南京氨氮去除菌哪家好抱誠守真普羅生物技術(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="滴定法概述：滴定法*適用于進行蒸餾預(yù)處理的水樣。調(diào)節(jié)水樣至pH6.0~7.4范圍，加入氧化鎂使呈微堿性。加熱蒸餾，釋出的氨被吸收入硼酸溶液中，以甲基紅-亞甲藍為指示劑，南京氨氮去除菌哪家好，用酸標(biāo)準(zhǔn)溶液滴定餾出液中的銨。當(dāng)水樣中含有在此條件"><meta name="keywords" content="南京氨氮去除菌哪家好,氨氮"><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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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南京氨氮去除菌哪家好,氨氮</p><p><span>***更新：</span>2021-01-19 08:08:52</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ygkr8ry" 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(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="cvht97e" class="page-proshow02"><p class="title">詳細說明</p><div id="i3zfj8s" class="box"><p><p style="text-indent:25px">滴定法概述：滴定法*適用于進行蒸餾預(yù)處理的水樣。調(diào)節(jié)水樣至pH6.0~7.4范圍，加入氧化鎂使呈微堿性。加熱蒸餾，釋出的氨被吸收入硼酸溶液中，以甲基紅-亞甲藍為指示劑，南京氨氮去除菌哪家好，用酸標(biāo)準(zhǔn)溶液滴定餾出液中的銨。當(dāng)水樣中含有在此條件下，可被蒸餾出并在滴定時能與酸反應(yīng)的物質(zhì)，如揮發(fā)性胺類等，則將使測定結(jié)果偏高，南京氨氮去除菌哪家好。試劑：（1）混合指示液：稱取200mg甲基紅溶于100ml 95%乙醇；另稱取100mg亞甲藍溶于50ml 95%乙醇。以兩份甲基紅溶液與一份亞甲藍溶液混合后供用?；旌弦阂粋€月配制一次。注：為使滴定終點明顯，南京氨氮去除菌哪家好，必要時添加少量甲基紅溶液于混合指示液中，以調(diào)節(jié)二者的比例至合適為止。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(dǎo)致的。南京氨氮去除菌哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氨氮去除菌哪家好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562179130860/4934085.png"></div><p style="text-indent:25px">電極法概述: 方法原理: 氨氣敏電極為一復(fù)合電極，以pH玻璃電極為指示電極，銀-氯化銀電極為參比電極。此電極對置于盛有0.1mol/L氯化銨內(nèi)充液的塑料管中，管端部緊貼指示電極敏感膜處裝有疏水半滲透薄膜，使內(nèi)電解液與外部試液隔開，半透膜與pH玻璃電極有一層很薄的液膜。當(dāng)水樣中加入強堿溶液將pH提高到11以上，使銨鹽轉(zhuǎn)化為氨，生成的氨由于擴散作用而通過半透膜（水和其他離子則不能通過），使氯化銨電解質(zhì)液膜層內(nèi)NH4+?NH3+H+的反應(yīng)向左移動，引起氫離子濃度改變，由pH玻璃電極測得其變化。在恒定的離子強度下，測得的電動勢與水樣中氨氮濃度的對數(shù)呈一定的線性關(guān)系。由此，可從測得的電位確定樣品中氨氮的含量。南京氨氮去除菌哪家好氨氮對水生物的危害有急性和慢性之分。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氨氮去除菌哪家好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562433906250/8123035.png"></div><p style="text-indent:25px">氨氮測定及處理方法：在實施絮凝沉淀法的過程中，需加入 1 mL 10% 的 ZnSO4 以及 0.10 ～ 0.25 mL 25% 的 NaOH 溶液，若水樣通過加酸進行保存，還應(yīng)加入 NaOH 進行中和，在出現(xiàn)絮狀沉淀后取出清液來進行測定。