【正文】 本科畢業(yè)設(shè)計（論文） 3000 m3/d 印染廢水處理工藝設(shè)計 學 院 環(huán)境科學與工程學院 專 業(yè) 環(huán)境工程 年級班別 2020 級（ 1）班 學 號 3104008132 學生姓名 周彭 指導教師 江峰 付豐連 2020 年 6 月廣東工業(yè)大學 畢業(yè)設(shè)計 I 設(shè)計總說明 紡織印染行業(yè)是我國用水量較大、排放廢水量較多的工業(yè)部門之一。排放的 廢水中所用的漿料、油劑、染料和化學助凝劑等，具有成分復(fù)雜、有機物濃度中等、可生化性較差、水質(zhì)變化大、生化需氧量高、色度高、 pH 值高的特點。這樣的廢水如果不經(jīng)處理或經(jīng)處理后未達到規(guī)定排放標準就直接排放，不僅直接危害人們的身體健康，而且嚴重破壞水體、土壤及其生態(tài)系統(tǒng)。本人設(shè)計的是 3000m3/d 的印染廢水處理工藝。采用生化法 +化學法，其工藝是水解酸化 +接觸氧化 +混凝沉淀。此方法可有效的處理廢水中的 BOD， COD， pH 還有色度。特別是接觸氧化池幾乎不產(chǎn)生污泥避免了傳統(tǒng)好氧池的污泥膨脹現(xiàn)象。 關(guān)鍵詞： 印染 廢水 ，水 解酸化，接觸氧化，混凝 廣東工業(yè)大學 畢業(yè)設(shè)計 II Introduction of design The textile industry is one of the industrial sectors which consume more water and discharge more wastewater. The sizing agent, oil, dye and chemical coagulant aid discharged from the dye wastewater are characteristized by the plicated ponents, medium concentration of anic matter, variable water quality, high chroma, high COD and high pH value. In such circumstances, if the wastewater is discharged directly without treatment or with no achieving the required emission standards, it will badly harm our health directly, destroy the water, the soil and its ecosystem. My design is to treat with the dyeing wastewater of 3000 m3/d. The design adopts the biochemistrychemistry method, containing acid hydrolysis, contact oxidation, coagulation and precipitation. In this way the BOD, COD, pH and chroma can be treated effectively. Especially, the contact oxidation pond hardly produces any sludge, so it can avoid the expansion of sludge of traditional oxidation ditch. Keywords: Dyeing wastewater, Acid hydrolysis, Contact oxidation, Coagulation 廣東工業(yè)大學 畢業(yè)設(shè)計 III 目錄 1 綜述 ............................................................................................................................. 1 ................................................................................................... 1 概述 ......................................................................................................... 1 印染工藝主要工序及相關(guān)工藝要點 ..................................................... 1 印染廢水 來源和 水質(zhì)特點 .............................................................................. 2 印染廢水的處理技術(shù)概述 .............................................................................. 4 法 ..................................................................................................... 4 化學處理方法 ........................................................................................ 6 國內(nèi)外印染廢水處理情況對比 .................................................................... 14 國外印染廢水產(chǎn)生情況 ....................................................................... 14 國內(nèi)外印染廢水處理差別 .................................................................. 14 2 印染廢水處理工藝的確定 ....................................................................................... 17 工藝流程確定 ................................................................................................. 17 工藝流程說明 ................................................................................................. 17 格柵 ....................................................................................................... 17 調(diào)節(jié)池 ................................................................................................... 18 混凝反應(yīng)池： ....................................................................................... 18 沉淀池 ................................................................................................... 18 水解酸化池 ........................................................................................... 18 接觸氧化池 ........................................................................................... 18 粗濾料過濾池 ....................................................................................... 19 氧化消毒池 ........................................................................................... 19 污泥濃縮池、污泥脫水機 ................................................................... 19 3 主要構(gòu)筑物的設(shè)計計算 ........................................................................................... 20 格柵的計算 ..................................................................................................... 20 調(diào)節(jié)池的計算 ................................................................................................. 22 混凝反應(yīng)池設(shè)計 ............................................................................................. 24 豎流式沉淀池 ................................................................................................. 26 廣東工業(yè)大學 畢業(yè)設(shè)計 IV 中心管計算 ........................................................................................... 26 縫隙高度計算 ....................................................................................... 27 污泥區(qū)計算 ........................................................................................... 27 沉淀池總高度 H 計算 .......................................................................... 28 水解酸化池計算 ............................................................................................. 28 生物接觸氧化池 ............................................................................................. 30 BOD 容積負荷率 .............................................................................. 30 計算： .................................................................................................. 30 粗濾料過濾池 ................................................................................................ 33 污泥濃縮池 ..................................................................................................... 36 尺寸計算 ................................................................................