本文選題：江南　切入點(diǎn)：多產(chǎn)業(yè)并存型小城鎮(zhèn)　出處：《蘇州科技學(xué)院》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：小城鎮(zhèn)的發(fā)展逐漸趨向于多產(chǎn)業(yè)并存型,在多種工業(yè)企業(yè)迅猛發(fā)展的同時,其水環(huán)境污染問題也日益突出,尤其是在江南河網(wǎng)水系密集地區(qū)更為明顯,已經(jīng)引起當(dāng)?shù)卣腿罕姷母叨戎匾�。污水處理廠是城鎮(zhèn)污水處理的最后一道關(guān)口,科學(xué)地確立設(shè)計標(biāo)準(zhǔn)和選擇工藝流程不僅從根本上影響城鎮(zhèn)污水處理廠出水水質(zhì)是否達(dá)標(biāo),而且對污水處理設(shè)施建成后的運(yùn)行穩(wěn)定性、維護(hù)管理費(fèi)用也有深刻的影響。由于多產(chǎn)業(yè)并存型小城鎮(zhèn)的污水特性更為復(fù)雜不一,對其污水處理系統(tǒng)的工藝設(shè)計提出了更高的要求。本課題選擇典型江南地區(qū)多產(chǎn)業(yè)并存型小城鎮(zhèn)——昆山市巴城鎮(zhèn)石牌工商區(qū)石牌污水處理廠二期改擴(kuò)建工程設(shè)計展開研究,包括石牌污水處理廠一期工程的運(yùn)行現(xiàn)狀分析,二期工程水量的確定、進(jìn)水水質(zhì)論證分析、二期處理工藝的比選及設(shè)計參數(shù)優(yōu)化、一期處理構(gòu)筑物改造設(shè)計,最終完成工程設(shè)計。石牌污水處理廠的來水包括生活污水和多種工業(yè)為主的工業(yè)廢水,生活污水與工業(yè)污水水量比例為4:6,設(shè)計流量為1.2萬m3/d,其中一期0.5萬m3/d,二期0.7萬m3/d。根據(jù)石牌污水廠一期工程2012~2013年進(jìn)水水質(zhì)監(jiān)測數(shù)據(jù),確定設(shè)計進(jìn)水水質(zhì)主要指標(biāo)BOD5、COD、SS、TN、NH3-N、TP依次為:220mg/L、400mg/L、200mg/L、35mg/L、25mg/L、5.5mg/L。按照《太湖地區(qū)城鎮(zhèn)污水處理廠及重點(diǎn)工業(yè)行業(yè)主要水污染物排放限值》(DB32/1072-2007)限值標(biāo)準(zhǔn),確定污水廠出水指標(biāo)執(zhí)行一級A類標(biāo)準(zhǔn),處理后的水最終排放到茆沙塘。通過技術(shù)經(jīng)濟(jì)比較,最終二期工程污水處理工藝采用機(jī)械預(yù)處理——水解酸化——CASS生物處理——深度處理組合工藝;污泥采用厭氧發(fā)酵、重力濃縮、壓榨脫水的處理工藝。針對污水處理廠進(jìn)水水質(zhì)變化復(fù)雜等實際情況,對傳統(tǒng)設(shè)計參數(shù)進(jìn)行優(yōu)化調(diào)整。以CASS工藝為核心工藝并進(jìn)行詳細(xì)的工藝設(shè)計,總結(jié)出了一套具有參考價值的設(shè)計參數(shù)。其中主要構(gòu)筑物水解酸化池設(shè)計水量:1.2萬m3/d,有效容積:5000m3,停留時間8h,尺寸:28.0x25.0x7.7(H)m;CASS生物池為一座合建式綜合池,由生物選擇區(qū)、兼氧區(qū)和主反應(yīng)區(qū)三部分組成,分為4組。CASS反應(yīng)池容積比厭氧區(qū):缺氧區(qū):主反應(yīng)區(qū)=1:5:30,設(shè)計污泥負(fù)荷0.15 kg BOD5/kg MLSS·d,混合液濃度3500mg/L,污泥齡20d,污泥回流比30%~50%。CASS池反應(yīng)區(qū)總有效池容V=4666m3;單格有效容積V單=1167m3。CASS反應(yīng)池單池設(shè)計尺寸:L×B×H=30.0×8.0×6.0m;有效水深5.0m;潷水高度1.25m。最后從工程經(jīng)濟(jì)、能耗和環(huán)保三方面對工程效益進(jìn)行了分析。石牌污水處理廠在改造期間,保證了一期工程的穩(wěn)定運(yùn)行,二期工程調(diào)試出水水質(zhì)也穩(wěn)定達(dá)標(biāo),運(yùn)行數(shù)據(jù)表明,污水處理系統(tǒng)對BOD5、COD、SS、NH3-N和磷具有較好的去除效果,各項指標(biāo)均滿足《太湖地區(qū)城鎮(zhèn)污水處理廠及重點(diǎn)工業(yè)行業(yè)主要水污染物排放限值》(DB32/1072-2007)限值標(biāo)準(zhǔn),而且具有較高的耐沖擊負(fù)荷能力。處理系統(tǒng)每年可削減COD 1635噸、SS 902噸、NH3-N 127噸、總磷18噸以上。以CASS工藝為核心的機(jī)械預(yù)處理——水解解酸化——CASS生物處理——深度處理工藝適用于河網(wǎng)密集地區(qū)的多產(chǎn)業(yè)并存型小城鎮(zhèn)污水的處理,針對石牌污水處理廠進(jìn)行的工藝參數(shù)調(diào)整是成功的,設(shè)計經(jīng)驗可為同類型城鎮(zhèn)污水廠提供參考和借鑒。
[Abstract]:The development of small towns tend to coexist in a variety of industries, the rapid development of the industrial enterprises at the same time, the water pollution problems have become increasingly prominent, especially in the south of the Yangtze River water network intensive areas is more obvious, has attracted great attention of the local government and the masses. The sewage treatment plant is the last step of urban sewage treatment the establishment of scientific design standards and the selection process is not only fundamentally influence whether the standard of urban sewage treatment plant effluent quality and operation stability of the completion of the sewage treatment facilities, maintenance costs also have a profound effect. Because the sewage industry characteristics of small towns is more complex and more forward higher requirements on the sewage treatment system process design. This paper chooses multi industry typical Jiangnan region coexist small town - Kunshan City Shipai Shipai town business district. Plant two expansion project design of water treatment, including the analysis of the status quo of a project Pai sewage treatment plant, the two phase of the project to determine the water, water quality analysis, two stage treatment process selection and optimization of design parameters, a building renovation design, the final completion of water engineering design. The sewage treatment plant on sewage and industrial wastewater including various industries, domestic sewage and industrial sewage water ratio of 4:6, the design flow is 12 thousand m3/d, including a 5 thousand m3/d, two m3/d. 7 thousand according to the 2012~2013 project of sewage treatment plant in Shipai influent water quality monitoring data, determine the design influent water quality indices BOD5 COD, SS, TN, NH3-N, TP were: 220mg/L, 400mg/L, 200mg/L, 35mg/L, 25mg/L, 5.5mg/L. in accordance with the "Taihu area factory and key industries of urban sewage treatment and water pollutant emission limit value > ( DB32/1072-2007) limit standard, determine the sewage plant effluent indicators perform a class standard, the treated water is exhausted to Mao Sha Tang. By comparison of technology and economy, the final phase two project of sewage treatment process using mechanical pretreatment, hydrolysis acidification and CASS biological treatment -- combination of advanced treatment process; sludge by anaerobic fermentation, gravity concentration treatment process, squeeze dewatering. For the sewage treatment plant influent water quality change the complexity of the actual situation, to adjust and optimize the traditional design parameters. Using CASS technology as the core technology and the detailed design process, a set of reference value of design parameters is summarized. The main structures of the hydrolytic acidification tank design of water: 12 thousand m3/d, the effective volume: 5000m3, time 8h, size: 28.0x25.0x7.7 (H) m; CASS is a biological tank combined integrated tank by biological selection area, anoxic zone and the main counter Should be composed of three parts, divided into 4 groups of.CASS reactor volume ratio of anaerobic zone: anoxic zone: =1:5:30 the main reaction zone, the design of BOD5/kg MLSS sludge load of 0.15 kg - D, the concentration of the mixture was 3500mg/L, sludge age 20d, sludge reflux ratio 30%~50%.CASS pool pool total effective reaction zone containing V=4666m3 cells; effective volume V single =1167m3.CASS the design of single reaction tank pool size: L * B * H=30.0 * 8 * 6.0m; effective depth 5.0m; decanting height 1.25M. finally from the engineering economy, energy consumption and environmental protection three aspects of the analysis of the benefits of the project. Pai sewage treatment plants in the transformation period, to ensure stable operation of the first phase of the project, the two phase of the project commissioning of water the water quality is stable and standard, operation data show that the sewage treatment system of BOD5, COD, SS, NH3-N and phosphorus has good removal effect, the indicators meet the < Taihu sewage treatment plants and key industries of major water pollutant discharge limits Value > (DB32/1072-2007) standard limit, but also has high resistance to impact load. The annual processing system can reduce COD SS 1635 tons, 902 tons, 127 tons of NH3-N, total 18 tons. To CASS technology as the core of the mechanical pretreatment solution hydrolysis acidification CASS biological treatment - treatment technology in depth brooky area multi industry small town sewage treatment process parameter adjustment for Pai sewage treatment plant is successful, design experience can provide reference for the same type of urban sewage treatment plant.

