南京怎么解決高濃度總氮廢水推薦咨詢普羅生物技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="污水處理如何控制總氮超標：1、化學法去除總氮，先測試總氮的濃度，如果濃度差值不大，建議直接用氨氮去除劑處理，這樣氨氮處理下來了，總氮也會隨之降低（PS:氨氮去除劑只適用于去除總氮中的氨氮，南京怎么解決高濃度總氮廢水，而總氮和氨氮的比例會根據(jù)"><meta name="keywords" content="南京怎么解決高濃度總氮廢水,總氮"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>南京怎么解決高濃度總氮廢水,總氮</p><p><span>***更新：</span>2021-01-17 03:08:44</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="lxiopal" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">普羅生物技術(shù)（上海）有限公司</a></p><p><span>聯(lián)系人：</span>楊明浩</p><p><span>郵箱: </span>yminghao@bhnchina.com</p><p><span>電話: </span>18221034638</p><p><span>傳真: </span>021_68917228</p><p><span>網(wǎng)址: </span>https://www.probiotic.com.cn</p><p><span>手機: </span>021-68917101</p><p><span>地址: </span>上海市浦東新區(qū)金港路211號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="tvlwqgm" class="page-proshow02"><p class="title">詳細說明</p><div id="tqmnoea" class="box"><p><p style="text-indent:25px">污水處理如何控制總氮超標：1、化學法去除總氮，先測試總氮的濃度，如果濃度差值不大，建議直接用氨氮去除劑處理，這樣氨氮處理下來了，總氮也會隨之降低（PS:氨氮去除劑只適用于去除總氮中的氨氮，南京怎么解決高濃度總氮廢水，而總氮和氨氮的比例會根據(jù)水質(zhì)不一樣而有所不同，所以使用的處理效果不一，也根據(jù)實際情況判斷）2、?污水廠內(nèi)的生物脫氮反應(yīng)是一個兩段式反應(yīng)過程，在每一段進行合理的工藝控制，從而使出水總氮合格達標。這也是總氮的控制難點，南京怎么解決高濃度總氮廢水，在污水廠中實現(xiàn)總氮的控制達標，首先要了解生物脫氮的反應(yīng)機理，南京怎么解決高濃度總氮廢水，然后有選擇的進行工藝管控。污水總氮超標的原因:污泥負荷與污泥齡由于生物硝化是生物反硝化的前提。南京怎么解決高濃度總氮廢水</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京怎么解決高濃度總氮廢水,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360428846591797/9359922.png"></div><p style="text-indent:25px">短程硝化反硝化工藝：?短程硝化反硝化是將硝化控制在HNO2階段而終止，隨后進行反硝化，其生物脫氮過程如：NH+4——HNO2?——N2?短程生物脫氫工藝的優(yōu)點：可節(jié)省氧供應(yīng)量約25%,降低了能耗;節(jié)省反硝化所需碳源40%,在C/N比一定的情況下，提高了TN去除率;減少污泥生成量可達50%;減少投堿量，縮短反應(yīng)時間。但是短程硝化反硝化的缺點是不能夠長久穩(wěn)定地維持HNO2積累。同時硝化反硝化工藝：?所謂同時硝化反硝化工藝就是硝化反應(yīng)和反硝化反應(yīng)在同一反應(yīng)器中，相同操作條件下同時發(fā)生的現(xiàn)象。同時硝化反硝化過程由于是在一個反應(yīng)器中進行，它具有如下優(yōu)點：完全脫氮，強化磷的去除;降低曝氣量，節(jié)省能耗并增加設(shè)備處理負荷，減少堿度的能耗;簡化系統(tǒng)的設(shè)計和操作，同時硝化反硝化工藝的不足之處就是影響因素較多，過程難以控制。目前荷蘭、丹麥、意大利等國已有污水廠在利用同時硝化反硝化脫氫工藝運行。?綜上，生物法處理氨氮污水較穩(wěn)定，但一般要求氨氮濃度在400mg/L以下，總氮去除率可達70%～95%。南京怎么解決高濃度總氮廢水水中的總氮含量是衡量水質(zhì)的重要指標之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京怎么解決高濃度總氮廢水,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360429025468750/1174438.png"></div><p style="text-indent:25px">測量系統(tǒng)的凈化：每次測定之前，將反應(yīng)瓶蓋插入裝有約5ml 水的清洗瓶中，通入載氣，凈化測量系統(tǒng)，調(diào)整儀器零點。