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class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637360428637578125/7411655.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3d2tv7c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637360428637578125/7411655.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mdac7s3" 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>廣州反硝化菌,總氮</p><p><span>***更新：</span>2021-02-05 08:09:32</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="srjgypr" 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(jī): </span>021-68917101</p><p><span>地址: </span>上海市浦東新區(qū)金港路211號(hào)</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="ueb3b8j" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="gfhoqxz" class="box"><p><p style="text-indent:25px">總氮的定義：總氮的定義是水中各種形態(tài)無(wú)機(jī)和有機(jī)氮的總量。包括NO3-、NO2-和NH4+等無(wú)機(jī)氮和蛋白質(zhì)、氨基酸和有機(jī)胺等有機(jī)氮，以每升水含氮毫克數(shù)計(jì)算。常被用來(lái)表示水體受營(yíng)養(yǎng)物質(zhì)污染的程度。主要還是來(lái)源于微生物分解和工業(yè)排放，廣州反硝化菌，廣州反硝化菌，空氣中的氮?dú)獠蝗苡谒?總氮的種類：有機(jī)氮、氨氮、硝態(tài)氮、亞硝態(tài)氮四種形式存在。來(lái)源：1、有機(jī)氮：來(lái)源于蛋白質(zhì)、氨基酸等含氮有機(jī)物，這個(gè)種類繁多，廣州反硝化菌，無(wú)法一一敘述。2、氨氮：原水本來(lái)就有，而是通過(guò)有機(jī)氮分解而來(lái)的。3、硝態(tài)氮：生產(chǎn)工藝自身產(chǎn)生的，比如說(shuō)顏料中間體，染料中間體生產(chǎn)會(huì)產(chǎn)生大量的硝態(tài)氮。水樣采集在聚乙烯瓶中，用硫酸酸化至pH<2，在24h 內(nèi)進(jìn)行測(cè)定。廣州反硝化菌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州反硝化菌,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360428637578125/7411655.png"></div><p style="text-indent:25px">氨氮與總氮去除：1.氨氮的去除：利用氨氮在水中不同形態(tài)的存在關(guān)系，可通過(guò)調(diào)節(jié)溶液pH加以爆氣的方式使氨氣從水中逸出，達(dá)到去除氨氮的目的；也可以采用折點(diǎn)加氯法對(duì)氨氮進(jìn)行氧化，使之轉(zhuǎn)化為硝氮實(shí)現(xiàn)氨態(tài)的去除；還包括離子交換及生物氨化等方式。在污水處理中，氨氮的去除方式較多，且較為成熟，不同現(xiàn)場(chǎng)可根據(jù)自身情況選擇不同工藝取得較好的效果。2.總氮的去除：總氮的去除不能一概而論，當(dāng)有機(jī)氮、氨氮、硝氮分布失衡時(shí)，單一的生物法并不能取得很好的效果，此時(shí)需對(duì)三者分別進(jìn)行強(qiáng)化處理。廣州反硝化菌硝態(tài)氮或亞硝態(tài)氮超標(biāo)，這種情況說(shuō)明反硝化存在問題。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州反硝化菌,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360428508505860/4589582.png"></div><p style="text-indent:25px">水樣的采集與保存：水樣采集在聚乙烯瓶中，用硫酸酸化至pH<2，在24h 內(nèi)進(jìn)行測(cè)定。水樣的預(yù)處理：取適量水樣（總氮量5～150μg）置于50ml 比色管中，各加入10ml 堿性過(guò)硫酸鉀溶液，加水稀釋至標(biāo)線，密塞，搖勻。用紗布及紗繩裹緊塞子，以防濺漏。將比色管放入高壓蒸汽消毒器中，蓋好蓋子，加熱至蒸汽壓力達(dá)到1.1～1.3kg/cm2，記錄時(shí)間，50min 后緩慢放氣，待壓力指針回零，趁熱取出比色管充分搖勻，冷卻至室溫待測(cè)。同時(shí)取40ml 水制備空白樣。