【正文】
ry. Dyes effluent made primarily of products and intermediates crystallization of liquor, production process erosion materials and ponents, such as the sewage scouring the ground. Main have plicated ingredients, chemical oxygen demand (cod), salinity and ph high, but such biochemical sex characteristic, is one of the difficult points of industrial wastewater treatment. For paint characteristics of wastewater, wastewater treatment should be bined with production process and as few row or not discharge pollutants, and the main pollutant discharge points in setting recovery device, recycling useful material. Concerned in wastewater were shunting, greatly reduce the concentration of pollutant in the cases, centralized processing. Processing methods mainly hydrolysis acidification contact oxidation, its flocculation process treatment effect obviously better than the traditional process, low energy consumption, low amount in the characteristics of mud, and surplus sludge can direct dehydration. After traps set coagulation traps and decoloring oxidation ponds, as level 3 processing, can achieve good effluent.In this design sewage treatment with daily production scale for 450m3 / d, feed waste water: for 600mg/l, COD BOD 250mg/l, SS for 450mg/l for. According to the national effluent water integrated wastewater discharge standard (GB89781996) secondary emission standard treatment.In this design, calculation of each monomer structures such as grille, set Wells, floating pond, such as UASB, SBR size and choose the relevant blower and sewage pump. At the same time, use CAD drawing the layout, elevation layout, process flow chart and important monomer structures figure.Keywords:dyestuff wastewater;hydrolysis acidification;contact oxidation;flocculation目 錄摘 要 IAbstract I第一章 引言 1 1 2第二章 設(shè)計(jì)依據(jù)和設(shè)計(jì)內(nèi)容 5 方案選擇的原則 5. 設(shè)計(jì)依據(jù) 5 5第三章 污水處理工藝方案的確定 6 處理站選擇 6 設(shè)計(jì)要求 6 設(shè)計(jì)原則 7 工藝方案選擇 8 工藝流程 9第四章 主要處理構(gòu)筑物的設(shè)計(jì)計(jì)算 10 細(xì)格柵 10 調(diào)節(jié)池 13 水解酸化池 16 生物接觸氧化池 20 混凝反應(yīng)池 22 斜板沉淀池 25 集泥井 28 污泥的處理流程 28 污泥濃縮池 29 30 31第五章 平面和高程布置 32 32 32 33第六章 結(jié)論 35參考文獻(xiàn) 36致謝 38III 沈陽工業(yè)大學(xué)本科生畢業(yè)設(shè)計(jì)(論文)第一章 引言發(fā)展趨勢(shì)世界上任何國(guó)家的經(jīng)濟(jì)發(fā)展,都伴隨著人民生活水平的改善和城市化進(jìn)程的不斷加快。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,有能耗低、產(chǎn)泥量少的特點(diǎn),且剩余污泥可直接脫水。進(jìn)行清污分流,在廢水中污染物濃度大大降低的情況下,集中處理。,能使纖維和其他材料著色,分天然和合成兩大類。處理方法主要有,生化法,水解酸化法,好氧法,生物膜法等。沉淀池后設(shè)置混凝沉淀池和脫色氧化池,作為三級(jí)處理,可獲得較好的出水水質(zhì)。但是相應(yīng)的淡水資源的需求和消耗也在不斷增多。我國(guó)水資源總量28000多億立方米,居世界第6位,但人均水資源占有量只有2300立方米,約為世界人均水平的1/4,水資源狀況形勢(shì)嚴(yán)峻。國(guó)內(nèi)外水環(huán)境恢復(fù)與再生的實(shí)踐經(jīng)驗(yàn)表明,污水處理與再利用是通向健康水循環(huán)的橋梁。全國(guó)染料加工廠主要集中在浙江、江蘇、廣東、山東等經(jīng)濟(jì)發(fā)達(dá)、人口密集地區(qū),是紡織工業(yè)廢水處理的重點(diǎn)。其特點(diǎn)是污染物濃度高,色度深,難降解,是難處理的工業(yè)廢水之一。臭氧氧化法是一種效果非常好的方法,他對(duì)大多數(shù)的染料都有很好的去除能力,但是對(duì)硫化、還原等不溶于水的染料效果不佳。濕法氧化作為高濃度難降解有機(jī)廢水的處理技術(shù)在國(guó)外已有應(yīng)用。雖然染料廢水中的組成成分復(fù)雜,生物毒性很強(qiáng),廢水的可生化性比較差,含有有毒有害化合物,但是可以通過對(duì)特定廢水具有很強(qiáng)的適應(yīng)性和降解性的優(yōu)勢(shì)種群的選育和強(qiáng)化培養(yǎng),達(dá)到降解染料廢水中有機(jī)污染物的目的。活性污泥法工藝是一種廣泛應(yīng)用而行之有效的傳統(tǒng)污水生物處理法,也是一項(xiàng)極具發(fā)展前景的污水處理技術(shù),這體現(xiàn)在它對(duì)水質(zhì)水量的廣泛適應(yīng)性,靈活多樣的運(yùn)行方式,良好的可控制性,以及通過厭氧或缺氧區(qū)的設(shè)置使之具有生物脫氮、除磷的效能等方面?;旌虾蟮奈鬯?jīng)過活性污泥池處理 ,最后經(jīng)二沉池沉淀。水解階段,可使固體有機(jī)物質(zhì)降解為溶解性物質(zhì),大分子的有機(jī)物質(zhì)降解為小分子物質(zhì)。這是一個(gè)快速的物理過程,只需幾秒鐘到幾十秒就進(jìn)行完全。目前一般采用兩級(jí)處理方法:即物化法加生化法、生化法加氧化法,或生化法加吸附法等。(3)運(yùn)行、管理、操作方便,設(shè)備維護(hù)簡(jiǎn)便易行。(7)對(duì)有毒有害物質(zhì)具有