測定后，水洗反應(yīng)瓶蓋和砂芯。標準曲線的繪制：取0.00、0.50、1.00、1.50、2.00、2.50ml 硝酸鹽氮標準使用液，分別置于樣品反應(yīng)瓶中，加水釋至2.5ml，加入2.5ml 鹽酸，放入加熱架，于70℃±2℃水浴中加熱10min。逐個取出樣品反應(yīng)瓶，立即與反應(yīng)瓶蓋密閉，趁熱用定量加液器加入0.5ml 三氯化鈦，通入載氣，依次測定各標準溶液的吸光度，以吸光度與所對應(yīng)的硝酸鹽氮的量（μg）繪制校準曲線。水樣的測定;取待測試樣2.5ml 置于樣品反應(yīng)瓶中，以下操作同10.2 校準曲線的繪制。測定水樣前，測定空白樣，進行空白校正。</p><p style="text-indent:25px">水質(zhì)總氮的測定方法主要有：1.堿性過硫酸鉀紫外分光光度法（HJ 636-2012）。2.氣相分子吸收光譜法：在規(guī)定的分析條件下，將待測成分轉(zhuǎn)變成氣態(tài)分子載入測量系統(tǒng)，測定其對特征光譜吸收的方法。該方法主要應(yīng)用于實驗室。3.也有采用氨氮、硝酸根、亞硝酸根分別進行測量，然后將結(jié)果累加值作為總氮的測量結(jié)果。在環(huán)境地表水、水質(zhì)監(jiān)測領(lǐng)域，堿性過硫酸鉀紫外分光光度法以及優(yōu)化方法是當前的主要方法。檢測范圍：1.HJ 636-2012本標準適用于地表水、水庫、湖泊、江河水中總氮的測定。檢出限0.050mg/L，測定0.200mg/L，測定上限100mg/L。生化法多以活性污泥為主，適用性也較強，可以處理低濃度廢水。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京怎么解決高濃度總氮廢水,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360428515439454/3526473.png"></div><p style="text-indent:25px">廢水中總氮的構(gòu)成：總氮元素主要由氨氮、有機氮、硝態(tài)氮、亞硝態(tài)氮以及氮氧化合物組成，其中氨氮主要來自于氨水以及諸如氯化銨等無機物。有機氮主要來自于一些有機物中的含氮基團，比如有機胺類等。氮氧化合物諸如一氧化氮以及二氧化氮等是有毒氣體，由于狀態(tài)不穩(wěn)定，一般很少存在。硝態(tài)氮在自然界中比較穩(wěn)定，且含量較高，比如**工業(yè)ZhaYao制造過程中大量用作為原料，機械化學等工業(yè)使用大量與相關(guān)的原材料作為氧化劑，同時很多污水通過前期生化以及硝化以后也含有大量的總氮，因為硝態(tài)氮十分穩(wěn)定，且極易溶解于水，因此污染十分嚴重，極易擴散。在反硝化過程即可采用強化HDN高效脫氮設(shè)備，通過對填料、結(jié)構(gòu)、布水的優(yōu)化，實現(xiàn)廢水中總氮的去除。長沙總氮菌銷售廠家</p><p style="text-indent:25px">因而，脫氮系統(tǒng)也必須采用低負荷或**負荷，并采用高污泥齡。南京怎么解決高濃度總氮廢水</p><p style="text-indent:25px">缺氧/好氧工藝(簡稱A2/O法)?A2-O法處理工藝是在好氧條件下，污水中NH3和銨鹽在硝化菌的作用下被氧化成NO2-—N和NO3-—N,然后在缺氧條件下，通過反硝化反應(yīng)將NO2-—N和NO3-—N還原成N2,達到脫氮的目的。A2/O是目前普遍采用的工藝，它是在法A/O法的基礎(chǔ)上增加一個厭氧段和一個缺氧段，傳統(tǒng)A2/O工藝流程。?5.厭氧—缺氧—好氧工藝(簡稱A1-A2/O工藝)?A1—A2/O工藝和A2/O工藝同屬于硝化—反硝化為基本流程的生物脫氨工藝，所不同的是A1—A2/O工藝是在A1/O工藝基礎(chǔ)上增加了一級預處理段—厭氧段(A1),目的在于通過水解(酸化)的預處理，改變廢水中難降解物質(zhì)的分子結(jié)構(gòu)，提高其可生化性，強化脫氮效果。?近幾十年來，盡管生物脫氮技術(shù)有了很大的發(fā)展，但是，硝化和反硝化兩個過程仍然需要在兩個隔離的反應(yīng)器中進行，或者在時間或空間上造成交替缺氧和好氧環(huán)境的同一個反應(yīng)器中進行。南京怎么解決高濃度總氮廢水</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2879521.html</p></div></div></div></div></div><div id="2lby87x" class="page-right twoColRt"><div id="s8q2qbc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nnn8gm3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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