本文選題：有機(jī)廢氣　切入點(diǎn)：苯　出處：《青島科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來大氣污染問題日益受到人們的重視,揮發(fā)性有機(jī)物(VOCs)作為重要的污染源,其控制和治理刻不容緩。本文進(jìn)行了低溫等離子體聯(lián)合生物滴濾降解含苯廢氣的研究工作,為揮發(fā)性廢氣治理提供了技術(shù)指導(dǎo),具有重要的應(yīng)用價(jià)值。對(duì)雙介質(zhì)阻擋和沿面介質(zhì)阻擋兩種放電形式進(jìn)行了對(duì)比,并對(duì)雙介質(zhì)阻擋等離子體放電單元參數(shù)及放電區(qū)域光譜進(jìn)行了分析診斷。研究結(jié)果表明:沿面阻擋放電對(duì)苯的去除率稍高于雙介質(zhì)阻擋放電,但其能量利用效率較低,溫度升高快,不適于長(zhǎng)周期運(yùn)行。雙介質(zhì)阻擋放電反應(yīng)器最優(yōu)反應(yīng)參數(shù):峰值電壓18kV,電極間距5mm。基于實(shí)驗(yàn)室研究結(jié)論,調(diào)研了某石化企業(yè)水處理車間污水池?fù)]發(fā)廢氣組分及含量。針對(duì)該污水池?fù)]發(fā)廢氣組分多、波動(dòng)大、含雜質(zhì)多的特點(diǎn),進(jìn)行雙介質(zhì)阻擋放電設(shè)備治理混合VOCs工業(yè)試驗(yàn),考察了停留時(shí)間及多組放電單元間距對(duì)VOCs降解效率的影響,并對(duì)降解產(chǎn)物進(jìn)行分析。研究發(fā)現(xiàn),隨著停留時(shí)間和放電單元間距的增加,廢氣去除率均升高,綜合去除負(fù)荷和效率等因素,停留時(shí)間選定為0.5s,放電單元間距為0.4m較為適宜。對(duì)降解產(chǎn)物進(jìn)行色譜分析表明,經(jīng)等離子體降解后一部分有機(jī)物轉(zhuǎn)化為更易溶于水的物質(zhì),如醇、酯、醛等,提高了廢氣的可生化性。參數(shù)優(yōu)化后的雙介質(zhì)阻擋放電對(duì)濃度為600mg/m~3廢氣的去除率達(dá)到85%。為進(jìn)一步提高處理效果,實(shí)現(xiàn)有機(jī)廢氣的達(dá)標(biāo)排放,進(jìn)行了生物滴濾降解混合VOCs工業(yè)試驗(yàn),并將其作為末端治理手段與等離子體進(jìn)行耦合。結(jié)果表明,生物滴濾塔對(duì)有機(jī)廢氣的處理效率較低,耐沖擊性差。初始濃度高于220mg/m~3時(shí),就不能滿足排放標(biāo)準(zhǔn)120mg/m~3,最高去除率為64.2%。而耦合工藝對(duì)廢氣的去除率達(dá)到95%,廢氣濃度低于1250mg/m~3時(shí),可基本實(shí)現(xiàn)總烴的達(dá)標(biāo)排放。等離子體處理后生成的可溶性副產(chǎn)物更利于生物的降解,耦合工藝中生物滴濾塔降解效率提升了8%左右。
[Abstract]:In recent years, more and more attention has been paid to the problem of air pollution. As an important source of pollution, the control and treatment of VOCs is urgent. In this paper, low temperature plasma combined with biological droplet filtration for the degradation of benzene waste gas is studied. It provides technical guidance for the treatment of volatile waste gas and has important application value. The two discharge modes of double dielectric barrier and surface dielectric barrier are compared. The results show that the removal rate of benzene by surface barrier discharge is slightly higher than that by double dielectric barrier discharge, but its energy utilization efficiency is low. The optimum reaction parameters of double dielectric barrier discharge reactor are: peak voltage 18 kV, electrode spacing 5 mm. The composition and content of volatile waste gas in sewage tank of a petrochemical enterprise water treatment plant were investigated. In view of the characteristics of large volatile waste gas component, large fluctuation and high impurity in the sewage tank, the mixed VOCs industrial test was carried out with dual dielectric barrier discharge equipment. The effects of residence time and multi-group discharge unit spacing on the degradation efficiency of VOCs were investigated, and the degradation products were analyzed. It was found that the removal rate of exhaust gas increased with the increase of residence time and discharge unit spacing. Combined with the removal of load and efficiency factors, the residence time is 0.5 s and the discharge unit spacing is 0.4 m. Chromatographic analysis of the degradation products shows that some organic compounds are converted into more water-soluble substances, such as alcohols, after plasma degradation. The biodegradability of waste gas was improved by ester, aldehydes, etc. The removal rate of the waste gas with a concentration of 600 mg / m ~ (-3) was up to 85mg / m ~ (-3) by the optimized double dielectric barrier discharge. In order to further improve the treatment effect and realize the standard discharge of organic waste gas, The industrial experiment of biotrickling degradation of mixed VOCs was carried out, and it was used as a terminal treatment method to couple with plasma. The results showed that the treatment efficiency and impact resistance of organic waste gas were lower and the initial concentration was higher than 220 mg / m ~ 3:00 in the biofilter. It can't meet the emission standard of 120 mg / mm3, the highest removal rate is 64.2%, and the coupling process can remove 95% of the exhaust gas, and the concentration of the waste gas is less than 1 250 mg / m ~ 3:00. The soluble by-products produced by plasma treatment are more favorable for biodegradation, and the degradation efficiency of the bio-trickle filter in the coupling process is increased by about 8%.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：X701

