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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jzjc/">建筑、建材</a>?<a href="http://www.cdcfah.com/cp/second-jzjc_snhbjcyqfw/">室內(nèi)環(huán)保檢測(cè)儀器</a>?<a href="http://www.cdcfah.com/cp/third-snhbjcyqfw_aqjcyws/">氨氣檢測(cè)儀</a>?銀川硝化細(xì)菌哪個(gè)牌子好 **** 普羅生物技術(shù)供應(yīng)</p><div id="irtvcjl" class="leftbox clearfix"><h1>銀川硝化細(xì)菌哪個(gè)牌子好 **** 普羅生物技術(shù)供應(yīng)</h1><div id="h8pbnzg" class="proBig"><div id="3cj78o8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562513701172/710473.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8wdkrd7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562513701172/710473.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dugd2eq" 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>銀川硝化細(xì)菌哪個(gè)牌子好,氨氮</p><p><span>***更新：</span>2021-02-03 00:19:30</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="eifmo27" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="qzwd7z7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="hl274jl" class="box"><p><p style="text-indent:25px">氨氮超標(biāo)的處理方法：改變?nèi)芙庋酰?　　硝化細(xì)菌為專(zhuān)性好氧菌，無(wú)氧時(shí)即停止生命活動(dòng)，需保持生物池好氧區(qū)的溶解氧在2mg/L以上，特殊情況下溶解氧含量還需提高。硝化細(xì)菌的攝氧速率較分解有機(jī)物的細(xì)菌低得多，如果不保持充足的氧量，硝化細(xì)菌將“爭(zhēng)奪”不到所需要的氧。因此，需保持生物池好氧區(qū)的溶解氧在2mg/L以上，特殊情況下溶解氧含量還需提高。氨氮超標(biāo)的處理方法改變溫度：冬季時(shí)污水處理廠(chǎng)特別是北方地區(qū)的污水處理廠(chǎng)出水氨氮超標(biāo)的現(xiàn)象較為明顯因?yàn)橄趸?xì)菌對(duì)溫度的變化也很敏感，當(dāng)污水溫度低于15℃時(shí)，硝化速率會(huì)明顯下降，銀川硝化細(xì)菌哪個(gè)牌子好，當(dāng)污水溫度低于5℃時(shí)，其生理活動(dòng)會(huì)完全停止。氨氮在此條件下，均被定量的測(cè)定，銀川硝化細(xì)菌哪個(gè)牌子好，銀川硝化細(xì)菌哪個(gè)牌子好。鈣、鎂等陽(yáng)離子的干擾，可加酒石酸鉀鈉掩蔽。銀川硝化細(xì)菌哪個(gè)牌子好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銀川硝化細(xì)菌哪個(gè)牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562513701172/710473.png"></div><p style="text-indent:25px">常用的廢水中氨氮的去除物理化學(xué)方法有以下幾種： 1.吹脫法：在堿性條件下，利用氨氮的氣相濃度和液相濃度之間的氣液平衡關(guān)系進(jìn)行分離的一種方法。一般認(rèn)為吹脫效率與溫度、PH、氣液比有關(guān)。 2.沸石脫氮法：利用沸石中的陽(yáng)離子與廢水中的NH4＋進(jìn)行交換以達(dá)到脫氮目的。沸石一般被用于處理低濃度含氨廢水或含微量重金屬的廢水。 3.膜分離技術(shù)：利用膜的選擇透過(guò)性進(jìn)行氨氮脫除的一種方法，這種方法操作方便，氨氮回收率高，無(wú)二次污染。 4.MAP沉淀法：是向含有高濃度氨氮的廢水中投加磷鹽和鎂鹽，除去廢水中的氨氮。 5.化學(xué)氧化法：是利用強(qiáng)氧化劑將氨氮直接氧化成氮?dú)膺M(jìn)行脫除的一種方法。折點(diǎn)加氯是利用在水中的氨與氯反應(yīng)生成氮?dú)饷摪?，這種方法還可以起到殺菌作用。銀川硝化細(xì)菌哪個(gè)牌子好沸石脫氨法利用沸石中的陽(yáng)離子與廢水中的NH4+進(jìn)行交換以達(dá)到脫氮的目的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銀川硝化細(xì)菌哪個(gè)牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562442910157/1002772.png"></div><p style="text-indent:25px">厭氧氨氧化工藝:　厭氧氨氧化是以硝酸鹽為電子受體或以氨作為直接電子供體，進(jìn)行硝酸鹽還原反應(yīng)或?qū)喯跛岬D(zhuǎn)化為氮?dú)獾姆聪趸磻?yīng)。