本文選題：成像光譜儀 + 光譜圖像　； 參考：《哈爾濱工業(yè)大學(xué)》2017年碩士論文

【摘要】：我國(guó)印染紡織業(yè)帶動(dòng)經(jīng)濟(jì)發(fā)展的同時(shí),每年會(huì)排放大量對(duì)水環(huán)境有害的印染廢水。印染廢水成分復(fù)雜,對(duì)印染廢水的快速檢測(cè)是我國(guó)水質(zhì)檢測(cè)技術(shù)的一個(gè)挑戰(zhàn)�？煺帐匠上窆庾V儀可以在一個(gè)快門(mén)的積分時(shí)間內(nèi)獲取目標(biāo)的三維光譜數(shù)據(jù)集,從而可以根據(jù)光譜信息地對(duì)目標(biāo)進(jìn)行檢測(cè)。本課題旨在使用自主研發(fā)的快照式成像光譜儀,建立一種準(zhǔn)確、快捷、簡(jiǎn)易、可現(xiàn)場(chǎng)檢測(cè)印染廢水的檢測(cè)方法。本文基于分光光度法原理,首先驗(yàn)證了儀器優(yōu)良的圖像獲取性能,快速的光譜獲取能力,以及532 nm處有優(yōu)于11 nm的光譜分辨力,并將儀器用于液體樣品的檢測(cè)。選用羅丹明B染料廢水為研究對(duì)象,優(yōu)化檢測(cè)條件。分析三種檢測(cè)光源的優(yōu)缺點(diǎn),確定不同應(yīng)用場(chǎng)景下的光源;設(shè)計(jì)用于檢測(cè)的樣品池,提高檢測(cè)的精度和穩(wěn)定性;分析背景光干擾對(duì)檢測(cè)結(jié)果的影響,通過(guò)單因素方差分析,證明上方背景光可提高成像質(zhì)量且對(duì)檢測(cè)無(wú)影響。用快照式成像光譜儀檢測(cè)模擬印染廢水。對(duì)于單一組分模擬廢水,以白光LED陣列光源為檢測(cè)光源,實(shí)驗(yàn)建立了橙黃G和羅丹明B 0-50 mg/L范圍內(nèi)的標(biāo)準(zhǔn)曲線,確定了檢測(cè)橙黃G和羅丹明B的檢出限分別為0.837 mg/L和0.905mg/L,對(duì)羅丹明B和橙黃G廢水的回收率分別為93%-113%和102%-104%,相對(duì)標(biāo)準(zhǔn)偏差(RSD)分別為5.2%和1.3%;對(duì)于混合組分模擬廢水,直接進(jìn)行檢測(cè)的誤差較大,通過(guò)多元線性回歸結(jié)合分光光度法建立了混合組分印染廢水的檢測(cè)模型,模型的擬合程度很高,利用建立的檢測(cè)模型對(duì)樣品進(jìn)行檢測(cè)可顯著降低測(cè)量的相對(duì)誤差。用快照式成像光譜儀監(jiān)測(cè)印染廢水的脫色過(guò)程。設(shè)計(jì)了活性炭吸附和Fenton試劑氧化羅丹明B廢水的反應(yīng)裝置,建立了羅丹明B廢水在0.5-10 mg/L范圍的標(biāo)準(zhǔn)曲線,判定系數(shù)R2大于0.99。用活性炭吸附羅丹明B廢水,儀器監(jiān)測(cè)到吸附過(guò)程中廢水的光譜發(fā)生變化,且變化趨勢(shì)與廢水脫色現(xiàn)象一致;探究活性炭投加量對(duì)吸附效果的影響,繪制不同活性炭投加量下的的吸附曲線,得出隨著活性炭投加量的增加,活性炭的吸附能力與吸附的速度均有所加強(qiáng)。在Fenton試劑氧化實(shí)驗(yàn)中,采用連續(xù)采樣模式,監(jiān)測(cè)450 s內(nèi)廢水的脫色過(guò)程,并探究不同過(guò)氧化氫投加量對(duì)脫色效果的影響,得出在5 m L/L的最佳過(guò)氧化氫投加量下,廢水脫色率可達(dá)90.68%。
[Abstract]:With the development of textile industry in China, a large amount of printing and dyeing wastewater which is harmful to water environment will be discharged every year. Because the composition of printing and dyeing wastewater is complex, rapid detection of printing and dyeing wastewater is a challenge of water quality detection technology in China. The snapshot imaging spectrometer can obtain the three-dimensional spectral data set of the target in the integral time of a shutter, so that the target can be detected according to the spectral information. The purpose of this paper is to establish an accurate, fast, simple and field detection method for printing and dyeing wastewater by using the snapshot imaging spectrometer developed by ourselves. Based on the principle of spectrophotometry, this paper first verifies the excellent image acquisition performance of the instrument, the fast spectral acquisition ability, and the spectral resolution at 532 nm which is better than 11 nm. The instrument is applied to the detection of liquid samples. Rhodamine B dye wastewater was selected as the research object and the detection conditions were optimized. The advantages and disadvantages of the three detection light sources are analyzed to determine the light sources in different application scenarios; the sample pool for detection is designed to improve the accuracy and stability of the detection; the influence of background light interference on the detection results is analyzed, and the single factor variance analysis is used to analyze the effect of background light interference on the detection results. It is proved that the above background light can improve the imaging quality and has no effect on the detection. The simulated printing and dyeing wastewater was detected by snapshot imaging spectrometer. The standard curves of orange G and Rhodamine B 0-50 mg / L were established by using white LED array light source as the detection light source for a single component simulated wastewater. The detection limits of orange G and Rhodamine B were 0.837 mg / L and 0.905 mg / L, respectively. The recoveries of Rhodamine B and orange G wastewater were 93-113% and 102-104%, respectively. The relative standard deviation (RSD) was 5.2% and 1.3%, respectively. The error of direct detection is large. The detection model of mixed component printing and dyeing wastewater is established by multivariate linear regression and spectrophotometry, and the fitting degree of the model is very high. The relative error of measurement can be significantly reduced by using the established detection model to detect the sample. The decolorization process of printing and dyeing wastewater was monitored by snapshot imaging spectrometer. A reactor for adsorption of activated carbon and oxidation of Rhodamine B wastewater with Fenton reagent was designed. The standard curve of rhodamine B wastewater in the range of 0.5-10 mg / L was established. The determination coefficient R2 was greater than 0.99. The absorption of Rhodamine B wastewater by activated carbon has been monitored by the instrument, and the change trend is consistent with the decolorization of wastewater, and the effect of the dosage of activated carbon on the adsorption effect is explored. The adsorption curves under different dosage of activated carbon were plotted. It was concluded that the adsorption capacity and adsorption rate of activated carbon increased with the increase of the amount of activated carbon. In Fenton reagent oxidation experiment, continuous sampling mode was used to monitor the decolorization process of wastewater in 450 s, and the effect of different hydrogen peroxide dosage on decolorization effect was investigated. The optimum hydrogen peroxide dosage of 5 mL / L was obtained. The decolorization rate of wastewater can reach 90.68%.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：X791

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本文編號(hào)：1995614