磷礦浮選廢水的處理畢業(yè)設(shè)計(jì)

1、I摘要錳是環(huán)境水質(zhì)污染物的重要重金屬監(jiān)測(cè)指標(biāo)之一，由于我國(guó)錳礦床多為中小型礦床，制約了錳礦山建設(shè)的規(guī)模，現(xiàn)有錳礦山生產(chǎn)能力普遍較小。全國(guó)年消耗1000萬噸以上，居世界首位，但我國(guó)錳礦資源相對(duì)缺乏，富礦較少，在大量錳礦的開采和深加工過程中由于設(shè)備和處理技術(shù)等各方面的制約，使我國(guó)的含錳廢料和含錳廢水污染較為嚴(yán)重。本設(shè)計(jì)含錳廢水污水處理站日處理量為1200m3d，進(jìn)水的CODCr為200mgL，pH為9.5，SS為150mgL，出水CODCr

2、為100mgL，pH為69，SS為70mgL。本設(shè)計(jì)采用石灰乳沉淀錳離子，先將石灰乳和廢水混合使廢水的pH到達(dá)9.5以上，在水中溶解氧的作用下迅速氧化為析出，加入絮凝劑，?2Mn2MnO通過初沉池、二沉池絮凝沉淀，錳離子的去除率為94.3%。該工藝處理過2MnO的出水可以達(dá)到《污水綜合排放標(biāo)準(zhǔn)——GB89781996》的一級(jí)標(biāo)準(zhǔn)。III目錄摘要...............................................

3、.................................................................................................IAbtract...................................................................................................................

4、............................II第一章總論....................................................................................................................................11.1錳的性質(zhì)及用途..........................................

5、...............................................................................11.2含錳廢水的特征、來源與危害.................................................................................................11.2.1含錳廢水的特征..............

6、...............................................................................................11.2.2含錳廢水的來源.............................................................................................................21.

7、2.3含錳廢水的危害............................................................................................................31.2.4含錳廢水治理技術(shù)的發(fā)展及研究現(xiàn)狀.........................................................................41.3結(jié)語.

8、..........................................................................................................................................11第二章設(shè)計(jì)任務(wù)說明.......................................................................

9、.............................................112.1設(shè)計(jì)依據(jù)..................................................................................................................................122.2設(shè)計(jì)原則...........................

10、.......................................................................................................122.3設(shè)計(jì)范圍和規(guī)模.........................................................................................................

11、.............132.3.1設(shè)計(jì)范圍......................................................................................................................132.3.2設(shè)計(jì)規(guī)模...................................................................

12、...................................................132.4設(shè)計(jì)進(jìn)出水水質(zhì)和基礎(chǔ)資料..................................................................................................13第三章石灰乳的制備與投加........................................

13、................................................................133.1石灰乳的配制原則..................................................................................................................143.2石灰乳的攪拌..................

14、........................................................................................................143.3石灰乳的計(jì)量.........................................................................................................

15、.................153.4石灰乳的投加..........................................................................................................................153.4.1石灰乳濃度計(jì)算........................................................

16、..................................................153.4.2投加量的計(jì)算...............................................................................................................163.4.3投加方式...................................

17、...................................................................................163.4.4計(jì)量泵的選型..............................................................................................................16第四章混凝劑的溶解與投加

18、........................................................................................................164.1投加量的計(jì)算.........................................................................................................

19、.................164.2PAC的投加...............................................................................................................................17第五章工藝流程圖及說明....................................................

20、........................................................185.1工藝流程圖...............................................................................................................................185.2工藝說明..................

21、.................................................................................................................19第六章構(gòu)筑物的設(shè)計(jì)計(jì)算..............................................................................................

22、..............206.1中和槽......................................................................................................................................206.2初沉池........................................................

23、..............................................................................206.3二沉池......................................................................................................................................

24、22第七章污水管路和阻力計(jì)算......................................................................................................237.1管路水力計(jì)算.............................................................................................

25、.............................237.1.1污水管徑計(jì)算..............................................................................................................237.1.2污泥管徑計(jì)算.......................................................

26、.......................................................247.2阻力計(jì)算..................................................................................................................................247.2.1中和槽進(jìn)水阻力計(jì)算..........