與傳統(tǒng)的硝化反硝化工藝或同時(shí)硝化反硝化工藝相比，氨的厭氧氧化具有不少突出的優(yōu)點(diǎn)。主要表現(xiàn)在: (1)無(wú)需外加有機(jī)物作電子供體，既可節(jié)省費(fèi)用，又可防止二次污染; (2)硝化反應(yīng)每氧化1molNH4+耗氧2mol ，而在厭氧氨氧化反應(yīng)中，每氧化1molNH4+只需要0.75mol 氧，耗氧下降62.5 %(不考慮細(xì)胞合成時(shí)) ，所以，可使耗氧能耗大為降; (3)傳統(tǒng)的硝化反應(yīng)氧化1molNH4+可產(chǎn)生2molH+ ，反硝化還原1molNO3-或NO2-將產(chǎn)生1molOH- ，而氨厭氧氧化的生物產(chǎn)酸量大為下降，產(chǎn)堿量降至為零，可以節(jié)省可觀(guān)的中和試劑。故厭氧氨氧化及其工藝技術(shù)很有研究?jī)r(jià)值和開(kāi)發(fā)前景。</p><p style="text-indent:25px">酒石酸鉀鈉溶液稱(chēng)取50g酒石酸鉀鈉（KnaC4H4O6·4H2O）溶于100ml水中，加熱煮沸以除去氨，放冷，定容至100ml。銨標(biāo)準(zhǔn)貯備溶液稱(chēng)取3.819g經(jīng)100℃干燥過(guò)的氯化銨（NH4Cl）溶于水中，稀釋至標(biāo)線(xiàn)。此溶液每毫升含1.00mg氨氮。銨標(biāo)準(zhǔn)使用溶液移取5.00ml銨標(biāo)準(zhǔn)貯備液于500ml容量瓶中，用水稀釋至標(biāo)線(xiàn)。此溶液每毫升含0.010mg氨氮。步驟： 1.校準(zhǔn)曲線(xiàn)的繪制吸取0、0.50、1.00、3.00、5.00、7.00、和10.0ml銨標(biāo)準(zhǔn)使用液于50ml比色管中，加水至標(biāo)線(xiàn)。加1.0ml酒石酸鉀鈉溶液，混勻。加1.5ml納氏試劑，混勻。放置10min后，在波長(zhǎng)4250nm處，用光程20mm比色皿，以水作參比，測(cè)量吸光度。由測(cè)得得吸光度，減去零濃度空白管的吸光度后，得到校正吸光度，繪制以氨氮含量（mg）對(duì)校正吸光度得校準(zhǔn)曲線(xiàn)。氨氮為吸附在PAC 上的微生物提供良好的生活環(huán)境從而提高有機(jī)物的降解速率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銀川硝化細(xì)菌哪個(gè)牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562433906250/8123035.png"></div><p style="text-indent:25px">傳統(tǒng)生物法：目前，國(guó)內(nèi)外對(duì)氨氮污水實(shí)際處理中應(yīng)用較成熟的生物處理方法是傳統(tǒng)的前置反硝化生物脫氮，如A/O、A2/O工藝等，都能在一定程度上去除污水中的氨氮。傳統(tǒng)生物脫氮途徑一般包括硝化和反硝化兩個(gè)階段，硝化和反硝化反應(yīng)分別由硝化菌和反硝化菌作用完成，由于對(duì)環(huán)境條件的要求不同，這兩個(gè)過(guò)程不能同時(shí)發(fā)生，而只能序列式進(jìn)行，即硝化反應(yīng)發(fā)生在好氧條件下，反硝化反應(yīng)發(fā)生在缺氧或厭氧條件下。由此而發(fā)展起來(lái)的生物脫氮工藝大多將缺氧區(qū)與好氧區(qū)分開(kāi)，形成分級(jí)硝化反硝化工藝，以便硝化與反硝化能夠**地進(jìn)行。1932 年，Wuhrmann利用內(nèi)源反硝化建立了后置反硝化工藝，Ludzack和Ettinger于1962年提出了前置反硝化工藝，1973年Barnard 結(jié)合前面兩種工藝又提出了A/O工藝，以及后又出現(xiàn)了各種改進(jìn)工藝如Bardenpho、Phoredox (A2/ O) UCT、JBH、AAA 工藝等，這些都是典型的傳統(tǒng)硝化反硝化工藝。水樣帶色或渾濁以及含其它一些干擾物質(zhì)，影響氨氮的測(cè)定。銀川硝化細(xì)菌哪個(gè)牌子好</p><p style="text-indent:25px">要想確保水質(zhì)監(jiān)測(cè)能夠取得積極的效果，人們就需要準(zhǔn)確測(cè)量氨氮含量。銀川硝化細(xì)菌哪個(gè)牌子好</p><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(shí)能與酸反應(yīng)的物質(zhì)，如揮發(fā)性胺類(lèi)等，則將使測(cè)定結(jié)果偏高。試劑：（1）混合指示液：稱(chēng)取200mg甲基紅溶于100ml 95%乙醇；另稱(chēng)取100mg亞甲藍(lán)溶于50ml 95%乙醇。以?xún)煞菁谆t溶液與一份亞甲藍(lán)溶液混合后供用。混合液一個(gè)月配制一次。注：為使滴定終點(diǎn)明顯，必要時(shí)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。銀川硝化細(xì)菌哪個(gè)牌子好</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3129157.html</p></div></div></div></div></div><div id="87vspwn" class="page-right twoColRt"><div id="ixz2n3s" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3jacjls" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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