本文關(guān)鍵詞： 微流控技術(shù) 表面活性劑 電動(dòng)操控 電阻脈沖檢測(cè)　出處：《大連海事大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：船舶是目前國(guó)際貿(mào)易的主要交通工具,隨著船舶數(shù)量和噸位的不斷增加,船舶產(chǎn)生的含油污水的總量也在不斷增加,其排放會(huì)對(duì)海洋環(huán)境造成巨大的危害,而微流控芯片技術(shù)作為當(dāng)前分析科學(xué)的重要發(fā)展前沿,其在研究與應(yīng)用方面都已經(jīng)取得了飛速的發(fā)展。因此基于微流控芯片技術(shù)的發(fā)展優(yōu)勢(shì),開展含油污水中油滴的操控和檢測(cè)研究,對(duì)于含油污水的處理和檢測(cè)檢測(cè)具有重要意義和應(yīng)用前景。 本文利用微流控芯片,研究了表面活性劑對(duì)油滴電動(dòng)輸運(yùn)行為的影響,并實(shí)現(xiàn)了含油污水中油滴的快速檢測(cè)、計(jì)數(shù)和尺寸判斷。具體來(lái)看,本文的研究?jī)?nèi)容主要包括： 1)綜述了船舶含油污水油分濃度檢測(cè)方法,電動(dòng)操控技術(shù)以及RPS檢測(cè)技術(shù)的發(fā)展,闡述了電動(dòng)微流控芯片技術(shù)中雙電層、直流電滲和直流電泳等基本理論。 2)利用微流控芯片,實(shí)驗(yàn)研究了不同極性表面活性劑對(duì)油滴電動(dòng)輸運(yùn)行為的影響規(guī)律。研究結(jié)果表明,在油污水中添加陰／陽(yáng)表面活性劑(SDS/CTAB),可方便地改變油滴表面的帶電量和電性,從而可通過(guò)電場(chǎng)操控改變油滴運(yùn)動(dòng)速度和方向,提高乳化油的聚集效果和分離能力。 3)基于差分微流控芯片電阻脈沖檢測(cè)原理和信號(hào)差分檢測(cè)的優(yōu)勢(shì),搭建了基于電阻脈沖原理(RPS)的油水混合物中油滴連續(xù)檢測(cè)、計(jì)數(shù)和尺寸判定實(shí)驗(yàn)系統(tǒng),在微流控芯片上對(duì)油水混合物中的油滴進(jìn)行了計(jì)數(shù)和尺寸大小判定研究,并實(shí)現(xiàn)了11mg/L油分濃度的檢測(cè)。 本文基于微流控芯片技術(shù),在微通道內(nèi)研究了含油污水中油滴的操控和檢測(cè),這對(duì)于發(fā)展含油污水處理的新技術(shù)具有一定的參考價(jià)值,并且為船舶含油污水及海洋油污染檢測(cè)提供了一種新型的手段。
[Abstract]:Ships are the main means of transportation in international trade at present. With the increase of the number and tonnage of ships, the total amount of oily sewage produced by ships is also increasing, and its discharge will cause great harm to the marine environment. Microfluidic chip technology, as an important development frontier of current analytical science, has made rapid development in research and application. Therefore, based on the advantages of microfluidic chip technology, The study on the manipulation and detection of oil droplets in oily sewage is of great significance and application prospect for the treatment and detection of oily sewage. In this paper, the effect of surfactant on the electrokinetic transport behavior of oil droplets is studied by using microfluidic chip, and the rapid detection, counting and size determination of oil droplets in oily sewage are realized. In detail, the main contents of this paper are as follows:. The main contents are as follows: 1) the development of oil concentration detection method, electric control technology and RPS detection technology are reviewed. The basic theories of electric microfluidic chip technology, such as double layer, direct current electroosmosis and DC electrophoretic, are expounded. 2) using microfluidic chip, the effect of different polarity surfactants on the electrokinetic transport behavior of oil droplets is studied experimentally. The addition of anionic / cationic surfactant SDS / CTABN in oil polluted water can easily change the electric quantity and the electric property of the oil droplet surface, thus the speed and direction of oil droplet movement can be changed by electric field manipulation, and the aggregation effect and separation ability of emulsified oil can be improved. 3) based on the principle of differential microfluidic chip resistance pulse detection and the advantage of signal differential detection, an experimental system of oil droplet continuous detection, counting and size determination in oil-water mixture based on resistance pulse principle is built. The counting and size determination of oil droplets in oil-water mixture were studied on a microfluidic chip, and the oil concentration of 11mg / L was detected. Based on microfluidic chip technology, the manipulation and detection of oil droplets in oily sewage are studied in the microchannel, which has certain reference value for the development of new technology of oily sewage treatment. It also provides a new method for the detection of oily sewage and marine oil pollution.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U664.9

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本文編號(hào)：1532029