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src="https://tyunfile.71360.com/UploadFile/shplsw/637379562423007813/849118.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bgiahd2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shplsw/637379562423007813/849118.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uogd2ov" 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>貴陽硝化菌種哪個牌子好,氨氮</p><p><span>***更新：</span>2020-11-01 04:16:03</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="ap2jq8p" 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="mgy8eb3" class="page-proshow02"><p class="title">詳細說明</p><div id="xwtqxul" class="box"><p><p style="text-indent:25px">氨氮：氨氮是指水中以游離氨（NH3）和銨離子（NH4+）形式存在的氮。動物性有機物的含氮量一般較植物性有機物為高。同時，人畜糞便中含氮有機物很不穩(wěn)定，容易分解成氨。因此，貴陽硝化菌種哪個牌子好，水中氨氮含量增高時指以氨或銨離子形式存在的化合氮。自然地表水體和地下水體中主要以硝酸鹽氮（NO3）為主，以游離氨（NH3）和銨離子（NH4+）形式存在的氮受污染水體的氨氮叫水合氨，也稱非離子氨，貴陽硝化菌種哪個牌子好。非離子氨是引起水生生物有害的主要因子，而銨離子相對基本無毒。國家標準Ⅲ類地面水，貴陽硝化菌種哪個牌子好，非離子氨氮的濃度≤1毫克/升。氨氮是水體中的營養(yǎng)素，可導(dǎo)致水富營養(yǎng)化現(xiàn)象產(chǎn)生，是水體中的主要耗氧污染物，對魚類及某些水生生物有有害。氨氮對水生物起危害作用的主要是游離氨。貴陽硝化菌種哪個牌子好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽硝化菌種哪個牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562423007813/849118.png"></div><p style="text-indent:25px">DO過低導(dǎo)致的氨氮超標：運營過的污水是高硬度的廢水，特別容易結(jié)垢，開始曝氣使用微孔爆氣器，運行一段時間曝氣頭就會堵塞，導(dǎo)致DO壓抑提不上來導(dǎo)致氨氮升高。分析：原因很簡單，曝氣的作用是充氧和攪拌，曝氣頭的堵塞造成兩種都受到影響，而硝化反應(yīng)是有氧代謝，需要保證曝氣池溶氧適宜的環(huán)境下才能正常進行，而DO過低則會導(dǎo)致硝化受阻，氨氮超標。解決辦法： 1、更換曝氣頭，如果硬度低操作問題導(dǎo)致的堵塞可以考慮這種方法 2、改造成大孔曝氣器（氧利用率過低，風(fēng)機余量大和不差錢的企業(yè)可以考慮）或者射流曝氣器（只能用監(jiān)測池出水來進行充當(dāng)動力流體，尤其是硬度高的污水，切記！）貴陽硝化菌種哪個牌子好在水質(zhì)監(jiān)測中，氨氮是反映水質(zhì)的一項重要指標。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽硝化菌種哪個牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562194062500/5576129.png"></div><p style="text-indent:25px">短程硝化反硝化生物硝化反硝化是應(yīng)用好較廣的脫氮方式，是去除水中氨氮的一種較為經(jīng)濟的方法，其原理就是模擬自然生態(tài)環(huán)境中氮的循環(huán)，利用硝化菌和反硝化菌的聯(lián)合作用，將水中氨氮轉(zhuǎn)化為氮氣以達到脫氮目的。由于氨氮氧化過程中需要大量的氧氣，曝氣費用成為這種脫氮方式的主要開支。短程硝化反硝化是將氨氮氧化控制在亞硝化階段，然后進行反硝化，省去了傳統(tǒng)生物脫氮中由亞硝酸鹽氧化成硝酸鹽，再還原成亞硝酸鹽兩個環(huán)節(jié)（即將氨氮氧化至亞硝酸鹽氮即進行反硝化）。該技術(shù)具有很大的優(yōu)勢：①節(jié)省25%氧供應(yīng)量，降低能耗；②減少40%的碳源，在C/N較低的情況下實現(xiàn)反硝化脫氮；③縮短反應(yīng)歷程，節(jié)省50%的反硝化池容積；④降低污泥產(chǎn)量，硝化過程可少產(chǎn)污泥33%~35%左右，反硝化階段少產(chǎn)污泥55%左右。實現(xiàn)短程硝化反硝化生物脫氮技術(shù)的關(guān)鍵就是將硝化控制在亞硝酸階段，阻止亞硝酸鹽的進一步氧化。</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，用酸標準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，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。當(dāng)氯氣通入量超過該點時，水中的游離氯就會增多。因此，該點稱為折點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽硝化菌種哪個牌子好,氨氮" src="https://tyunfile.71360.com/UploadFile/shplsw/637379562277949219/3962690.png"></div><p style="text-indent:25px">對人體健康的影響: 水中的氨氮可以在一定條件下轉(zhuǎn)化成亞硝酸鹽，如果長期飲用，水中的亞硝酸鹽將和蛋白質(zhì)結(jié)合形成亞硝胺，這是一種強致病物質(zhì)，對人體健康極為不利。對生態(tài)環(huán)境的影響: 氨氮對水生物起危害作用的主要是游離氨，其毒性比銨鹽大幾十倍，并隨堿性的增強而增大。氨氮毒性與池水的pH值及水溫有密切關(guān)系，一般情況，pH值及水溫愈高，毒性愈強，對魚的危害類似于亞硝酸鹽。氨氮對水生物的危害有急性和慢性之分。慢性氨氮中毒危害為：攝食降低，生長減慢，組織損傷，降低氧在組織間的輸送。魚類對水中氨氮比較敏感，當(dāng)氨氮含量高時會導(dǎo)致魚類死亡。急性氨氮中毒危害為：水生物表現(xiàn)亢奮、在水中喪失平衡、抽搐，嚴重者甚至死亡。氨氮生成黃棕色的混合物，且混合物色度和氨氮含量成正比。貴陽硝化菌種哪個牌子好</p><p style="text-indent:25px">氨氮是水體中的主要耗氧污染物。貴陽硝化菌種哪個牌子好</p><p style="text-indent:25px">氨氮超標的處理方法：改善污泥負荷與污泥齡污水中的生物硝化反應(yīng)屬低負荷工藝，負荷越低，硝化進行得越充分，NH3-N向NO3--N轉(zhuǎn)化的效率就越高。F/M一般在0.05～0.15kgBOD/kgMLVSS·d。負荷越低，硝化進行得越充分，NH3-N向NO3--N轉(zhuǎn)化的效率就越高。與低負荷相對應(yīng)，生物硝化系統(tǒng)的SRT一般較長，因為硝化細菌世代周期較長，若生物系統(tǒng)的污泥停留時間過短，即SRT過短，污泥濃度較低時，硝化細菌就培養(yǎng)不起來，也就得不到硝化效果。SRT控制在多少，取決于溫度等因素。對于以脫氮為主要目的生物系統(tǒng)，通常SRT可取11～23d。貴陽硝化菌種哪個牌子好</p><p style="text-indent:25px">普羅生物技術(shù)（上海）有限公司位于上海市浦東新區(qū)金港路211號。公司業(yè)務(wù)分為硝化菌反硝化菌COD菌，促生劑、生物菌酶、營養(yǎng)劑，生物磷、生物氮、復(fù)合碳源，植物精油除臭劑、厭氧菌等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司從事環(huán)保多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。普羅生物憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1795828.html</p></div></div></div></div></div><div id="2yprtfm" class="page-right twoColRt"><div id="87l8rt3" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dhjgdkr" class="recomPic 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