而運用蒸餾法時，應(yīng)準(zhǔn)備 250 mL 的水樣，將其移入凱氏燒瓶中，添入幾滴溴百里酚藍指示液，通過 NaOH 溶液或 HCl 溶液，將其調(diào)節(jié)到 pH=7 左右，再加入 0.25 g 的 MgO 與數(shù)粒玻璃珠，然后立即和冷凝管和安球進行連接，并將導(dǎo)管下端插入吸收液的液面之下，通過加熱進行蒸餾，當(dāng)液體達到 200 mL 時，則終止蒸餾，定容到250 mL，將 500 mL 的 H3BO3 溶液作為吸收液。</p><p style="text-indent:25px">納氏試劑光度法概述： 1.方法原理碘化汞和碘化鉀的堿性溶液與氨反應(yīng)生成淡紅棕色膠態(tài)化合物，此顏色在較寬的波長范圍內(nèi)具強烈吸收。通常測量用波長在410—425nm范圍。 2.干擾及消除脂肪胺、芳香胺、醛類、**、醇類和有機氯胺類等有機化合物，以及鐵、錳、鎂、硫等無機離子，因產(chǎn)生異色或渾濁而引起干擾，水中顏色和渾濁亦影響比色。為此，須經(jīng)絮凝沉淀過濾或蒸餾預(yù)處理，易揮發(fā)的還原性干擾物質(zhì)，還可在酸性條件下加熱除去。對金屬離子的干擾，可加入適量的掩蔽劑加以消除。 3.方法適用范圍本法較低檢出濃度為0.025mol/L（光度法），測定上限為2mg/L。采用目視比色法，較低檢出濃度為0.02mg/L。水樣作適當(dāng)?shù)念A(yù)處理后，本法可適用于地表水、地下水、工業(yè)廢水和生活污水。要想確保水質(zhì)監(jiān)測能夠取得積極的效果，人們就需要準(zhǔn)確測量氨氮含量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氨氮去除菌哪家好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562194062500/5576129.png"></div><p style="text-indent:25px">化學(xué)沉淀法可以處理各種濃度氨氮廢水。其與生物法結(jié)合處理高濃度氨氮廢水，曝氣池不需達到硝化階段，曝氣池體積比硝化-反硝化法可以減小約一倍。NH4+-N在化學(xué)沉淀法中被沉淀去除，與硝化-反硝化法相比，能耗較大節(jié)省，反應(yīng)也不受溫度限制，不受有毒物質(zhì)的干擾，其產(chǎn)物MAP，還可用作肥料，可在一定程度上降低處理費用。因此，MAP沉淀法是一種技術(shù)可行、經(jīng)濟合理的方法，很有開發(fā)前景，但要較廣應(yīng)用于工業(yè)廢水處理，尚需解決以下兩個問題：（1）尋找價廉高效的沉淀劑；（2）開發(fā)MAP作為肥料的價值。氨氮一般是工業(yè)污水或者有工業(yè)污水進入生活污水管網(wǎng)的系統(tǒng)才能遇到。南京氨氮去除菌哪家好</p><p style="text-indent:25px">加適量的硫酸鋅于水樣中，并加氫氧化鈉使呈堿性，生成氫氧化鋅沉淀，再經(jīng)過濾去除顏色和渾濁等。南京氨氮去除菌哪家好</p><p style="text-indent:25px">常見的高氨氮廢水處理工藝：高濃度氨氮廢水處理方法通常有物化法、生物脫氮法、生化聯(lián)合法等，其中物化法主要分為吹脫法、沸石脫氨法、膜分離技術(shù)、MAP沉淀法、化學(xué)氧化法；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；物化方法在處理高濃度氨氮廢水時不會因為氨氮濃度過高而受到限制，但是不能將氨氮濃度降到足夠低（如100mg/L以下）。而生物脫氮會因為高濃度游離氨或者亞硝酸鹽氮而受到壓抑。實際應(yīng)用中采用生化聯(lián)合的方法，在生物處理前先對含高濃度氨氮的廢水進行物化處理。南京氨氮去除菌哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2914922.html</p></div></div></div></div></div><div id="2lx3no8" class="page-right twoColRt"><div id="wmihvws" class="box01 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