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href="http://m.cdcfah.com/cp/second-jzjc_snhbjcyqfw/">室內環(huán)保檢測儀器</a>?<a href="http://m.cdcfah.com/cp/third-snhbjcyqfw_aqjcyws/">氨氣檢測儀</a>?拉薩硝化菌誠信服務普羅生物技術供應</p><div id="kjlnug8" class="leftbox clearfix"><h1>拉薩硝化菌誠信服務普羅生物技術供應</h1><div id="36ryahj" class="proBig"><div id="7pnd2zl" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562400625000/5430084.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zj2y2eq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562400625000/5430084.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gfho23g" 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>產品關鍵詞：</span>拉薩硝化菌,氨氮</p><p><span>***更新：</span>2021-01-27 10:11:33</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="oi3yvht" 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（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="edphtvh" class="page-proshow02"><p class="title">詳細說明</p><div id="zneg7vw" class="box"><p><p style="text-indent:25px">氨氮沖擊導致的氨氮超標：這種情況一般是工業(yè)污水或者有工業(yè)污水進入生活污水管網的系統(tǒng)才能遇到，筆者之前遇到的情況是上游汽提塔控制溫度降低，導致來水氨氮突然升高，脫氮系統(tǒng)崩潰，出水氨氮超標，污水處理現(xiàn)場氨味特別濃（曝氣會有部分游離氨逸出）。分析：氨氮沖擊目前還沒有明確的解釋，拉薩硝化菌，筆者分析氨氮沖擊是因為水中游離氨（FA）過高導致的，雖然FA（游離氨）對AOB（氨氧化細菌／亞硝酸細菌）影響比較弱，但是當FA（游離氨）濃度在10~150mg/L時就開始對AOB（氨氧化細菌／亞硝酸細菌）產生壓抑作用，拉薩硝化菌，而游離氨（FA）對NOB（亞硝酸鹽氧化細菌／硝酸菌）影響更敏感，游離氨（FA）在0，拉薩硝化菌.1~60mg/L時對NOB（亞硝酸鹽氧化細菌／硝酸菌）就起到的壓抑作用，眾所周知，硝化反應是亞硝酸菌和硝酸菌共同完成的，對亞硝酸菌的壓抑直接就可以導致硝化系統(tǒng)的崩潰。氨氮沖擊目前還沒有明確的解釋，筆者分析氨氮沖擊是因為水中游離氨（FA）過高導致的。拉薩硝化菌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="拉薩硝化菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562400625000/5430084.png"></div><p style="text-indent:25px">氨氮超標的處理方法：改善水力停留時間：生物硝化曝氣池的水力停留時間也較活性污泥工藝長，因為硝化速率較有機污染物的去除率低得多，因而需要更長的反應時間。至少應在8h以上。氨氮超標的處理方法四改變BOD5/TKN比。 TKN系指水中有機氮與氨氮之和，入流污水中BOD5/TKN是影響硝化效果的一個重要因素。很多城市污水處理廠的運行實踐發(fā)現(xiàn)，BOD5/TKN值好佳范圍為2～3左右。BOD5/TKN越大，活性污泥中硝化細菌所占的比例越小，硝化速率就越小，在同樣運行條件下硝化效率就越低;反之，BOD5/TKN越小，硝化效率越高。福州氨氮菌哪家好兩段活性污泥法能有效的去除有機物和氨氮。