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id="content-b4d7e603-dc5c-4019-9525-5a06aa12ada3" data-guid="41b6ab3e-9000-4f4c-af3f-5e0b647f9c81" value="3" style="opacity: 1;"> <div id="xtc3873" class="row"> <div id="dp7gqc7" class="col-md-12 column ui-sortable" data-guid="8bbc0dea-34d9-e518-4d55-5fcb011b693a"><li data-even="15" class="ui-draggable-handle ui-sortable-handle" style="width: 100%; right: auto; bottom: auto; opacity: 1;"> <div id="yeix38j" class="module-context" data-type="0" data-name="自定義欄目" data-value="0e140772-3f4d-4273-be13-cb29c466b0db" data-guid="25b9f688-32cc-0150-be72-3565ea99aabb" id="box_e0635738-535d-4741-b24a-6eff3eb6d054" style="width: 100%; display: block;"> <div id="pvkzeis" class="module-view" style="width: 100%;"><div> <div id="gmwfuji" class="news_content_head"> <div id="7sh3mvo" class="news_content_title"> 生物接觸氧化法處理技術(shù)運轉和維護要點(diǎn) </div> <div id="dfeir8s" class="news_content_date"> 發(fā)布時(shí)間 2020-11-16 </div> </div> <div id="8vj8l3u" class="news_content_text"> <p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">一、運轉和管理</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">主要是從影響處理效果的幾個(gè)主要因素進(jìn)行管理</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">①有機負荷</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">有機負荷是反應生物接觸氧化法凈化效能的重要指標。由于各種廢水的濃度、組成不同，因此從廣義上說(shuō)，有機負荷應當包括具有抑制作用并足以影響處理效果的一切物質(zhì)。能被微生物分解的污染物質(zhì)數量用</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">表示，這一數值近似地等于各種物質(zhì)所能生成能量的總和，所以有機負荷是指生物接觸氧化處理中單位數量微生物所能處理的</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">數量（投加的、接受的）。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">有機負荷有三種不同的表示方法：?jiǎn)挝惶盍先莘e的污染物質(zhì)負荷量（填料容積負荷）；單位填料面積的污染物質(zhì)負荷量（填料表面積負荷）；接觸氧化池單位容積的污染物負荷量（氧化池容積負荷）。常用的是填料容積負荷。即</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">容積負荷</span></span><span style=";font-family:'Times New Roman';font-size:14px">=</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">單位時(shí)間內供給生物膜的有機物數量（</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">）</span></span><span style=";font-family:'Times New Roman';font-size:14px">i</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">填料總體積</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">②</span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">生物接觸氧化法作為一種生物處理方法來(lái)說(shuō)，環(huán)境條件對生物膜的影響是重要的，有時(shí)甚至是決定性的。其中</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值是重要的環(huán)境因素之一。適合于微生物生長(cháng)的</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值范圍如下：</span></span></p><table cellspacing="0"><tbody><tr class="firstRow"><td width="73" valign="top" style="padding: 0px 7px; border-width: 1px; border-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style="font-family:宋體;font-size:14px">值</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top-width: 1px; border-top-color: rgb(240, 240, 240); border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">適合于生長(cháng)繁殖的微生物和污泥性能</span></p></td></tr><tr><td width="73" valign="top" style="padding: 0px 7px; border-left-width: 1px; border-left-color: rgb(240, 240, 240); border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">2.0</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">大部分霉菌，污泥的沉淀性不良</span></p></td></tr><tr><td width="73" valign="top" style="padding: 0px 7px; border-left-width: 1px; border-left-color: rgb(240, 240, 240); border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="line-height:150%"><span style="font-family:'Times New Roman';font-size:14px">3</span><span style="font-family:宋體;font-size:14px">—</span><span style="font-family:'Times New Roman';font-size:14px">5</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">霉菌及細菌，污泥呈白褐色</span></p></td></tr><tr><td width="73" valign="top" style="padding: 0px 7px; border-left-width: 1px; border-left-color: rgb(240, 240, 240); border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style="font-family:'Times New Roman';font-size:14px">7</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">污泥呈黃褐色，沉淀性與透明度都很好</span></p></td></tr><tr><td width="73" valign="top" style="padding: 0px 7px; border-left-width: 1px; border-left-color: rgb(240, 240, 240); border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="line-height:150%"><span style="font-family:'Times New Roman';font-size:14px">8</span><span