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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="o8t97oq" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海鋼結(jié)構(gòu)可拆裝水處理工廠,水處理</p><p><span>***更新：</span>2020-12-18 00:23:15</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qfxumtv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海益源環(huán)保科技有限公司</a></p><p><span>聯(lián)系人：</span>袁總</p><p><span>郵箱: </span>15800628818@126.com</p><p><span>電話: </span>15800628818</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shyy88188.com</p><p><span>手機(jī): </span>021-56511181</p><p><span>地址: </span>滬太路4199號(hào)1號(hào)廠房</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m7x4g8y" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="e23iac8" class="box"><p><p style="text-indent:25px">在古時(shí)候，當(dāng)時(shí)的人類沒(méi)有先進(jìn)的水處理技術(shù)，為了降低疾病的水傳播，他們便是采用簡(jiǎn)單的格柵截留和自然沉降等方法進(jìn)行水處理。隨后，經(jīng)過(guò)多年觀察和總結(jié)，他們也是發(fā)現(xiàn)了用砂子可以過(guò)濾掉細(xì)微懸浮物的方法，進(jìn)而出現(xiàn)了藥劑混凝預(yù)處理。隨著人類文明的不斷進(jìn)步，上海鋼結(jié)構(gòu)可拆裝水處理工廠，人類產(chǎn)生的垃圾以及對(duì)環(huán)境的大肆破壞，導(dǎo)致了水資源受到嚴(yán)重污染。當(dāng)各種傳染病通過(guò)水傳播，致使不少人染病或者死亡的時(shí)候，上海鋼結(jié)構(gòu)可拆裝水處理工廠，人們才是發(fā)現(xiàn)水處理是何等的重要，上海鋼結(jié)構(gòu)可拆裝水處理工廠。也正是如此，人們才逐漸開(kāi)始研究水處理技術(shù)。由于原水所含的雜質(zhì)和成品水可允許的雜質(zhì)在種類和濃度上差別很大，水處理過(guò)程差別也很大。上海鋼結(jié)構(gòu)可拆裝水處理工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鋼結(jié)構(gòu)可拆裝水處理工廠,水處理" src="https://tyunfile.71360.com/UploadFile/yiyuan888/637330299520097657/7131850.png"></div><p style="text-indent:25px">陰離子交換樹(shù)脂與各陰離子的親合力強(qiáng)度如下：S02-4+>I->NO3->NO2->Cl->HCO3->OH->F-如果陰離子交換樹(shù)脂消耗殆盡而沒(méi)有還原，則吸附力較弱的氟就會(huì)逐漸出現(xiàn)在透析用水中，造成軟骨病，骨質(zhì)疏松癥及其它骨病變；如果陽(yáng)離子交換樹(shù)脂消耗盡了，氫離子也會(huì)出現(xiàn)在透析用水之中，造成水質(zhì)酸性的增加，所以去離子功能是否有效，需要時(shí)常監(jiān)視。一般是*水質(zhì)的電阻系數(shù)（resistivity）或傳導(dǎo)度（conductivity）來(lái)判斷。去離子法所使用的離子交換樹(shù)脂同樣也會(huì)造成細(xì)菌的繁殖引起菌血癥，這是值得注意的一點(diǎn)。上海鋼結(jié)構(gòu)可拆裝水處理工廠水處理對(duì)水源水或不符合用水水質(zhì)要求的水，采用物理、化學(xué)、生物等方法改善水質(zhì)的過(guò)程。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鋼結(jié)構(gòu)可拆裝水處理工廠,水處理" src="https://tyunfile.71360.com/UploadFile/yiyuan888/637330299525244141/5165621.png"></div><p style="text-indent:25px">硬水軟化硬水的軟化需使用離子交換法，它的目的是利用陽(yáng)離子交換樹(shù)脂以鈉離子來(lái)交換硬水中的鈣與鎂離子，以此來(lái)降低水源內(nèi)之鈣鎂離子的濃度。其軟化的反應(yīng)式如下：Ca2++2Na-EX→Ca-EX2+2Na+1Mg2++2Na-EX→Mg-EX2+2Na+1title式中的EX表示離子交換樹(shù)脂，這些離子交換樹(shù)脂結(jié)合了Ca2+及Mg2+之後，將原本含在其內(nèi)的Na+離子釋放出來(lái)。