【正文】 損失：合計(jì)：配水井井內(nèi)水位：配水井進(jìn)口損失：輻流式初沉池出水管損失：30=輻流式初沉池配水口水位：配水井進(jìn)口損失：沉砂池出水總管損失：20=平流沉砂池出水總渠起端與集水槽出水口水位相同，其水位為：沉砂池出水堰的堰上水頭：自由跌水：合計(jì)：沉砂池水位：細(xì)格柵過(guò)柵水頭損失：細(xì)格柵前水位：中格柵柵后的水面標(biāo)高中格柵前城市污水主干管的水面標(biāo)高為 ，則中格柵柵后的水面標(biāo)高為：?=，中格柵柵后水深為 ，則污水提升泵所需靜揚(yáng)程為：H′=?=。 在主要處理構(gòu)筑物的計(jì)算階段，本設(shè)計(jì)主要對(duì)污水及污泥工藝中的主要夠處理構(gòu)筑物進(jìn)行了設(shè)計(jì)計(jì)算。謝 辭在我三個(gè)多月的畢業(yè)設(shè)計(jì)生活中，老師和同學(xué)們給予了我很多的幫助，在此我向他們表示衷心的感謝！中國(guó)市政工程西南設(shè)計(jì)研究院主編：：中國(guó)建筑工業(yè)出版社，2001[8]，化學(xué)工業(yè)出版社，2002. at the same time, nitrate and nitrite, ammonia was oxidized to at this point, the mixture in aerobic condition. By aeration zone in the downstream of the aerator, water turbulence state into a state of advection, maintained at a minimum velocity of flow, ensure that activated sludge in a suspended state ( m/s) average velocity. Microbial oxidation process consumes dissolved oxygen in water, until the value to zero in the DO, mixture in hypoxia state. 3. The CD method and application widely in the largespan tunnel, the CRD construction method in this System, BOD degradation is a continuous process, nitrification and denitrification occurred in the same pool. Because of the limitation of structure of the oxidation ditch can be effective for BOD, but phosphorus removal denitrification ability is limited. Carrousel Moseley oxidation ditch the influence factors of biological nitrogen removal Influence factors of phosphorus removal from Carrousel Moseley oxidation ditch is primarily a sludge age, nitrate concentration and substrate concentration. Research shows that when the total sludge age of 8 ~ 10 d, the lion39。 The sludge age slightly long, sludge aging, also easy to produce foam. With surface spray water or remove foam deforming agent, deforming agent monly used engine oil, kerosene, silicone oil, turnover of ~ mg/L. By increasing the sludge concentration in aeration or reduced air, also can effectively control the bubble. When the wastewater contains surface active material is large, easily removed by foam separation process or other method in advance. Also can consider adding a set of oil removal device. But the most important is the better water management, reduce the high oilbearing wastewater and other toxic wastewater into. Sludge upfloating problem When the oil content in waste water is too large, qualitative light, the whole System in the process of operation can39。 Denitrification is found, should reduce air, increasing the backflow or mud。 Chlorine bleaching powder and liquid (% ~ % in dry sludge dosing), inhibit filamentous fungi reproduction, bined with water sludge bulking control. Bubble problem Due to water with a large number of oil, processing System can39。[14]，化學(xué)工業(yè)出版社，2003[7]2002感謝所有幫助過(guò)我的人！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)工作樹立了信心。根據(jù)設(shè)計(jì)資料，水量，以及泰安市的經(jīng)濟(jì)狀況，選用A2/O工藝較為適合。設(shè)計(jì)的主要內(nèi)容包括該處理廠的污水及污泥處理工藝的比選確定，主要處理構(gòu)筑物的設(shè)計(jì)計(jì)算兩大部分。3)污水流經(jīng)量水設(shè)備的水頭損失。(3)在作高程布置時(shí)，還應(yīng)注意污水流程與污泥流程積極配合。 (5)需要排放的處理水，在常年大多數(shù)時(shí)間里能夠自流排放水體。