style="font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">10</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">污泥呈黃褐色，但透明度惡化</span></p></td></tr><tr><td width="73" valign="top" style="padding: 0px 7px; border-left-width: 1px; border-left-color: rgb(240, 240, 240); border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="line-height:150%"><span style="font-family:'Times New Roman';font-size:14px">9</span><span style="font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">11</span></p></td><td width="495" valign="top" style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: rgb(240, 240, 240); border-top: none; border-bottom-width: 1px; border-bottom-color: rgb(240, 240, 240);"><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">污泥呈粉紅色，微生物增殖減少</span></p></td></tr></tbody></table><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">雖然</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值的*廣范圍為</span></span><span style=";font-family:'Times New Roman';font-size:14px">4</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">10</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">，但由于異常的</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值能夠損害細胞表面的滲透功能和細胞內的酶反應，因此適宜的</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值范圍應為</span></span><span style=";font-family:'Times New Roman';font-size:14px">6</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">8</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">。生物接觸氧化法對</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值的適應性比較強。當污水的</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值為</span></span><span style=";font-family:'Times New Roman';font-size:14px">8</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">10</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">時(shí)，微生物任然有適應能力，對處理效果影響不大。</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值為</span></span><span style=";font-family:'Times New Roman';font-size:14px">10</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">10.5</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">時(shí)，則對處理效果有影響。當受到</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值沖擊時(shí)（如</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值＞</span></span><span style=";font-family:'Times New Roman';font-size:14px">11</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">），微生物是不能適應的，在這種情況下反應*敏感的是生物相。鐘蟲(chóng)呈呆滯狀態(tài)或消失，菌膠團解體，松散模糊，游離菌、豆形蟲(chóng)、草履蟲(chóng)增多。</span></span><span style=";font-family:'Times New Roman';font-size:14px">cod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">和</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">去除率下降。但是，當受到高</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值沖擊后，若能及時(shí)采取措施（如加酸中和）將污水</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值調整至</span></span><span style=";font-family:'Times New Roman';font-size:14px">10</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">以下，則生物相的恢復比活性污泥法快。一般只需</span></span><span style=";font-family:'Times New Roman';font-size:14px">5</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">5</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">天氧化池的工況即可恢復。同樣，當污水</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值為</span></span><span style=";font-family:'Times New Roman';font-size:14px">5</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">6</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">時(shí)，生物接觸氧化池仍然有一定的適應能力。</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值不僅影響細菌的生長(cháng)繁殖，而且影響有毒物質(zhì)的含量。如重金屬離子的溶解度因</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值的不同變化很大。此外，氨在堿性條件下形成的</span></span><span style=";font-family:'Times New Roman';font-size:14px">nh3</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">，毒性較</span></span><span style=";font-family:'Times New Roman';font-size:14px">nh4+</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">為強。氰在酸性條件下形成</span></span><span style=";font-family:'Times New Roman';font-size:14px">hcn</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">，在堿性條件下形成氰酸鹽，毒性作用減弱?？偟膩?lái)說(shuō)，無(wú)機質(zhì)由</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值左右其離子化，從而影響其毒害作用。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">③接觸停留時(shí)間</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">在生物接觸氧化處理條件下，氧化分解速度或硝化速度對接觸時(shí)間的依賴(lài)性很大。