典型化學(xué)氧化技術(shù)對(duì)雙酚類化合物的去除效果及機(jī)理研究
本文選題:氧化工藝 + 雙酚類化合物; 參考:《合肥工業(yè)大學(xué)》2017年碩士論文
【摘要】:雙酚類化合物為典型的內(nèi)分泌干擾物。由于其使用量巨大,土壤、水體、空氣粉塵等環(huán)境中頻繁檢出雙酚類化合物,由雙酚類化合物引起的生態(tài)環(huán)境問題日益受到關(guān)注。本文以常見的雙酚F(BPF)、雙酚S(BPS)和雙酚B(BPB)為對(duì)象,研究了高錳酸鉀、次氯酸鈉及二氧化氯三種氧化劑對(duì)雙酚類化合物的氧化去除作用及機(jī)理。本文的主要結(jié)論如下:研究了高錳酸鉀對(duì)雙酚類化合物的去除作用及影響因素。高錳酸鉀可快速去除水中的BPF、BPB,且反應(yīng)均符合二級(jí)動(dòng)力學(xué)模型。提高溶液的溫度、pH值,或在溶液中添加腐殖酸、HCO3-均會(huì)促進(jìn)高錳酸鉀與BPF、BPB的反應(yīng)進(jìn)行。高錳酸鉀可以有效去除自然水體中低濃度的BPF,而對(duì)低濃度的BPB去除效果不佳。采用氣相色譜-質(zhì)譜聯(lián)用技術(shù)(GC-MS)分析了反應(yīng)過程中的降解產(chǎn)物,并推導(dǎo)了可能的降解途徑。研究了次氯酸鈉對(duì)雙酚類化合物的去除作用及影響因素。次氯酸鈉可快速去除水中的BPS、BPB,且反應(yīng)過程符合二級(jí)動(dòng)力學(xué)模型。提高溶液的溫度會(huì)顯著提高次氯酸鈉對(duì)BPS、BPB的去除效果;而NH4+會(huì)顯著抑制反應(yīng)的進(jìn)行。次氯酸鈉可以有效去除自然水體中低濃度的BPS和BPB。采用液相色譜-飛行時(shí)間質(zhì)譜儀(LC-TOF)分析了反應(yīng)過程中的轉(zhuǎn)化產(chǎn)物,并推導(dǎo)了可能的轉(zhuǎn)化途徑。研究了二氧化氯對(duì)雙酚類化合物的去除作用及影響因素。二氧化氯氧化BPS的反應(yīng)十分迅速,反應(yīng)過程符合二級(jí)動(dòng)力學(xué)模型。提高溶液溫度和pH值可提高二氧化氯對(duì)BPS的去除效果。二氧化氯可以快速去除自然水體中低濃度的BPS。采用LC-TOF和GC-MS技術(shù)檢測(cè)了反應(yīng)過程中的數(shù)種降解產(chǎn)物,并推導(dǎo)了可能的降解途徑。
[Abstract]:Bisphenol compounds are typical endocrine disruptors. Because of its huge usage and frequent detection of bisphenol compounds in soil, water body, air dust and so on, the ecological environmental problems caused by bisphenol compounds have been paid more and more attention. In this paper, the oxidation removal of bisphenol compounds by potassium permanganate, sodium hypochlorite and chlorine dioxide was studied. The main conclusions are as follows: the removal of bisphenol compounds by potassium permanganate and its influencing factors were studied. Potassium permanganate can rapidly remove BPFN BPBs from water, and the reaction accords with the second order kinetic model. Increasing the pH value of the solution or adding humic acid HCO3- to the solution can promote the reaction of potassium permanganate with BPFN BPB. Potassium permanganate can effectively remove low concentration of BPFs in natural water, but low concentration of BPB. Gas chromatography-mass spectrometry (GC-MS) was used to analyze the degradation products in the reaction process and the possible degradation pathway was deduced. The removal of bisphenol compounds by sodium hypochlorite and its influencing factors were studied. Sodium hypochlorite can rapidly remove BPSN BPBs from water and the reaction process is in accordance with the second order kinetic model. Increasing the temperature of the solution can significantly increase the removal efficiency of BPSN BPB by sodium hypochlorite, while NH4 can significantly inhibit the reaction. Sodium hypochlorite can effectively remove BPS and BP from natural water. The transformation products in the reaction process were analyzed by LC-TOF, and the possible transformation pathway was deduced. The removal of bisphenol compounds by chlorine dioxide and its influencing factors were studied. The oxidation of BPS by chlorine dioxide was very rapid, and the reaction process was in accordance with the second order kinetic model. The removal effect of chlorine dioxide on BPS can be improved by increasing the solution temperature and pH value. Chlorine dioxide can quickly remove low concentrations of BPSs in natural water. LC-TOF and GC-MS techniques were used to detect several degradation products and possible degradation pathways were deduced.
【學(xué)位授予單位】:合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:X505
【參考文獻(xiàn)】
相關(guān)期刊論文 前7條
1 馮家豪;劉海津;汪應(yīng)靈;馮振濤;劉國(guó)光;;次氯酸鈉氧化降解水楊酸[J];環(huán)境工程學(xué)報(bào);2016年02期
2 許春鳳;馬鈴;周智勇;李金國(guó);周建華;羅婷;;次氯酸鈉在飲用水消毒方面的應(yīng)用[J];西南給排水;2015年02期
3 Meiquan Cai;Liqiu Zhang;Fei Qi;Li Feng;;Influencing factors and degradation products of antipyrine chlorination in water with free chlorine[J];Journal of Environmental Sciences;2013年01期
4 ;Photolysis kinetics and influencing factors of bisphenol S in aqueous solutions[J];Journal of Environmental Sciences;2012年05期
5 王琳;董秉直;高乃云;;超濾去除水中內(nèi)分泌干擾物(BPA)的效果和影響因素[J];環(huán)境科學(xué);2007年02期
6 ;Kinetics of aniline oxidation with chlorine dioxide[J];Journal of Environmental Sciences;2004年02期
7 范志云,黃君禮,王鵬,蘇立強(qiáng),鄭永杰,李英杰;二氧化氯氧化水中苯胺的反應(yīng)動(dòng)力學(xué)及機(jī)理研究[J];環(huán)境科學(xué);2004年01期
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