【正文】 我對(duì)本專業(yè)產(chǎn)生了濃厚的興趣，使我對(duì)日后的工作充滿了希望和信心。尤其對(duì)各門專業(yè)基礎(chǔ)課及專業(yè)課有了更深的認(rèn)識(shí)，為我以后的學(xué)習(xí)和幫助有了堅(jiān)強(qiáng)的基礎(chǔ)，也為我更好的從事本專業(yè)工作樹(shù)立了信心。在此，我再一次衷心的感謝我所有的任課教師。再次，感謝指導(dǎo)我設(shè)計(jì)的每一位老師，他們?cè)诮虝?huì)我知識(shí)的同時(shí)也教會(huì)了我們做人的道理和他們嚴(yán)謹(jǐn)?shù)闹螌W(xué)作風(fēng)，讓我受益非淺，并將伴隨一生。我衷心祝愿動(dòng)力工程學(xué)院的每一位老師，身體健康，事業(yè)有成，桃李難天下！最后，感謝我的同學(xué)們。他們?cè)谌粘５膶W(xué)習(xí)生活中給予了我很多幫助，幫我度過(guò)了一個(gè)個(gè)難關(guān)，點(diǎn)點(diǎn)滴滴見(jiàn)真情，他們是我的好同學(xué)好朋友。祝他們?cè)缛诊w黃騰達(dá)一展宏圖，也祝愿每一位同學(xué)能夠在將來(lái)的工作中為南師動(dòng)院爭(zhēng)光添彩！感謝所有幫助過(guò)我的人！我愛(ài)我的大學(xué)，我愛(ài)我的老師，我愛(ài)我的同學(xué)，雖然大學(xué)即將結(jié)束，我并不感到惆悵，因?yàn)槲以诖髮W(xué)中得到了很多很多的知識(shí)，不僅僅是書本上的，還有更多做人的道理，我感謝我的老師我的同學(xué)我美麗的校園，是你們給予了我快樂(lè)，我會(huì)用我的努力，用我的一腔熱血去奮斗，去建設(shè)我們的國(guó)家，為我們美麗的校園增光添彩！也不辜負(fù)老師對(duì)我們厚望。祝福我們美麗的校園明天會(huì)更好！英文原文與文獻(xiàn)Oxidize the ditch craft in dirty water handle of application and developmentSummary: This text expatiated primarily the Carrousel oxidizes the construction, craft mechanism of the ditch and circulate the problem exsited in the process with the homologous the method of , introduce the Carrousel oxidize the latest research progress of the ditch and pointed out the future and main research direction.Key phrase: The Carrousel oxidizes the ditch divideds by the phosphor takes off the nitrogen construction mechanismApplication and Development of Carrousel Oxidation Ditch Process on Wastewater Treatment Abstract: The structure and the techniques of carrousel oxidation ditch process on nitrogen and phosphor removal are introduced in this paper. The problems inrunning and their corresponding resolvent are also pointed. At last, The authorshowed the up to date research improvement and the mainly future research direction. Key words: Carrousel。 oxidation ditch。 nitrogen and phosphor removal。 structure。techniques1. ForewordOxidize the ditch( oxidation ditch) again a continuous circulation spirit pond( Continuous loop reactor), is a live and dirty mire method a kind of to the dirty water in ditch handles the craft be researched to manufacture by the hygiene engineering graduate school of Holland in the 5039。s of 20 centuries in 1954 at Dutch throw in the usage for the very first its a water fluid matter good, circulate the stability and manage convenience etc. technique characteristics, already at domestic and international and extensive application in live the dirty water to is dirty to manage aqueously with the industry[1].Current application than oxidize extensively the ditch type include:The ( Pasveer) oxidizes the ditch, the ( Carrousel) oxidizes the ditch, ( Orbal) oxidizes the ditch, the type of T oxidizes the ditch( three ditch types oxidize the ditch), the type of DE oxidizes the ditch to turn to oxidize the ditch with the integral oxidize the ditch because of the difference of esse in construction with circulating, therefore each characteristics[2].This text will introduce construction, mechanism, existent problem and its latest developments that Carrousel oxidize ditches primarily.2. The Carrousel oxidizes the construction of the ditchThe Carrousel oxidize the ditch to be researched to manufacture by Dutch DHV pany development in the last the pany of DHV in foundation of the ditch in the original Carrousel to permited specially the pany EIMCO to invent again with its patent in the United States Carrousel 2000 system( see the figure ), realizes the living creature of the higher request takes off the nitrogen with divided by the function of .There has been in the world up to now more than 850 Carrousels oxidize the ditch with the Carrousel 2000 system are circulating[3].From diagram therefore, the Carrousel oxidizes the ditch the usage the spirit of that definite direction control with shake up the device, face to mix with the liquid deliver the level speed, from but make drive the liquid of admixture that shake up is in oxidize ditch shut match outlet circulate oxidize the ditch have the special hydraulics flows the , current plete mix with the characteristics of the type reactor, have the characteristics that push the flow type reactor again, the ditch inside exsits obviously of deliquescence oxygen density steps the ditch cross section is rectangle or trapezoids, the flat surface shape is many for oval, the ditch internal water is deep general for ～ ｍ , the breadth is deep pare for 2:1, also have the deep water amount to 7 ms of, ditch inside average speed in water current is ms/ ditch spirit admixture equipments contain surface spirit machine, the spirit of turn to brush or turn the dish and shoot to flow the spirit machine, pipe type spirit machine with promote take care of type spirit machine etc., match with in recent years usage still contain underwater push machine[4~6].3. The Carrousel oxidizes the mechanism of the ditch The Carrousel oxidizes the ditch handles dirty and aqueous principleThe at the beginning mon Carrousel oxidizes the dirty water in inside in craft of the ditch direct with dirty mire in reflux together enter oxidize the ditch surface spirit machine makes fuse in the liquid of admixture the density of the oxygen DO increases about 2 the 3 mgs/ this kind of well the term of the oxygen , the microorganism gets the enough deliquescence oxygen es and go to divided by the BOD。At the same time, the ammonia were too oxidized nitrate with second nitrate, this time, mix with the liquid be placed in the oxygen the spirit machine downstream, after water current be bee by the swift flow appearance of the spirit District of even flow the appearance, the water current maintains in the minimum current velocity, guaranteeing the live and dirty mire be placed in the floats the appearance.( average current velocity ms/ s)Oxidize microbially the process consumed to fuse the oxygen in the water, until the value of DO declines for zero, mixing with the liquid report the anoxia nitric that turn the function through anoxia area, mix with the liquid enter to have the oxygen area, pleting once system inside, the BOD declines the solution is a continuous process, the nitric turns the function to turn with the versa nitric the function take place in same of structural restrict, this kind of oxidize the di