微生物對有機物的轉化過(guò)程與微生物機體的化學(xué)過(guò)程緊密地聯(lián)系著(zhù)，所以，無(wú)論是將復雜的有機物分解氧化為簡(jiǎn)單的無(wú)機物，或者是比較簡(jiǎn)單的分解氧化產(chǎn)物合成復雜的細胞物質(zhì)，都需要一定的時(shí)間。從降低廢水有機物含量這一角度來(lái)說(shuō)，有機物轉移到生物膜所需的時(shí)間是重要的。這個(gè)轉移實(shí)質(zhì)上是將微生物對廢水中的有機物吸著(zhù)吸附過(guò)程。這個(gè)轉移一般能夠在廢水同生物膜接觸后數分鐘內完成。但是，生物處理對廢水中有機物的凈化作用，不僅是由于生物吸附與吸著(zhù)作用，更重要的是吸附吸著(zhù)后的氧化分解和細胞合成作用，使有機物無(wú)機化。被吸附在生物膜上的有機物，經(jīng)氧化分解與合成全部轉化為穩定物質(zhì)所需時(shí)間較長(cháng)（數小時(shí)乃至數十天）。因此，處理時(shí)間愈長(cháng)，微生物對有機物的吸著(zhù)、吸附、降解作用愈徹底，處理水</span></span><span style=";font-family:'Times New Roman';font-size:14px">bod</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">殘留愈小，處理效果愈好；反之亦然。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">④溫度</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">溫度對生物處理有一定的影響。溫度高，微生物活力強，新陳代謝旺盛，氧化愈呼吸作用強，處理效果較好；反之，溫度較低，微生物的生命活動(dòng)受到抑制，處理效率受到影響。在生物接觸氧化法處理廢水時(shí)，由于接觸停留時(shí)間比活性污泥法短，因此，處理過(guò)程中污水受氣溫的影響不大，主要起作用的是水溫。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">水溫對處理效果的影響主要是對氨氮的去除。因為當硝化或完全硝化時(shí)，廢水中的氨氮被氧化呈亞硝酸鹽或硝酸鹽。而硝化細菌的繁殖常常受許多因素（水質(zhì)、溫度、</span></span><span style=";font-family:'Times New Roman';font-size:14px">ph</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">值）的影響，其中與溫度的關(guān)系*大。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">⑤供氧</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">一般供氧多有利于有機物的降解。當進(jìn)水溶解氧較高時(shí)，則生物降解速度快，溶解氧迅速減少，是出水溶解氧不會(huì )很多。當進(jìn)水溶解氧較低時(shí)，則生物降解速度慢，溶解氧消耗少，出水仍有少量溶解氧。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">溶解氧與處理水質(zhì)有關(guān)。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">溶解氧與水溫有關(guān)。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">溶解氧一般在</span></span><span style=";font-family:'Times New Roman';font-size:14px">3</span><span style=";font-family:宋體;font-size:14px">—</span><span style=";font-family:'Times New Roman';font-size:14px">6</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">毫克</span></span><span style=";font-family:'Times New Roman';font-size:14px">/</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">升。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">二、維護管理要點(diǎn)</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">與活性污泥法相比較，生物接觸氧化法的運轉管理有其特殊性。在活性污泥法處理中，整個(gè)處理系統的工作狀態(tài)可通過(guò)曝氣池、二次沉淀池和處理水水質(zhì)來(lái)檢測判斷。當曝氣池效能降低時(shí)，處理水質(zhì)急劇地惡化，因而在變化初期就可以發(fā)現異常情況。但在生物接觸氧化法處理中，即使氧化池污泥蓄積，填料局部發(fā)生堵塞，經(jīng)沉淀池處理的處理水水質(zhì)變化仍然是緩慢的，而不是簡(jiǎn)單地惡化。生物接觸氧化系統的工況變化優(yōu)先表現在氧化池出水中懸浮物質(zhì)增加，水質(zhì)混濁。同時(shí)由于流經(jīng)填料的水流阻力增大，氧化池水位上升。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">生物接觸氧化池比活性污泥法維護管理方便，其要點(diǎn)是防止剩余生物膜堵塞填料。為此，在運轉管理上應注意如下幾點(diǎn)。</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">1</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">、原水</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">①生物接觸氧化法對沖擊負荷的適應能力是強的，但仍需調節好原水水質(zhì)與水量。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">②盡量除去原水中的各種懸浮物，特別是纖維狀懸浮物，以防填料堵塞。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">③測定氮、磷等營(yíng)養物質(zhì)含量，特別是處理生產(chǎn)廢水時(shí)，要充分調查生產(chǎn)狀況，掌握排水量和濃度的變化幅度。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">2</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">、氧化池</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">①要仔細地觀(guān)察氧化池內的顏色、氣泡、臭氣、懸浮污泥和曝氣等狀況。一旦發(fā)現不正常，應立即采取相應措施。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">②通風(fēng)量瞬時(shí)增大易引起生物膜脫落，因此，通風(fēng)量宜徐徐增加。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">③氧化池反沖洗排泥時(shí)，特別是氧化池幾乎排空的時(shí)候如反沖洗不充分，會(huì )使填料支架上附著(zhù)污泥增加荷重，因此必須在排水的同時(shí)，用壓力水沖洗填料支架，使附著(zhù)污泥完全沖掉。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:'Times New Roman';font-size:14px">3</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">、沉淀池</span></span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">①與曝氣池相同，要仔細地觀(guān)察工況，及早發(fā)現狀態(tài)變化。</span></p><p style="text-indent:35px;line-height:150%"><span style=";font-family:宋體;font-size:14px">②實(shí)施活性污泥法的維護管理辦法，如堅持少排泥、勤排泥和定期排泥等。 </span></p><p><br/></p> </div> </div> </div> </div> </li></div> </div> </div><div id="tjdmak7" class="container-fluid move-monitor" id="content-0af06c0b-02bb-400b-af88-7da53afc1407" data-guid="a66b40ab-5b65-498b-ba1d-d8d7a801ecae" value="4"> <div id="zmwlqk4" class="row"> <div id="skzy3u4" class="col-md-12 column ui-sortable" 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