【正文】 提高充氧能力的有效方法和最方便的措施。 另外，通過在曝氣機上 游設置水下推動器也可以對曝氣轉刷底部低速區(qū)的混合液循環(huán)流動起到積極推動作用，從而解決氧化溝底部流速低、污泥沉積的問題。 微孔曝氣型 Carrousel 2020系統(tǒng) 微孔曝氣型 Carrousel 2020系統(tǒng)采用微孔曝氣（供氧設備為鼓風機），微孔曝氣器可產生大量直徑為 1mm左右的微小氣泡，這大大提高了氣泡的表面積，使得在池容積一定的情況下氧轉移總量增大（如池深增加則其傳質效率將更高）。因而，采用潛水推進器既降低了動力消耗，又使泥水得到了充分地混合。四是采用一體化設計，從中心開始，包括以下環(huán)狀連續(xù)工藝單元：進水井和用于回流活性污泥的分水器；分別由四部分組成的選擇池和厭氧池。但由于科技的發(fā)展和社會的進步，該工藝必將得到進一步的提高。 2 不斷提高 Carrousel氧化溝中微生物的活性。 4 提高 Carrousel氧化溝的耐寒、耐毒性能，減少占地面積和工程造價。 van Groenestijn, J. W. Use of contact tank to enhance denitrification in oxidation ditches. Water Science and Technology, 1996, 34(12):195~202. [3] 汪大，雷樂成。導管式氧化溝設計介紹。給水排水， 1999， 25(8)： 13~18。昆明第一污水廠氧化溝工藝運行實踐及分析。廣西土木建筑， 1998， 23(4)： 183~187。 [12] 吳昊，劉慶臣，李強利等。改善氧化溝流速分布的措施 中國給水 排水， 2020， 17(2)：16~18。 [15] 黃伏根，朱炳林。氧化溝脫氮除磷工藝的運行控制。給水排水， 1999， 25(3)： 27~30。 in 1954 at Dutch throw in the usage for the velY 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 aquecustv with the industlYli). 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 ditch The Carrousel Oxidize the ditch to be researched to manufacture by Dutch DHV pany development in the last the panyofDHVinfou ndationoftheditchin theoriginal Carrousel to permited specially the pany EIMCO to invent again with its patent in the United States Carrousel 2020 system realizes the living creature of the higher request takes off the nitrogen with in the world up to now more than 850 Carrousels oxidize the ditch with the Carrousel 2020 system are circulating 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 nowrnererore 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 exsrts obviously of deliquescence oxygen density steps the ditch cross section is rectangle or trapezoids, the fiat surface shape is many for oval, the ditch internal water is deep general for 4 .5 m , the breadth is deep pare for 2:1, also have the deep wate r 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 3. The Carrousel oxidizes the mechanism of the ditch The Carrousel oxidizes the ditch handles dirty and aqueous principle The at the beginning mon Carrousel oxidizes the dirty water In inside In craft of the ditch direct with dirty mire In reflux together enteroxidize theditch surface spiritmachinemakesfuse In the liquid of admixture the density of the oxygen DO increases about 2 the 3 mgsl this kind of well the term of the oxygen, the microorganism gets the enough deliquescence oxygen es and go to divided by the BOD。The mire is partial to long, the dirty mire is aging, and also easy creation topourthewaterordivided bywiththesurfacetheof do away with the foam, in mon use divided by the an organism oil, kerosene, the oil of stncon, throw deal as ~ mgsl to increase dirty mire in pond in spirit in density or adequacies let up the tolerance of ,also can control the foam creation contain the live materia! in surface in the waste water more, separate with the foam easily and in advance method or other methods do away can consider to increase to establish a set of dlvideding by the oil device enhance most importantly the headwaters manage, reducing to contain the oil over the high waste water and other poisonous waste water of into[llJ. Float the problem on the dirty mire When contain in the waste water the oil measures big, whole system mire quality bee light, can39。Suchas enterthe watercarries big let upintothe water measures or the enlargement reflux as the dirty mire grain small lower the spirit machine turn discovers versanitricturning,shouldletup thetolerance,enlarge the reflux or row the mire measures。 only 1/7, therefore result in to oxidize the ditch upper part current velocity bigger{ roughly 39。C )Two is the liquid of ad