameters of the reactor. The main research work is as follows: first. The key factors of ferrate formation are studied. The results show that the effect of electrolytic experiment is better than that of single-chamber electrolytic cell. When the temperature is 65 鈩，

本文編號：1421613