本文選題：電化學(xué)消毒 + 再生水��； 參考：《中國(guó)人民解放軍軍事醫(yī)學(xué)科學(xué)院》2007年碩士論文

【摘要】： 由于環(huán)境污染的加劇，人們迫切需要更有效、更經(jīng)濟(jì)、更清潔的污染消除技術(shù)，作為一種“環(huán)境友好技術(shù)”的電化學(xué)技術(shù)在環(huán)境污染物的檢測(cè)、環(huán)境污染物的處理、清潔生產(chǎn)、清潔能源等方面，發(fā)揮著越來越重要的作用。在水的消毒處理中，電化學(xué)法具有消毒效果好、無二次污染、有持續(xù)消毒效果、自動(dòng)化程度高、處理對(duì)象廣泛等優(yōu)點(diǎn)，因此它作為一種高級(jí)氧化過程而受到人們的關(guān)注。 本文的研究目的是在實(shí)驗(yàn)室過去研究的基礎(chǔ)上，將電化學(xué)技術(shù)應(yīng)用于再生水消毒過程中，達(dá)到工程化應(yīng)用的目的。研究?jī)?nèi)容包括：各種不同電極材料應(yīng)用于電化學(xué)消毒效果評(píng)價(jià)及最佳電極材料的選擇；在再生水環(huán)境中，處理時(shí)間、極板間距和電壓對(duì)電極表面電化學(xué)產(chǎn)氯的影響以及電解過程中一些重要水質(zhì)參數(shù)的變化等；在實(shí)驗(yàn)室條件下，研究反應(yīng)器產(chǎn)生的消毒因子對(duì)微生物的殺滅效果、殺菌機(jī)理及影響因素，研究消毒劑在水中的持續(xù)消毒效果；大噸位電化學(xué)消毒反應(yīng)器的應(yīng)用于2000m~3／d的再生水回用示范工程中，運(yùn)行模式、消毒技術(shù)特點(diǎn)與規(guī)律的觀察和研究。通過上述研究得出以下主要結(jié)論： 電化學(xué)消毒法能夠有效地通過產(chǎn)生活性物質(zhì)包括Cl_2、ClO_2、O_3、H_2O_2、ClO_2、OH·等，它們能夠有效的殺滅再生水中的微生物。形穩(wěn)陽極(dimensionally stable anode，DSA)具有表面積大、電化學(xué)穩(wěn)定性好、電催化性能優(yōu)異的特點(diǎn)，適合作為再生水電化學(xué)消毒的電極材料�；钚月犬a(chǎn)量受極板間距和電壓的影響較大，電壓增大和極板間距減小均可以增加活性氯產(chǎn)量，但是同時(shí)也可能使電流效率降低；在對(duì)再生水的電化學(xué)消毒過程中，水體的pH、ORP和電導(dǎo)率變化不大；電化學(xué)產(chǎn)生的活性氯成分在水體中的衰減速度與氯氣相當(dāng)，但遠(yuǎn)低于臭氧的衰減速度。針對(duì)再生水廠砂濾出水進(jìn)行的電解消毒器現(xiàn)場(chǎng)應(yīng)用試驗(yàn)表明，再生水消毒水量為2000m~3／d的電解消毒裝置的合理設(shè)計(jì)參數(shù)為：電解槽電壓24V、電流密度10.8mA／cm~2、比電級(jí)面積19.2 cm．d／m~3、水力停留時(shí)間為37S，處理后水中余氯0.67mg／L，消毒30min后細(xì)菌總數(shù)為28cfu／ml，總大腸菌群為1個(gè)／L，氨氮去除率為16.3％，運(yùn)行能耗為0.095 kWh／m~3，，pH值、電導(dǎo)率、COD等沒有明顯變化。
[Abstract]:As environmental pollution intensifies, people urgently need more effective, more economical and cleaner pollution removal technology. As an "environment-friendly technology", electrochemical technology can be used to detect environmental pollutants, treat environmental pollutants, and clean production. Clean energy and other aspects, play a more and more important role. In the disinfection treatment of water, electrochemical method has the advantages of good disinfection effect, no secondary pollution, continuous disinfection effect, high degree of automation, wide range of treatment objects and so on. Therefore, it has attracted people's attention as a kind of advanced oxidation process. The purpose of this paper is to apply electrochemical technology in the process of reclaimed water disinfection on the basis of previous laboratory research and to achieve the purpose of engineering application. The research contents include: the evaluation of electrochemical disinfection effect of various electrode materials and the selection of the best electrode materials, the treatment time in the reclaimed water environment, Effects of electrode spacing and voltage on electrochemical chlorine production on electrode surface and changes of some important water quality parameters during electrolysis. The germicidal mechanism and influencing factors were studied to study the continuous disinfection effect of disinfectant in water, and the application of large-tonnage electrochemical disinfection reactor to the demonstration project of reclaimed water reuse of 2000m~3/d. The operation mode, characteristics and regularity of disinfection technology were observed and studied. The main conclusions obtained from the above study are as follows: Electrochemical disinfection can effectively kill microbes in regenerated water by producing active substances, including Cl2COs, ClOs, 2S, H2O2CIO, 2OH, and so on. The shape stabilized anode has the advantages of large surface area, good electrochemical stability and excellent electrocatalytic performance. It is suitable for electrochemical disinfection of regenerated water. The production of active chlorine is greatly affected by the plate spacing and voltage. The increase of voltage and the decrease of plate spacing can increase the production of active chlorine, but at the same time, it may also reduce the current efficiency. The pH value of ORP and the conductivity of the water had little change, and the decay rate of the active chlorine components produced by electrochemistry was similar to that of chlorine gas, but much lower than that of ozone. The field application test of electrolytic sterilizer for sand filtration in reclaimed water plant shows that, The reasonable design parameters of electrolytic disinfecting device with regenerated water disinfector quantity 2000m~3/d are as follows: electrolytic cell voltage 24V, current density 10.8mA / cm ~ (-2), specific electric area 19.2 cm 路d / m ~ (-1), hydraulic retention time (HRT) 37s, residual chlorine 0.67 mg / L / L after treatment, total bacterial count after disinfection of 30min is 28cfur / ml, the total number of bacteria after disinfection is 28cfur / ml. Coliform group is 1 / L, ammonia nitrogen removal rate is 16. 3%, running energy consumption is 0.095 KW / m ~ 3 pH value, There was no obvious change in conductivity, COD and so on.
【學(xué)位授予單位】：中國(guó)人民解放軍軍事醫(yī)學(xué)科學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2007
【分類號(hào)】：R187

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