【正文】 河海大學(xué)環(huán)境工程畢業(yè)設(shè)計(jì) 第 1 頁 共 66 頁 5000m3/d 印染廢水處理工程設(shè)計(jì) 摘 要 本設(shè)計(jì)中，污水處理規(guī)模為日處理生產(chǎn)廢水 5000m3/d，進(jìn)水水質(zhì)： COD 為 900mg/L， BOD為 250mg/L , SS 為 180mg/L，色度為 400 度， pH 為 6， NH3N 為 30mg/L。出水水質(zhì)達(dá)到《 紡織染整工業(yè)水污染物排放標(biāo)準(zhǔn) 》（ DB 32/6702021）中規(guī)定的排放的要求，即 COD≤100mg/L，BOD≤25mg/L， SS≤70mg/L，色度 ≤40 度， pH 為 6~9， NH3N≤15mg/L。 印染廢水具有色度高， COD、 BOD 含量高，成分復(fù)雜，水質(zhì)、水量變化劇烈等特點(diǎn)。因?yàn)橛∪緩U水屬 于難降解的廢水，所以本設(shè)計(jì)采用水解酸化提高廢水的可生化性。經(jīng)過方案比選，本設(shè)計(jì)采用 水解酸化 接觸氧化 混凝工藝 ， 其處理效果明顯優(yōu)于傳統(tǒng)工藝，對 BOD、COD、 SS 有很好的處理效果，并具有能耗低、產(chǎn)泥量少的特點(diǎn)，且剩余污泥可直接脫水。沉淀池后設(shè)置混凝沉淀池，作為三級(jí)處理，可獲得較好的出水水質(zhì)，使廢水達(dá)標(biāo)排放。 經(jīng)技術(shù)經(jīng)濟(jì)分析， 此方案投資總額 116 萬元，廢水處理成本為 元 /m3，有著良好的經(jīng)濟(jì)效益和社會(huì)效益。且節(jié)約用地、提高綠化、降低能耗的理念在設(shè)計(jì)中得到充分的實(shí)踐，符合新時(shí)代環(huán)保的要求。 關(guān)鍵詞： 印染廢水 水解酸化 生物接觸氧化 混凝沉淀 河海大學(xué)環(huán)境工程畢業(yè)設(shè)計(jì) 第 2 頁 共 66 頁 5000m3/d 印染廢水處理工程設(shè)計(jì)Abstract In this design, the scale of sewage treatment is to dispose wastewater 5000m3 / d, water quality: COD 900mg / L to 250mg / L, BOD, SS 180mg / L, the color is 400 degrees, pH, NH3N is 30mg / L Water quality can meet the emissions requirements specified in the textile industry standards for water pollutants (DB 32/6702021), that of COD ≤ 100 mg / L of BOD ≤ 25mg / L, SS ≤ 70mg / L, and chroma ≤ 40 degrees, pH 6 ~ 9, NH3N ≤ 15 mg / L. High color printing and dyeing wastewater, the COD, high content of BOD, plex position, water quality and quantity of rapid change and so on. Dyeing wastewater is biodegradable wastewater, so the design uses a hydrolysis acidification to improve the wastewater biodegradability. After the program than the election, this design uses a hydrolysis acidification contact oxidation coagulation process, the treatment effect was better than the traditional process, BOD, COD, the SS has a good treatment effect, and has low energy consumption, sludge production is less features, and excess sludge can be dehydration. Set after coagulation and sedimentation, sedimentation tanks, as a tertiary treatment, to obtain better water quality, wastewater discharge standards. Technical and economic analysis of this scenario, the total investment of 116 million wastewater treatment cost is / m3, has a good economic and social benefits. And land conservation, and increase afforestation, the idea of reducing energy consumption in the design to be fully practice, in line with the requirements of a new era of environmental protection. Keywords: printing and dyeing wastewater 。 hydrolysis acidification 。 biological oxidation 。 coagulation and sedimentation 河海大學(xué)環(huán)境工程畢業(yè)設(shè)計(jì) 第 3 頁 共 66 頁 5000m3/d 印染廢水處理工程設(shè)計(jì)目 錄 第一篇 設(shè)計(jì)說明書 ................................................................ 5 1 概述 ....................................................................... 5 設(shè)計(jì)任務(wù) ............................................................. 5 設(shè)計(jì)依據(jù) ............................................................. 5 區(qū)域 概況 ............................................................. 6 2 污水處理方案設(shè)計(jì) ........................................................... 6 規(guī)模與處理程度的確定 ................................................. 6 污水處理方案的確定 ................................................... 6 3 污水處理廠工藝設(shè) 計(jì) ........................................................ 11 污水處理構(gòu)筑物的設(shè)計(jì) ................................................ 11 污泥處理系統(tǒng)設(shè)計(jì) .................................................... 18 4 污水處理廠總體布置 ........................................................ 19 平面布置及總平 面圖 .................................................. 19 各構(gòu)筑物高程布置 .................................................... 21 5 工程概算與成本分析 ........................................................ 22 工程概況 ............................................................ 22 編制依據(jù) ............................................................ 22 編制原則 ............................................................ 22 投資概算 ............................................................ 23 6 廠區(qū)概況 .................................................................. 23 廠區(qū)污水 ............................................................ 23 噪聲 ................................................................ 23 固體廢棄物 .......................................................... 24 安全生產(chǎn)和消防設(shè)施 .................................................. 24 經(jīng)營管理 ............................................................ 25 人員編制 ............................................................ 25 7 結(jié)論及建議 ................................................................ 25 8 參考文獻(xiàn) .................................................................. 26 第二篇 設(shè)計(jì)計(jì)算書 ............................................................... 27 1 設(shè)計(jì)資料 .................................................................. 27 河海大學(xué)環(huán)境工程畢業(yè)設(shè)計(jì) 第 4 頁 共 66 頁 5000m3/d 印染廢水處理工程設(shè)計(jì) 設(shè)計(jì)題目和任務(wù) ...................................................... 27 設(shè)計(jì)進(jìn)出水水質(zhì)及處理程度 ............................................ 27 污水處理工藝流程 .................................................... 28 2 污水 處理構(gòu)筑物設(shè)計(jì)計(jì)算 .................................................... 28 格柵 ................................................................ 28 提升泵 .............................................................. 31 調(diào)節(jié)池 .............................................................. 31 水解酸化池 .......................................................... 33 生物接觸氧化池 ...................................................... 35 豎流式沉淀池 ........................................................ 40 .......................................................... 44 混凝沉淀池 ...................................