摘要:氧化溝工藝是活性污泥法的一種改型，由于其構(gòu)筑物簡單、基建費用省、耐沖擊負荷能力強、污泥量少、運行管理方便且處理效果穩(wěn)定等特點，越來越普遍被作為國內(nèi)城市污水處理工程的主要選用工藝之一。

　　　現(xiàn)階段國內(nèi)常用的氧化溝工藝設(shè)計方法有十多種，優(yōu)化選擇適合我國污水處理的氧化溝工藝設(shè)計方法和參數(shù)是降低工程造價、保證處理效果的重要途徑。本工藝選擇的是卡羅賽氧化溝。化溝污水處理工藝是在20世紀50年代由荷蘭衛(wèi)生工程研究所研制成功的，投入使用以來，由于其出水水質(zhì)好、運行穩(wěn)定、管理方便等技術(shù)特點，已經(jīng)被廣泛應(yīng)用于生活污水和工業(yè)污水的治理。卡羅賽氧化溝一般呈環(huán)形溝渠狀，污水在溝渠內(nèi)作環(huán)形流動，利用獨特的水力流動特點，在溝渠轉(zhuǎn)彎處設(shè)曝氣裝置，在曝氣池上方為厭氧池，下方則為好氧段，從而產(chǎn)生富氧區(qū)和缺氧區(qū)，可以進行硝化和反硝化作用，取得脫氮的效應(yīng)，同時氧化溝法污泥齡較長，可以存活世代時間較長的微生物進行特別的反應(yīng)，如除磷脫氮。

關(guān)鍵詞：氧化溝  卡羅賽   廣泛應(yīng)用   除磷脫氮

Abstract:The oxidation ditch technology is a modified activated sludge system, because of its simple structure, low costs, bearing high organic load, less sludge, convenience in operation and management and stable performance, it’s been used more and more commonly as the one of the main technology of domestic sewage treatment plants.

　　　Now there are more than 10 designing of oxidation ditch technology in our country ,it’s an important way to reduce project construction cost, guarantee the treating results by choose the design of oxidation ditch and the parameters suitable for the water treatment of our country. This process selection is the oxidation ditch of carrousel. The oxidation ditch technology is the oxidation ditch wastewater treatment process 50 years in the 20th century by the Dutch Health Research Institute successfully developed, and put into use, because of its good water quality, stable, easy management, and other technical features, has been widely used in sewage And industrial wastewater treatment. The oxidation ditch of carrousel was the ring general like ditches, sewage flows in the ditch for the ring, the use of the unique characteristics of water flow in the ditch turns aeration device, the aeration tank top for the anaerobic pond, the bottom was aerobic, Resulting in oxygen-rich zone and anoxic zone can nitrification and denitrification, to obtain the effect of nitrogen, and oxidation ditch sludge age is longer, you can live a longer generation time of microorganisms to particular reaction, such as Phosphorus and nitrogen removal.

Keywords: oxidation ditch   carrousel   widely used   Phosphorus and nitrogen removal