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畢業(yè)論文-微生物燃料電池廉價填料型電極材料的研究(參考版)

2025-01-15 14:59本頁面
  

【正文】 s Guangzhou city anized the Chengdu festival. A terrifying wooden bridge in China has just been replaced by a glass one. This, the world’s longest glassbottomed walkway, is located in Shiniuzhai Geopark in Hunan, and spans 300m (984f) and is 180m (590f) above ground. The floor is made of doublelayered glass that is 24mm (), and is reportedly 25 times stronge。s suggestion that a special day be marked in the year for the global practice of the stressbusting regimen, which is already a multibillion dollar industry in the United States. Modi said in the speech: Yoga is an invaluable gift of India39。t conducive to raising a child. She planned to have children once she had achieved career success so she could provide a stable environment for her baby. After 10 years, Xiao felt the time was right, and she tried to conceive for about six months, but was unable to bee pregnant. I conducted prehensive physical checkups. The results suggested that Xiao39。s health. Poor technique harms the muscles and skeleton, and can cause secondary injures. And, jogging in a bad environment can cause circulation problems, said Lu Zhiyong, attending doctor, Sports Hospital, General Admin. of . Lu has some tips for joggers, and those who are thinking of taking it says people sh ould first evaluate their physical condition, to decide the amount and type of exercise, and jogging in the open air is better running on a treadmill. Conrad Macao will run special programs for the entire month of October this year to support the Hong Kong Cancer Fund39。ll hold off jogging for a while. But if I really want to get away from work, I39。s work can be a way to unwind. It is true for He Wenjun, whose workplace is right near the forest park. She discovered her athletic aptitude at the age of seven, when she began playing tennis. Then she turned to jogging, and she has persevered with it for 10 years. I e to jog almost every day after work, whenever I have time. I think jogging is good for my health. And for me, a girl, it helps me to achieve to eternal goal, to keep slim, He said. He says she prefers jogging alone, so she can focus better. She loves jogging, even during Beijing39。s digitized society, will also be attached on the report.Myopia is not only a disease that makes people see things blurrily, but also leads to severeplications, such as glaua (increased pressure within the eyeball), and can causeblindness, said Zhou Yuehua, an established eye care specialist with Beijing TongrenHospital.It is very important for parents and children to know about the risk and care for their eyes.There are about 450 million myopia patients in China. Among Chinese myopia patients,30million are severe patients, according to ZhouThe prevalence of myopia among high school and college students is more than 70 percent,and the situation is continuously worsening, he Zhu, director with the China Youth Development Service Center, said long hours ofstudy, lack of exercise, especially outdoor activities, and attachment to electronic screen aresome of the top reasons behind the widespread myopia problems, and the increase ofyounger patients, although China has made great progress in improving the hardwarefacilities and lighting conditions in said he hopes the survey will alert people on the threatening situation, and also helpmedical experts to better guideline parents and children39。 