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="拉薩硝化菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562179130860/4934085.png"></div><p style="text-indent:25px">傳統(tǒng)生物脫氮工藝存在不少問題: (1)工藝流程較長，占地面積大，基建投資高; (2) 由于硝化菌群增殖速度慢且難以維持較高的生物濃度，特別是在低溫冬季，造成系統(tǒng)的HRT 較長，需要較大的曝氣池，增加了投資和運行費用; (3) 系統(tǒng)為維持較高的生物濃度及獲得良好的脫氮效果，必須同時進行污泥和硝化液回流，增加了動力消耗和運行費用; (4) 系統(tǒng)抗沖擊能力較弱，高濃度NH3- N 和NO2-廢水會壓抑硝化菌生長; (5) 硝化過程中產生的酸度需要投加堿中和，不僅增加了處理費用，而且還有可能造成二次污染等等。</p><p style="text-indent:25px">氨氮超標的主要原因: PH過低導致的氨氮超標：超標原因：目前遇到的PH過低導致的氨氮超標有三種情況： 1，內回流太大或者內回流處曝氣開太大，導致攜帶大量的氧進入A池，破壞缺氧環(huán)境，反硝化細菌有氧代謝，部分有機物被有氧代謝掉，嚴重影響了反硝化的完整性，因為反硝化可以補償硝化反應代謝掉堿度的一半，所以因為缺氧環(huán)境的破壞導致堿度產生減少，PH降低，低于硝化細菌適宜的PH之后硝化反應受壓抑，氨氮升高。這種情況可能有些同行會遇到，但是從來沒從這方面找原因。原因分析：PH降低導致的氨氮超標，實際中發(fā)生的概率比較低，因為PH的連續(xù)下降是一個過程，一般運營人員在沒找到問題的時候就開始加堿去調節(jié)PH了,然后悶爆或者投加同類型的污泥。氨氮主要有短程硝化反硝化、好氧反硝化和厭氧氨氧化等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="拉薩硝化菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562560849610/7933327.png"></div><p style="text-indent:25px">A/O系統(tǒng): A/O脫氮除磷系統(tǒng)，即缺氧、好氧脫氮除磷系統(tǒng)。它是70年代主要由美國、南非等國開發(fā)的具有去除廢水中氮污染物的工藝，同時對脫磷亦有一定的效果。其工藝流程是讓廢水依次經歷缺氧、好氧兩個階段，故人們通稱為缺氧、好氧脫氮除磷系統(tǒng)，簡稱A/O系統(tǒng)。A/O系統(tǒng)流程簡單、運行管理方便，且很容易利用原廠改建，從而提高了出水水質。近年來已得到了越來越較廣的應用。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法的基礎上增加一個厭氧段和一個缺氧段。大多數(shù)廢水經過處理后，氨氮都不會太高，大部分都在20-80mg/L左右。廈門硝化菌種廠家推薦</p><p style="text-indent:25px">氨氮氧化是以硝酸鹽為電子受體或以氨作為直接電子供體。拉薩硝化菌</p><p style="text-indent:25px">生物脫氮法: 傳統(tǒng)和新開發(fā)的脫氮工藝有A/O，兩段活性污泥法、強氧化好氧生物處理、短程硝化反硝化、超聲吹脫處理氨氮法方法等。 1.A/O工藝將前段缺氧段和后段好氧段串聯(lián)在一起，A段DO不大于0.2mg/L，O段DO=2～4mg/L。在缺氧段異養(yǎng)菌將污水中的淀粉、纖維、碳水化合物等懸浮污染物和可溶性有機物水解為有機酸，使大分子有機物分解為小分子有機物，不溶性的有機物轉化成可溶性有機物，當這些經缺氧水解的產物進入好氧池進行好氧處理時，提高污水的可生化性，提高氧的效率；在缺氧段異養(yǎng)菌將蛋白質、脂肪等污染物進行氨化（有機鏈上的N或氨基酸中的氨基）游離出氨（NH3、NH4+），在充足供氧條件下，自養(yǎng)菌的硝化作用將NH3-N（NH4+）氧化為NO3-，通過回流控制返回至A池，在缺氧條件下，異氧菌的反硝化作用將NO3-還原為分子態(tài)氮（N2）完成C、N、O在生態(tài)中的循環(huán)，實現(xiàn)污水無害化處理。拉薩硝化菌</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3035677.html</p></div></div></div></div></div><div id="2d3cj7j" class="page-right twoColRt"><div id="vkmjae3" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gahy3a8" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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