【正文】 克拉瑪依職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）第 0 頁(yè) 共 36 頁(yè)克拉瑪依職業(yè)技術(shù)學(xué)院畢業(yè)論文題 目 混凝沉降法對(duì)廢水處理的實(shí)驗(yàn)研究 學(xué) 號(hào) 11031249 學(xué) 生 鮑海博 班 級(jí) 石化 1131 指導(dǎo)教師 高荔 完成日期 202265 克拉瑪依職業(yè)技術(shù)學(xué)院制二○一四年六月克拉瑪依職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）第 1 頁(yè) 共 36 頁(yè) 混凝沉淀法對(duì)選礦廢水處理的實(shí)驗(yàn)研究 摘要：選礦廢水中含有各種有害的懸浮物、金屬離子等，若直接排放，將對(duì)環(huán)境造成嚴(yán)重污染。因此，選礦廢水處理是選礦工業(yè)中不可缺少的環(huán)節(jié)。本實(shí)驗(yàn)以聚合氯化鋁與聚丙烯酰胺混凝劑聯(lián)合使用的方法對(duì)廢水進(jìn)行處理實(shí)驗(yàn)研究。采用單因素分析方法確定各因素最優(yōu)范圍，、聚合氯化鋁用量22mL、沉降時(shí)間5min、%。出水水質(zhì)分析表明，聚合氯化鋁和非離子型聚丙烯酰胺聯(lián)合使用的出水水質(zhì)要比單一使用聚合氯化鋁的出水水質(zhì)要好，達(dá)到了工業(yè)排放和回用要求。 關(guān)鍵詞：廢水 單因素 正交試驗(yàn) 混凝劑克拉瑪依職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）第 2 頁(yè) 共 36 頁(yè)EXPERIMENTAL STUDY ON TREATMENT OF BENEFICIATIONWASTEWATER BY COAGULATION AND SEDIMENTATION METHODABSTRACTAbstract: containing mineral processing reagents, various harmful suspended matter, metal ions concentration in the waste water, if the direct emissions, will cause serious pollution to the environment. Therefore, ore dressing wastewater treatment is an indispensable link in the mineral processing industry. Methods in this experiment, polyaluminum chloride and polyacrylamide coagulants used for processing experimental study on Chengde Shuangluan district a mineral processing wastewater. Using single factor analysis method to determine the optimal range of each factor, according to orthogonal experiment to determine the nonionic polyacrylamide dosage , polymerization aluminum chloride dosage 22mL, settling time 5min, pH value , can make the treatment of sewage transmission ratio reaches %. Analysis showed that water quality, better effluent quality polyaluminium chloride and nonionic polyacrylamide bined use than single use of polyaluminium chloride water quality, achieve industrial discharge and reuse requirements. KEY WORDS: beneficiation wastewater single factor orthogonal test coagulant克拉瑪依職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)（論文）第 3 頁(yè) 共 36 頁(yè)目錄1 前言 ..............................................................................................................................................................5 選礦廢水的特點(diǎn)及危害 ....................................................................................................................5 選礦廢水的處理方法 ........................................................................................................................5 混凝沉淀法 ...........................................................................................................................5 酸堿廢水中和處理法 ...........................................................................................................7 化學(xué)氧化法 .............................................................................................................................8 人工濕地法 ...........................................................................................................................9 吸附法 .................................................................................................................................10 課題研究的意義及內(nèi)容 ..................................................................................................................112 實(shí)驗(yàn)部分 .....................................................................................................................................................12 選礦廢水 ..........................................................................................................................................12 實(shí)驗(yàn)儀器 ..........................................................................................................................................12 實(shí)驗(yàn)試劑 ..........................................................................................................................................12 實(shí)驗(yàn)原理 ..........................................................................................................................................12 聚合氯化鋁（PAC）沉降原理 ...........................................................................................12 聚丙烯酰胺（PAM）沉降原理 ...........................................................................................13 試驗(yàn)內(nèi)容 ..........................................................................................................................................13 試驗(yàn)方法 ..........................................................................................................................................13 配制試劑 .............................................................................................................................13 濁度測(cè)定實(shí)驗(yàn)試劑配制 .........................................................................................13 絮凝沉降實(shí)驗(yàn)試劑配制 .........................................................................................15 實(shí)驗(yàn)步驟 .............................................................................................................................15 自然沉降法 ................................................................................................................15 絮凝沉降法 .............................................................................................................153 實(shí)驗(yàn)結(jié)果與討論 ........................................................................................................................................16 自然沉降與混凝沉降法處理污水的考察 ......................................................................................16 聚丙烯酰胺和聚合氯化鋁聯(lián)合使用的混凝沉降法對(duì)選礦廢水的處理研究 ..............................16 單因素考察方法 .................................................................................................................17 聚合氯化鋁(PAC)對(duì)加量對(duì)透射比和出水率的影響 ..............................................17 聚丙烯酰胺加量對(duì)透射比和出水率的影響 ............................................................17 沉降時(shí)間對(duì)透射比和出水率的影響 ........................................................................18 pH 值對(duì)透射比和出水率的影響 ......................................