(1) 處理構(gòu)筑物的布置應(yīng)緊湊，節(jié)約土地并便于管理；(2) 處理構(gòu)筑物的布置應(yīng)盡可能按流程順序布置，以避免管線迂回，同時(shí)應(yīng)充分利用地形以減少土方量；(3) 經(jīng)常有人工作的地方如辦公、化驗(yàn)等用房應(yīng)布置在夏季主導(dǎo)風(fēng)的上風(fēng)向，在北方地區(qū)也應(yīng)考慮朝陽(yáng)，設(shè)綠化帶與工作區(qū)隔開；(4) 構(gòu)筑物之間的距離應(yīng)考慮敷設(shè)管渠的位置，運(yùn)轉(zhuǎn)管理的需要和施工的要求，一般采用5—10m；(5) 污泥處理構(gòu)筑物應(yīng)盡可能布置成單獨(dú)的組合，以備安全，并方便管理；(6)變電所的位置應(yīng)設(shè)在耗電量大的構(gòu)筑物附近，高壓線應(yīng)避免在廠內(nèi)架空敷設(shè)；(7) 污水廠應(yīng)設(shè)置超越管以便在發(fā)生事故時(shí)，使污水能超越一部分或全部構(gòu)筑物，進(jìn)入下一級(jí)構(gòu)筑物或事故溢流管；(8) 污水和污泥管道應(yīng)盡可能考慮重力自流；(9) 在布置總圖時(shí)，應(yīng)考慮安排充分的綠化地帶，為污水處理廠的工作人員提供一個(gè)優(yōu)美舒適的環(huán)境； (10) 總圖布置應(yīng)考慮遠(yuǎn)近期結(jié)合，有條件時(shí)可按遠(yuǎn)景規(guī)劃水量布置，將處理構(gòu)筑物分為若干系列分期建設(shè)。在每根干管上設(shè)5對(duì)配氣豎管，共10條配氣豎管，全曝氣池共設(shè)40條配氣豎管。 池總寬度：B=A/h2=,有效水深h2=；設(shè)計(jì)n=2格，,() 沉砂斗容積：=其中T＝2d，X＝3m3/106m3 每個(gè)沉砂斗的容積(V0)設(shè)每一分格有2格沉砂斗，則 沉砂斗各部分尺寸：設(shè)貯砂斗底寬b1＝；斗壁與水平面的傾角60176。1．設(shè)計(jì)參數(shù)：柵前流速v1=，過(guò)柵流速v2=柵條寬度s=，格柵間隙e=10mm，格柵傾角α=60176。表2—1 兩種污泥濃縮方法比較項(xiàng)目方案一方案二主要構(gòu)筑物污泥貯泥池 濃縮、脫水機(jī)房污泥濃縮池 脫水機(jī)房主要設(shè)備濃縮池刮泥機(jī)濃縮池刮泥機(jī)、脫水機(jī)占地面積小大絮凝劑總用量?≤對(duì)環(huán)境的影響小大總土建費(fèi)用小大總設(shè)備費(fèi)用一般稍大由上表可見方案一優(yōu)于方案二，因此本工程污泥處理工藝選用污泥機(jī)械濃縮，機(jī)械脫水。本設(shè)計(jì)設(shè)置隔板式接觸池和配套的加氯、貯氯設(shè)施。流入裝置由配水槽、擋流板組成，流出裝置由流出槽與擋板組成，緩沖層的作用時(shí)避免已沉污泥被水流攪起以及緩解沖擊負(fù)荷，污泥區(qū)起貯存、濃縮和排泥作用，排泥方式有靜水壓力法、機(jī)械排泥法。 本設(shè)計(jì)的具體工藝流程如下圖：圖 2—4 A2/O 工藝流程圖 污水處理工藝1. 格柵本污水處理廠設(shè)置粗、細(xì)兩道格柵。優(yōu)點(diǎn)：(1) 水力停留時(shí)間較短，總占地面積較?。?2) 不易出現(xiàn)污泥膨脹，出水水質(zhì)較好；(3) 用于大型污水廠時(shí)運(yùn)行費(fèi)用較低；缺點(diǎn)：(1) 污泥需進(jìn)行內(nèi)回流，能耗較高；(2) 污泥滲出液需化學(xué)除磷；(3) 沼氣回收經(jīng)濟(jì)效益差。污水和活性污泥的混合液在廊道中不停地循環(huán)流動(dòng)，其水力停留時(shí)間一般較長(zhǎng)，為15—16h, 泥齡長(zhǎng)達(dá)15—30天，氧化溝工藝屬于改進(jìn)的延時(shí)曝氣活性法。SBR工藝實(shí)現(xiàn)了在同一反應(yīng)器內(nèi)完成一系列工序，其主要工序包括：流入工序：注入原污水反應(yīng)器，注滿后進(jìn)行反應(yīng)，注水方式有單純注水，曝氣，緩速攪拌三種。 設(shè)計(jì)要求要求學(xué)生進(jìn)行污水處理廠的初步設(shè)計(jì)。A2/O法又稱AAO法，是英文AnaerobicAnoxicOxic第一個(gè)字母的簡(jiǎn)稱（厭氧缺氧好氧法），是一種常用的二級(jí)污水處理工藝，可用于二級(jí)污水處理或三級(jí)污水處理，以及中水回用，具有良好的脫氮除磷效果。s quality of life and health level。因此，必須建立一座生活污水處理廠。某城鎮(zhèn)污水處理廠初步設(shè)計(jì) 洛陽(yáng)理工學(xué)院畢業(yè)設(shè)計(jì)（論文）靈寶市污水處理廠初步設(shè)計(jì)摘 要水是人類的生命之源，它孕育和滋養(yǎng)了地球上的一切生物，并從各個(gè)方面為人類服務(wù)。如不及時(shí)對(duì)產(chǎn)生的污水進(jìn)行治理，那么靈寶市的水環(huán)境污染將嚴(yán)重下去，整個(gè)市區(qū)的生活環(huán)境和生態(tài)平衡都將受到更為嚴(yán)重的破壞，而這一切的恢復(fù)將是十分緩慢的，要為之付出的代價(jià)也十分昂貴。s life and industrial and agricultural production is increasing, so protect and cherish water resources, is a mon responsibility of society as a whole. So water is the foundational natural resource and strategic economic resources, water resources security belongs to resources and economic security. Since the 80 s, a new process for biological treatment of wastewater in the research, development and application, it has been great progress in worldwide, and led to many new types of wastewater biological treatment technology. Some of these new techniques has got good application in practical engineering at home and abroad, some of which have been showing its good application prospect, receive the attention of researchers and engineers and is being constantly indepth study, their mon characteristic is high efficiency, stability, energy saving, and has the versatility of pollutant removal, most has the depth of processing such as nitrogen and phosphorus in good efficiency, and is developing in the direction of the automation control. In recent years, With the economic development of LingBao, population and industrial output also increased, the living water and industrial water demand is increasing dramatically, so will cause the increased amount of sewage, a series of water