西寧氨氮菌誠信互利普羅生物技術(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="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(jī)氯胺類等有機(jī)化合物，以及"><meta name="keywords" content="西寧氨氮菌,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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href="http://www.cdcfah.com/cp/second-jzjc_snhbjcyqfw/">室內(nèi)環(huán)保檢測儀器</a>?<a href="http://www.cdcfah.com/cp/third-snhbjcyqfw_aqjcyws/">氨氣檢測儀</a>?西寧氨氮菌誠信互利普羅生物技術(shù)供應(yīng)</p><div id="affwyah" class="leftbox clearfix"><h1>西寧氨氮菌誠信互利普羅生物技術(shù)供應(yīng)</h1><div id="b2jrjls" class="proBig"><div id="scpr3nc" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562442910157/1002772.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="s3iaczg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562442910157/1002772.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="joq2ldv" 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>西寧氨氮菌,氨氮</p><p><span>***更新：</span>2021-01-20 07:09:04</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="qaikhjl" 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</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="xhzwtax" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nce2l7n" class="box"><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(jī)氯胺類等有機(jī)化合物，以及鐵、錳、鎂、硫等無機(jī)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），西寧氨氮菌，西寧氨氮菌，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，西寧氨氮菌，本法可適用于地表水、地下水、工業(yè)廢水和生活污水。氨氮內(nèi)回流導(dǎo)致的氨氮超標(biāo)也可以歸到有機(jī)物沖擊中。西寧氨氮菌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西寧氨氮菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562442910157/1002772.png"></div><p style="text-indent:25px">配制試劑用水應(yīng)為無氨水。納氏試劑：可選擇下列一種方法制備。（1）稱取20g碘化鉀溶于約25ml水中，邊攪拌邊分次少量加入二**（HgCI2）結(jié)晶粉末（約10g），至出現(xiàn)朱紅色沉淀不易溶解時，改為滴加飽和二**溶液，并充分?jǐn)嚢?，?dāng)出現(xiàn)微量朱紅色沉淀不再溶解時，停止滴加二**溶液。另稱取60g氫氧化鉀溶于水，并稀釋至250ml，冷卻至室溫后，將上述溶液在邊攪拌下，徐徐注入氫氧化鉀溶液中，用水稀釋至400ml，混勻。靜置過夜，將上清液移入聚乙烯瓶中，密塞保存。（2）稱取16g氫氧化鈉，溶于50ml充分冷卻至室溫。另稱取7g碘化鉀和10g碘化汞（HgI2）溶于水，然后將此溶液在攪拌下徐徐注入氫氧化鈉溶液中，用水稀釋至100ml，貯于聚乙烯瓶中，密塞保存。西寧氨氮菌氨氮是水體中的主要耗氧污染物，對魚類及某些水生生物有毒害。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西寧氨氮菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562414062500/8090165.png"></div><p style="text-indent:25px">離子交換法: 沸石是一種對氨離子有很強選擇性的硅鋁酸鹽，一般作為離子交換樹脂用于去除氨氮的為斜發(fā)沸石，此法具有投資省、工藝簡單、操作較為方便的優(yōu)點，但對于高濃度的氨氮廢水，會使樹脂再生頻繁而造成操作困難，且再生液仍為高濃度氨氮廢水，需再處理。常用的離子交換系統(tǒng)有以下類型：固定;床在此系統(tǒng)中，溶液的去離子過程為二階段間歇過程。溶液通過陽樹脂床時陽離子與氫離子交換生成酸溶液，然后此溶液再通過陰樹脂床，以去除陰離子。交換能力將耗盡時，樹脂在原位再生，經(jīng)常采用向流下再生法，此法操作可靠方便，但其化學(xué)效率相對較低，容積較大，聯(lián)系到樹脂用量大，有時為了適應(yīng)連續(xù)流的要求，還需要有儲備裝置，因而投資費用較高。</p><p style="text-indent:25px">高氨氮廢水處理技術(shù)：該技術(shù)為吸納了“短程硝化-反硝化”與“同時硝化反硝化”脫氮技術(shù)的改進(jìn)A/O法，在進(jìn)水氨氮 150～250 mg/L、COD 350～1000 mg/L、C/N 2～4:1時，經(jīng)處理后出水COD低于20 mg/L、氨氮低于1.0 mg/L、總氮低于30 mg/L。為進(jìn)一步去除NOX-N、延長后續(xù)雙膜（超濾+反滲透膜）的使用壽命，出水繼續(xù)進(jìn)行脫氮處理和微污染水處理，達(dá)到COD低于10 mg/L、氨氮低于0.2 mg/L、濁度低于5 NTU后，經(jīng)雙膜處理后回用。該技術(shù)采用常溫堿化吹脫脫氨技術(shù)，工藝流程為“廢水預(yù)堿化+氨吹脫+氨氣吸收”。利用酸性吸收液對吹脫尾氣進(jìn)行氨吸收，設(shè)置封閉式吹脫氣體循環(huán)裝置，將吸收過氨氮的吹脫尾氣封閉循環(huán)到吹脫塔，以有效減少吹脫廢氣外排量，處理后氨氮低于15mg/L。氨氮氧化是指在厭氧條件下氨氮以亞硝酸鹽為電子受體直接被氧化成氮氣的過程。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西寧氨氮菌,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562560849610/7933327.png"></div><p style="text-indent:25px">滴定法概述：滴定法*適用于進(jìn)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(lán)為指示劑，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。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(lán)溶于50ml 95%乙醇。以兩份甲基紅溶液與一份亞甲藍(lán)溶液混合后供用。混合液一個月配制一次。注：為使滴定終點明顯，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。吹脫、汽提法主要用于脫除水中溶解氣體和某些揮發(fā)性物質(zhì)。南京硝化菌價格</p><p style="text-indent:25px">沸石脫氨法利用沸石中的陽離子與廢水中的NH4+進(jìn)行交換以達(dá)到脫氮的目的。西寧氨氮菌</p><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(dá)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(jì)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。西寧氨氮菌</p></p><br /><p>文章來源地址: 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