【學(xué)位授予單位】：蘇州科技學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X703

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張卉;李偉光;田文德;;改進(jìn)型A~2/O工藝處理城市生活污水的脫氮除磷效能研究[J];環(huán)境污染與防治;2012年03期

2 戴曉虎;;我國城鎮(zhèn)污泥處理處置現(xiàn)狀及思考[J];給水排水;2012年02期

3 左金星;曹長春;崔峗璐;黃文華;;南方小城鎮(zhèn)污水處理現(xiàn)狀和發(fā)展探討[J];水科學(xué)與工程技術(shù);2011年06期

4 簡新華;黃錕;;中國城鎮(zhèn)化水平和速度的實證分析與前景預(yù)測(英文)[J];中國特色社會主義研究;2011年S2期

5 於方;牛坤玉;曹東;王金南;;基于成本核算的城鎮(zhèn)污水處理收費(fèi)標(biāo)準(zhǔn)設(shè)計研究[J];中國環(huán)境科學(xué);2011年09期

6 梁佳;曹明明;;印染廢水特點(diǎn)及其處理技術(shù)[J];地下水;2011年02期

7 簡新華;黃錕;;中國城鎮(zhèn)化水平和速度的實證分析與前景預(yù)測[J];經(jīng)濟(jì)研究;2010年03期

8 陳中穎;劉愛萍;劉永;許振成;;中國城鎮(zhèn)污水處理廠運(yùn)行狀況調(diào)查分析[J];環(huán)境污染與防治;2009年09期

9 樊紅輝;林華東;花勇剛;;CASS工藝脫氮影響因素分析[J];環(huán)境科學(xué)與管理;2009年08期

10 高廷東;盧繼承;林貞賢;;水解酸化/CASS工藝處理腸衣廢水[J];中國給水排水;2009年04期

，

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