本文選題：電化學(xué) + 生物膜　； 參考：《同濟(jì)大學(xué)》2006年碩士論文

【摘要】：近些年,我國城市發(fā)展日新月異,現(xiàn)代化設(shè)施在給人們帶來舒適的同時(shí),也為軍團(tuán)菌的孳生創(chuàng)造了有利條件,人們接觸軍團(tuán)菌的機(jī)會(huì)越來越多。軍團(tuán)菌與水的關(guān)系非常密切。現(xiàn)在人們逐漸認(rèn)識(shí)到軍團(tuán)病的發(fā)作不僅僅是空調(diào)系統(tǒng)問題,而且是一個(gè)供水問題,當(dāng)與人類生活密切的水源系統(tǒng)一旦被該菌污染,便有可能會(huì)引起軍團(tuán)病的散發(fā)和爆發(fā)流行。 常用的軍團(tuán)菌控制方法諸如氯消毒、銅和銀的正離子消毒、臭氧消毒、紫外線(UV)消毒等方法都存在各種各樣的缺陷,除各自方法本身特點(diǎn)原因外,另一主要原因就是由于軍團(tuán)菌易寄生在水生細(xì)菌、原生動(dòng)物、生物膜的特性所造成的。電化學(xué)技術(shù)是一種新型的水處理技術(shù)。近年來,電化學(xué)技術(shù)用于水處理消毒取得了長足的發(fā)展,該技術(shù)的應(yīng)用也逐步涉及到多個(gè)領(lǐng)域。研究表明電化學(xué)技術(shù)的多種殺菌機(jī)制可以有效控制生物膜的形成,而且具有持續(xù)殺菌的作用。實(shí)踐也表明該技術(shù)用于水處理殺菌、消毒是經(jīng)濟(jì)高效的。 本課題將電化學(xué)殺菌、消毒技術(shù)用于軍團(tuán)菌的控制,將為目前亟待解決的軍團(tuán)菌控制問題開辟了新途徑。此外對(duì)該技術(shù)殺滅軍團(tuán)菌機(jī)理方面的初步研究及探討其作用規(guī)律,也將為在生產(chǎn)實(shí)踐中推廣和合理應(yīng)用該類裝置提供理論依據(jù)。 本論文從生物膜和軍團(tuán)菌微觀結(jié)構(gòu)兩個(gè)角度,對(duì)運(yùn)用電化學(xué)技術(shù)控制軍團(tuán)菌進(jìn)行了研究,研究思路如下: 一、軍團(tuán)菌具有可存活在生物膜內(nèi)的生長特性,使其可處在生物膜的保護(hù)作用下,從而導(dǎo)致傳統(tǒng)的殺菌消毒措施往往不能取得理想的效果。因而,首先從環(huán)境因素角度考察,研究電化學(xué)殺菌、消毒技術(shù)對(duì)生物膜和總菌的控制。 二、從微觀學(xué)角度出發(fā),實(shí)驗(yàn)采用電化學(xué)方法、加氯消毒、Fenton試劑消毒三種不同的方法,作用于含有初始軍團(tuán)菌濃度為No的純菌水樣,在各自的反應(yīng)條件下,作用一段時(shí)間后測(cè)其殺菌率,并利用掃描電鏡來觀察經(jīng)過不同方法處理后,軍團(tuán)菌細(xì)胞表面結(jié)構(gòu)的變化。 由上研究得出如下結(jié)論: 1、電化學(xué)方法對(duì)于控制模擬循環(huán)水系統(tǒng)中生物膜和總菌均具有較理想的效
[Abstract]:In recent years, the development of cities in China is changing with each passing day. At the same time, modern facilities bring comfort to people, and also create favorable conditions for the breeding of Legionella. People have more and more opportunities to contact Legionella. The relationship between Legionella and water is very close. It is a water supply problem. When the water source system closely related to human life is polluted by this bacterium, it may cause Legionella disease sporadic and outbreaks.
The common control methods of Legionella bacteria such as chlorine disinfection, copper and silver positive ion disinfection, ozone disinfection, and ultraviolet (UV) disinfection have all kinds of defects. In addition to the characteristics of their own methods, the other main reason is that Legionella is easily parasitized by the characteristics of aquatic bacteria, protozoa and biofilm. Technology is a new kind of water treatment technology. In recent years, electrochemical technology has made great progress in the disinfection of water treatment. The application of this technology has also been involved in many fields. The research shows that many kinds of bactericidal mechanisms of electrochemical technology can effectively control the formation of biofilm and have the effect of continuous sterilization. Practice also shows that The technology is economical and efficient for sterilization and disinfection in water treatment.
The application of Electrochemical Sterilization and disinfection technology in the control of Legionella will open up a new way for the problem of Legionella control, which is urgently to be solved at present. In addition, the preliminary study on the mechanism of killing Legionella by this technology and the law of its action will also provide a theoretical basis for the application of this kind of device in the production practice.
From the two perspectives of biofilm and Legionella microcosmic structure, this paper studied the use of electrochemical technology to control Legionella.
First, Legionella has the growth characteristics that can survive in the biofilm, so that it can be under the protective effect of biofilm, which leads to the traditional sterilization and disinfection measures often can not achieve the ideal effect. Therefore, first from the environmental factors, the study of Electrochemical Sterilization and the control of the biological membrane and the total bacteria by the Electrochemical Sterilization Technology.
Two, from the microcosmic point of view, the experiment uses electrochemical methods, chlorination disinfection, and Fenton reagent disinfection three different methods. It acts on the pure bacteria water samples containing the initial Legionella concentration of No. Under the respective reaction conditions, the bactericidal rate is measured after a period of action, and the scanning electron microscope is used to observe the Legionella after different methods. Changes in the surface structure of the cells.
The following conclusions are drawn from the previous study.
1, the electrochemical method is ideal for controlling the biofilm and total bacteria in the simulated circulating water system.
【學(xué)位授予單位】：同濟(jì)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2006
【分類號(hào)】：R183

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