參考文獻 24 您好,為你提供優(yōu)秀的畢業(yè)論文參考資料,請您刪除以下內(nèi)容, O(∩_∩)O 謝謝?。。 national survey was recently launched to evaluate the eye health of Chinese children andteenager June 6, China39。 通過這一階段的努力,我的畢業(yè) 論文《 微藻燃料電池的低成本化與實用化研究 》終于完成了,這意味著大學生活即將結(jié)束。從內(nèi)容到格式,從標題到標點, 他 都費盡心血。老師的諄諄誘導、同學的出謀劃策及家長的支持鼓勵,是我堅持完成論文的動力源泉。這除了自身努力外,與各位老師、同學和朋友的關(guān)心、支持和鼓勵是分不開的 ?;厥准韧?,自己一生最寶貴的時光能于這樣的校園之中,能在眾多學富五車、才華橫溢的老師們的熏陶下度過,實是榮幸之極。洛根著 .馮玉杰 ,王鑫等譯 .微生物燃料電池 [M].北京 ,化學工業(yè)出版社 ,2022,58200. [8] 郄悅名 .大腸桿菌微生物燃料電池陰的研究 .太原理工大學 .碩士研究生論文 .2022,2040. [9] 范平 ,支銀芳 ,周楚新 .微生物燃料電池中陽極產(chǎn)電微生物的研究進展 [J].生物學通報 .(12): 412414. [10] 遲美玲 .提高微生物燃料電池性能的電極材料研究 .南開大學 .碩士學位論文 .. [11] 崔婭楠 .生物 活性碳對微生物燃料電池性能的影響 .大連理工大學 .碩士學位論文 .. [12] Kouroussis D, Karimi S. Alternative fuels in Transportation[J]. , 2022,26(4): 346355. [13] You S, Zhao Q, et al. A Microbial Fuel Cell Using Permanganate as the Electron Acceptor [J].J. Power Sources, 2022, 40(17):14061415. [14] Liu H, Cheng S, Logan B E, Production of Electricity from acetate or Buty rate Using SingleChamber a Microbial fuel cell. Environmental Science and Technology. 2022, 39(2):6583662. [15] Logan Bruce E, Regan John M. Electricityproducing bacterial munities in microbial fuel cell [J].TRENDS in Microbiology. 2022, 14(2):512518. [16] Lovely D .R. Microbial fuel cell: novel microbial physiologies and engineering approaches [J].Current Opinion in Biotechnology. 2022,17(3):327321. [17] Kim H J, Park H S, Hyun M S, et al. A mediatorless microbial fuel cell using a metal reducing bacterium, Shewanella putrefaciens [J].Enzyme ,2022,30(2):145152. [18] G M Walker, L R. Biological activated carbon treatment of industrial wastewater in stirred tan reactors [J].Chemical Engineering Journal, 1999, 75(3):201206. 致 謝 23 致 謝 衷心感謝我的老師鄭勝教授在我的論文選題、研究方案制定、成果總結(jié)以及論文寫作過程中的嚴格要求和悉心指導,老師淵博的學識、嚴謹?shù)闹螌W態(tài)度、敬業(yè)的工作作風、獨特的人格魅力,始終感染著我、激勵著我,這些都將成為寶貴的財富讓我終生受益。設(shè)計 拉米尼 .安德魯 該 MFC 的最大功率密度為 ,高于本課題以往研究報道的以碳氈為電極材料、體積為 10L 的生物陰極 MFC,實現(xiàn)了 MFC 裝置體積的有效放大。污水在依次經(jīng)過陽極、好結(jié) 論 21 氧陰極和缺氧陰極的過程后,同時實現(xiàn)了產(chǎn)電、有機物的去除和硝化 反硝化脫氮。 ( 4)以活性焦作為電極材料,搭建了容積 50L 的好氧 /缺氧兩段式生物陰極 MFC 裝置,實現(xiàn)了脫氮、除碳和產(chǎn)電一體化及裝置的有效放大。通過 多層金屬網(wǎng)結(jié)構(gòu)的多點集電方式,可以有效地在大電流下將電子導出,提高產(chǎn)電性能。對于以活性焦作為填料的不同 厚度的電極,采用單片金屬網(wǎng)集電時,均可在大外阻下實現(xiàn)啟動。 ( 3)通過對活性焦填料型電極的構(gòu)型進行優(yōu)化,使 MFC 的整體性能達到最優(yōu)。比表面積較大的材料不僅有利于產(chǎn)電微生物的附著生長,同時具有較好的陰極化學催化性能。半焦的電阻率過大是其性能較差的 主要原因。比表面積較大的活性炭最有利于產(chǎn)電菌附著生長。 選取了較為廉價的半焦和活性炭與傳統(tǒng)的石墨和碳氈作為陽極和生物陰極電極材料進行了性能對比。本研究得到以下主要結(jié)論。 ( 3)該 MFC 在間歇和連續(xù)運行方式下分別可以穩(wěn)定運行 20 d 以上。隨著停留時間的 , 功率密度逐漸降低, COD、氨氮和總氮的去除率逐漸上升。 延長 ( 2)在“陽極 好氧陰極 缺 氧陰極”的推流式處理流程下,該 MFC 可以在
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