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李勤勤;張志娟;李楊;龔道程;高潔;張春林;王伯光;;石油煉化無組織VOCs的排放特征及臭氧生成潛力分析[J];中國(guó)環(huán)境科學(xué);2016年05期

2 郭兵兵;劉忠生;王新;王海波;;石化企業(yè)VOCs治理技術(shù)的發(fā)展及應(yīng)用[J];石油化工安全環(huán)保技術(shù);2015年04期

3 普學(xué)偉;邵應(yīng)春;施艷峰;李國(guó)文;;頂空-氣相色譜-質(zhì)譜法測(cè)定水中25種揮發(fā)性有機(jī)物的含量[J];理化檢驗(yàn)(化學(xué)分冊(cè));2015年08期

4 王瓊;巫明娟;;VOCs治理對(duì)石化企業(yè)的影響及應(yīng)對(duì)措施[J];煉油技術(shù)與工程;2015年08期

5 ;我國(guó)有機(jī)廢氣治理行業(yè)2013年發(fā)展綜述[J];中國(guó)環(huán)保產(chǎn)業(yè);2014年10期

6 趙揚(yáng);何璐紅;劉斌杰;;吸收法處理VOCs工業(yè)廢氣的研究進(jìn)展[J];山東化工;2014年05期

7 蔡旺鋒;謝樂;陳益清;尹娟;張旭斌;;生物滴濾塔凈化惡臭氣體研究進(jìn)展[J];安全與環(huán)境學(xué)報(bào);2014年02期

8 李華琴;何覺聰;陳洲洋;黎寶仁;黃倩茹;張?jiān)倮?魏在山;;低溫等離子體-生物法處理硫化氫氣體研究[J];環(huán)境科學(xué);2014年04期

9 姜娟;;常用無機(jī)催化劑載體的性能與應(yīng)用[J];化學(xué)工程與裝備;2013年10期

10 崔星;石建穩(wěn);陳少華;;TiO_2光催化降解氣態(tài)污染物的影響因素研究進(jìn)展[J];化工進(jìn)展;2013年10期

相關(guān)會(huì)議論文 前1條

1 俞志鶴;;VOC對(duì)職業(yè)安全和健康的影響及其檢測(cè)技術(shù)評(píng)述[A];中國(guó)職業(yè)安全健康協(xié)會(huì)2005年學(xué)術(shù)年會(huì)論文集[C];2005年

相關(guān)博士學(xué)位論文 前1條

1 姜楠;沿面—填充床復(fù)合放電等離子體及其協(xié)同催化降解苯的研究[D];大連理工大學(xué);2014年

相關(guān)碩士學(xué)位論文 前5條

1 余利群;介質(zhì)阻擋放電溫度特性及活性物質(zhì)光譜診斷研究[D];浙江大學(xué);2013年

2 葉菱玲;介質(zhì)阻擋放電結(jié)合錳催化劑降解甲苯研究[D];浙江大學(xué);2013年

3 赫潔;大氣污染區(qū)域聯(lián)防聯(lián)控中VOCs的控制研究[D];河北工業(yè)大學(xué);2012年

4 武江波;甲苯光降解及光催化降解的初步研究[D];中國(guó)科學(xué)院研究生院（廣州地球化學(xué)研究所）;2007年

5 謝裕壇;活性炭吸附治理多組分有機(jī)廢氣的研究[D];浙江大學(xué);2002年

，

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