【正文】 安徽工業(yè)大學(xué) 畢業(yè)（論文）設(shè)計(jì)說明書 第 1 頁 共 64 頁 摘要 硅鋼堿廢水主要含有油和鐵屑等懸浮物，水呈堿性，常用中和、氣浮法結(jié)合生物處理的工藝達(dá)到除油降 COD 的目的。馬鋼采用了二級反應(yīng)、二級氣浮及生物接觸氧化法的工藝，此工藝出水水質(zhì)好，達(dá)到國家一級排放標(biāo)準(zhǔn)。而漣鋼的工藝采用了二級中和槽、高效澄清池和過濾器，對于含油量大的污水，除油效果并不理想。 本設(shè)計(jì)中的污水水量 200m3/h,含油量 3000mg/L， COD=1000 mg/L， SS=400 mg/L， pH=913，出水水質(zhì)要求達(dá)到國家一 級排放標(biāo)準(zhǔn)。參考馬鋼的工藝，考慮設(shè)計(jì)水量較小，采用 SBR 生物處理，其 工藝流程簡單 ， 運(yùn)轉(zhuǎn)靈活 ， 基建費(fèi)用低 ；處理效果好 ， 出水水質(zhì)穩(wěn)定 ； 具有較好的除磷脫氮效果 ； 污泥沉降性能良好 ； 對水質(zhì)水量變化的適應(yīng)性強(qiáng)。 本工藝固定投資包括土建費(fèi)、設(shè)備器材費(fèi)、安裝費(fèi)、管理費(fèi)、工程預(yù)備費(fèi)等其他費(fèi)用，工程總投資達(dá) 萬元；污水處理成本包括動力費(fèi)、勞力費(fèi)、藥劑費(fèi)、檢修維修費(fèi)、折舊費(fèi)等其他費(fèi)用，綜合成本為 元 /m3。 關(guān)鍵詞 ： 堿性廢水 SBR 反應(yīng)池 冷卻塔 經(jīng)濟(jì)性分析 安徽工業(yè)大學(xué) 畢業(yè)（論文）設(shè)計(jì)說明書 第 2 頁 共 64 頁 Abstract Alkaline siliconwastewater containing oil and iron filings and other major suspensions. Water was alkaline. Neutralization and flotation bined with biological treatment process often to used to achieve the purpose of degreasing and COD reduction. Maanshan Iron and Steel Company uses two level reactor, two level flotation and biological contact oxidation process .This process effluent quality better meeting the national emission standards. The process LIANGANG uses two level neutralization tank, high efficiency clarifiers and filters. For the high content of oilwater, degreasing is not ideal. The design rate of the sewage water is 200 m3 / h, oil content of 3000mg / L, COD = 1000 mg / L, SS = 400 mg / L, pH = 913, effluent discharge standards required to achieve the national level. Reference Maanshan Iron and Steel Company process, considering the small design rate, SBR biological treatment is used. The process is simple, flexible operation, low cost infrastructure。 treatment effect, water quality and stability。 phosphorus and nitrogen removal with good results。 sludge settlement good performance。 on adaptability to changes in water quality and quantity. The fixed investment process costs include civil engineering costs, equipment and material costs, installation fees, management fees, reserve fund and other project costs. Project total investment of million yuan。 Sewage treatment costs include power costs, labor costs, pharmacy costs, repair maintenance, depreciation fees and other costs. Overall cost is yuan / m3. Key words: alkaline water。 Reactor cooling tower 。 SBR reactor 。 Economic Analysis 安徽工業(yè)大學(xué) 畢業(yè)（論文）設(shè)計(jì)說明書 第 3 頁 共 64 頁 目錄 第 1 章 緒論 .................................................................................................................... 1 前言 ................................................................................................................... 1 硅鋼堿廢液中主要污染物 .................................................................................... 1 懸浮物 ...................................................................................................... 1 油類 .......................................................................................................... 1 硅鋼堿廢液處理方法現(xiàn)狀 .................................................................................... 2 物理法 ...................................................................................................... 2 物理化學(xué)法 ............................................................................................... 3 化學(xué)法 ...................................................................................................... 4 生物法 ...................................................................................................... 5 SBR污水生物處理技術(shù) ........................................................................................ 5 SBR的工藝流程 ......................................................................................... 5 SBR工藝的優(yōu)越性 ..................................................................................... 6 第 2 章 堿廢液處理工藝的分析與選擇 .............................................................................. 8 馬鋼硅鋼堿廢液處理工藝 ..................................................................................... 8 工藝流程 .................................................................................................... 8 堿廢水處理系統(tǒng)操作運(yùn)行方式 ................................................................... 8 漣鋼冷軋廠堿液處理工藝 .................................................................................... 9 工藝選擇 ......................................................................................................... 10 工藝流程 ................................................................................................. 10 輔助系統(tǒng) ................................................................................................. 11 第 3 章 工藝計(jì)算 ........................................................................................................... 12 概要 ................................................................................................................. 12 設(shè)計(jì)任務(wù)與目的 ....................................................................................... 12 設(shè)計(jì)原始資料 .......................................................................................... 12 藥劑和加藥設(shè)備 ....................................................................................... 12 污水提升泵 ............................................................................................. 13 污泥提升泵房 .......................................................................................... 13 設(shè)計(jì)計(jì)算 .......................................................................................................... 13 調(diào)節(jié)池 ..................................................................................................... 13 反應(yīng)池 .................................................................................................... 14 折板絮凝池 ............................................................................................. 14 一級