樹(shù)脂基質(zhì)（resin matrix）內(nèi)藏氯化鈉，在硬水軟化的過(guò)程中，鈉離子會(huì)逐漸被使用耗盡，則交換樹(shù)脂的軟化效果也會(huì)逐漸降低，這時(shí)需要作還原（regeneration）的工作，也就是每隔固定時(shí)間加入特定濃度的鹽水，一般是10%，其反應(yīng)方式如下：Ca-EX2+2Na+ （濃鹽水）→ 2Na-EX+Ca2+Mg-EX2+2Na+ （濃鹽水）→ 2Na-EX+Mg2+</p><p> 用于輸水的無(wú)內(nèi)襯鋼、鑄鐵或球墨鑄鐵管的外腐蝕是由管道所處的周圍土壤化學(xué)環(huán)境引起的，其中包括較低的pH值、鹽分、低電阻率和細(xì)菌存在等不同的參數(shù)，所有這些都能引起腐蝕。腐蝕的發(fā)生還需要氧氣的存在，而氧氣通?？梢匀芙庠谒?；因此，潮濕的土壤會(huì)讓未受保護(hù)的鋼材發(fā)生腐蝕。陰極保護(hù)(CP)是一種防腐蝕技術(shù)，利用犧牲陽(yáng)極保護(hù)金屬或鋼筋混凝土管道的外部，使金屬處于惰性或無(wú)反應(yīng)狀態(tài)，從而避免發(fā)生腐蝕。CP系統(tǒng)監(jiān)測(cè)和維護(hù)得當(dāng)?shù)脑?，管道外表面就不?huì)發(fā)生腐蝕。污水處理及其再生利用，其他水處理、利用與分配等三大類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鋼結(jié)構(gòu)可拆裝水處理工廠,水處理" src="https://tyunfile.71360.com/UploadFile/yiyuan888/637330299683642578/5384833.png"></div><p style="text-indent:25px">活性炭是由木頭，殘木屑，水果核，椰子殼，煤炭或石油底渣等物質(zhì)在高溫下乾餾炭化而成，制成後還需以熱空氣或水蒸氣加以活化。它的主要作用是去除氯與氯氨以及其它分子量在60到300道爾頓的溶解性有機(jī)物質(zhì)?；钚蕴康谋砻娉暑w粒狀，內(nèi)部是多孔的，孔內(nèi)有許多約1Onm~lA大小的毛細(xì)管，1g的活性炭?jī)?nèi)部表面積高達(dá)700-1400m2，而這些毛細(xì)管內(nèi)表面及顆粒表面就是吸附作用之所在。影響活性炭去除有機(jī)物能力的因素有活性炭本身的面積，孔洞大小以及被去除有機(jī)物的分子量及其極性（Polarity），它主要*物理的吸附能力來(lái)排除雜物，當(dāng)吸附能力達(dá)飽合之後，吸附過(guò)多的雜質(zhì)就會(huì)掉落下來(lái)污染下游的水質(zhì)，所以必須定時(shí)利用逆沖的方式來(lái)去除吸附其上的雜質(zhì)。這種活性炭濾器如果吸附能力明顯下降，必須更新。測(cè)定進(jìn)水及出水的TOC濃度差（或細(xì)菌數(shù)量差）是考量更換活性炭的依據(jù)之一。有些逆滲透膜對(duì)氯的耐受性不佳，所以在逆滲透之前要有活性碳的處理，使氯能夠有效的被活性炭吸附，但是活性碳上的孔洞吸附的細(xì)菌容易繁殖滋長(zhǎng)，同時(shí)對(duì)於分子較大有機(jī)物的去除，活性炭的功效有限，所以必須*逆滲透膜在後面補(bǔ)強(qiáng)。水處理對(duì)發(fā)展工業(yè)生產(chǎn)、提高產(chǎn)品質(zhì)量，保護(hù)人類環(huán)境、維護(hù)生態(tài)平衡具有重要的意義。上海鋼結(jié)構(gòu)可拆裝水處理工廠</p><p style="text-indent:25px">經(jīng)常用到的水處理藥劑有：聚合氯化鋁、聚合氯化鋁鐵、堿式氯化鋁，聚丙烯酰胺，活性炭及各種濾料等。上海鋼結(jié)構(gòu)可拆裝水處理工廠</p><p style="text-indent:25px">反滲透法可以有效的去除溶解於水中的無(wú)機(jī)物，有機(jī)物，細(xì)菌，熱原及其它顆粒等，是透析用水之處理中較重要的一環(huán)。要了解"反滲透"原理之前，要先解釋"滲透（osmosis）的觀念。所謂滲透是指以半透膜隔開(kāi)兩種不同濃度的溶液，其水中溶質(zhì)不能透過(guò)半透膜，則濃度較低的一方水分子會(huì)通過(guò)半透膜到達(dá)濃度較高的另一方，直到兩側(cè)的濃度相等為止。在還沒(méi)達(dá)到平衡之前，可以在濃度較高的一方逐漸施加壓力，則前述之水分子移動(dòng)狀態(tài)會(huì)暫時(shí)停止，此時(shí)所需的壓力叫作 "滲透壓 (osmotic pressure)"，如果施加的力量大於滲透壓時(shí)，則水份的移動(dòng)會(huì)反方向而行，也就是從高濃度的一側(cè)流向低濃度的一側(cè)，這種現(xiàn)象就叫作"反滲透"。反滲透的純化效果可以達(dá)到離子的層面，對(duì)於單價(jià)離子（monovalent ions）的排除率（rejection rate）可達(dá)90%-98%，而雙價(jià)離子（divalent ions）可達(dá)95%-99%左右（可以防止分子量大於200道爾敦的物質(zhì)通過(guò)）。上海鋼結(jié)構(gòu)可拆裝水處理工廠</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2445759.html</p></div></div></div></div></div><div id="fjbd3tq" class="page-right twoColRt"><div id="i7cwdah" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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