干擾的消除：消解后的樣品，含大量高價(jià)鐵離子等較多氧化性物質(zhì)時(shí)，增加三氯化鈦用量至溶液紫紅色不褪進(jìn)行測(cè)定，不影響測(cè)定結(jié)果。</p><p style="text-indent:25px">堿性過(guò)硫酸鉀紫外分光光度法試劑：本標(biāo)準(zhǔn)所用試劑，除特別注明，均為符合國(guó)家標(biāo)準(zhǔn)的分析純化學(xué)試劑；實(shí)驗(yàn)用水為無(wú)氨水或新制備的去離子水。1 無(wú)氨水的制備：將一般去離子水用硫酸酸化至pH<2 后進(jìn)行蒸餾，棄去較初100ml 餾出液，收集后面足夠的餾出液，密封保存在聚乙烯容器中。2 堿性過(guò)硫酸鉀溶液：稱取40g 過(guò)硫酸鉀（K2S2O8）及15g 氫氧化鈉（NaOH），溶解于水中，加水稀釋至1000ml，存放于聚乙烯瓶中，可使用一周。3 鹽酸：C(HCl)=5mol/L，優(yōu)級(jí)純。4三氯化鈦：15% 原液，化學(xué)純。5 無(wú)水高氯酸鎂（Mg(ClO4)2）：8～10 目顆粒。6 硝酸鹽氮標(biāo)準(zhǔn)貯備液（1.00mg/ml）：稱取預(yù)先在105～110℃干燥2h 的優(yōu)級(jí)純硝酸鈉（NaNO3）3.034g，溶解于水，移入500ml 容量瓶中，加水稀釋至標(biāo)線，搖勻。7 硝酸鹽氮標(biāo)準(zhǔn)使用液(10.00μg/ml)：吸取硝酸鹽氮標(biāo)準(zhǔn)貯備液，用水逐級(jí)稀釋而成。去除水中的總氮，首先要明確哪一組分是導(dǎo)致總氮超標(biāo)的原因，再進(jìn)行針對(duì)性解決。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州反硝化菌,總氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637360428926591797/4013324.png"></div><p style="text-indent:25px">倍活®反硝化菌種MicroPlex-DEN是針對(duì)污水處理反硝化系統(tǒng)研發(fā)的生物制劑，是由從大自然中篩選出的反硝化菌種、酶制劑和營(yíng)養(yǎng)物質(zhì)專業(yè)配比組成，主要用于提高污水處理系統(tǒng)的反硝化能力，通常用于缺氧池等缺氧區(qū)域。通常，污水廠的硝化反應(yīng)把氨氮轉(zhuǎn)化為亞硝酸鹽和硝酸鹽，硝酸鹽在反硝化菌種的作用下，生產(chǎn)氮?dú)馀欧胖量諝庵小icroPlex-DEN主要成分是從大自然中篩選出具有反硝化菌種，能夠提高系統(tǒng)的反硝化能力，增加亞硝酸鹽/硝酸鹽的去除能力?？偟∟O3-、NO2-和NH4+等無(wú)機(jī)氮和蛋白質(zhì)、氨基酸和有機(jī)胺等有機(jī)氮。廣州反硝化菌</p><p style="text-indent:25px">如果有機(jī)氮穩(wěn)定導(dǎo)致超標(biāo)的話，需要預(yù)處理強(qiáng)化破壞有機(jī)結(jié)構(gòu)，或者深度處理去除有機(jī)氮。廣州反硝化菌</p><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(jìn)行反硝化，其生物脫氮過(guò)程如：NH+4——HNO2?——N2?短程生物脫氫工藝的優(yōu)點(diǎn)：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(dá)50%;減少投堿量，縮短反應(yīng)時(shí)間。但是短程硝化反硝化的缺點(diǎn)是不能夠長(zhǎng)久穩(wěn)定地維持HNO2積累。同時(shí)硝化反硝化工藝：?所謂同時(shí)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(shí)發(fā)生的現(xiàn)象。同時(shí)硝化反硝化過(guò)程由于是在一個(gè)反應(yīng)器中進(jìn)行，它具有如下優(yōu)點(diǎn)：完全脫氮，強(qiáng)化磷的去除;降低曝氣量，節(jié)省能耗并增加設(shè)備處理負(fù)荷，減少堿度的能耗;簡(jiǎn)化系統(tǒng)的設(shè)計(jì)和操作，同時(shí)硝化反硝化工藝的不足之處就是影響因素較多，過(guò)程難以控制。目前荷蘭、丹麥、意大利等國(guó)已有污水廠在利用同時(shí)硝化反硝化脫氫工藝運(yùn)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(dá)70%～95%。廣州反硝化菌</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3173300.html</p></div></div></div></div></div><div id="lacjlxu" class="page-right twoColRt"><div id="swolnur" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gurtlsp" class="recomPic likePro"><a 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