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id="ayghdrmc" class="tab_t">產(chǎn)品詳情</div> <div id="ayghdrmc" class="tab_t">設計參數</div> </div> <div id="ayghdrmc" class="tab_c_box"> <div id="ayghdrmc" class="tab_c"> <div id="ayghdrmc" class="text"> <p>生活污水處理設備是在傳統的城市污水處理工藝的基礎上發(fā)展起來(lái)的。常規城市污水處理工藝主要有：SBR法污水處理工藝、CASS法污水處理工藝、A/O法、曝氣生物濾池、MBR法、生物接觸氧化法等污水處理工藝。</p><p>1.SBR法污水處理工藝</p><p> SBR法是序列間歇式活性污泥法的簡(jiǎn)稱(chēng)，是一種按間歇曝氣方式來(lái)運行的活性污泥污水處理技術(shù)，又稱(chēng)序批式活性污泥法。 </p><p> 與傳統污水處理工藝不同， SBR技術(shù)采用時(shí)間分割的操作方式替代空間分割的操作方式，非穩定生化反應替代穩態(tài)生化反應，靜置理想沉淀替代傳統的動(dòng)態(tài)沉淀。它的主要特征是在運行上的有序和間歇操作，SBR技術(shù)的核心是SBR反應池，該池集均化、初沉、生物降解、二沉等功能于一池，無(wú)污泥回流系統。</p><p>SBR工藝優(yōu)點(diǎn)：</p><p> （1）理想的推流過(guò)程使生化反應推動(dòng)力增大，效率提高、運行效果穩定。 </p><p> （2）耐沖擊負荷，池內有滯留的處理水，對污水有稀釋、緩沖作用，有效抵抗水量和有機污物的沖擊。 </p><p> （3）反應池內存在DO、BOD5濃度梯度，有效控制活性污泥膨脹。</p><p> （4）具有良好的脫氮除磷效果。（5）工藝流程簡(jiǎn)單、造價(jià)低。主體設備只有一個(gè)序批式間歇反應器，無(wú)二沉池、污泥回流系統，調節池、初沉池也可省略，布置緊湊、占地面積省。</p><p>SBR工藝缺點(diǎn)：</p><p> （1）自動(dòng)化控制要求高。 </p><p> （2）排水時(shí)間短（間歇排水時(shí)），并且排水時(shí)要求不攪動(dòng)沉淀污泥層，因而需要專(zhuān)門(mén)的排水設備（潷水器），且對潷水器的要求很高。</p><p> （3）后處理設備要求大：如消毒設備很大、接觸池容積也很大，排水設施如排水管道也很大。</p><p>2.CASS法處理工藝</p><p> CASS是在SBR的基礎上發(fā)展起來(lái)的，即在SBR池內進(jìn)水端增加了一個(gè)生物選擇器，實(shí)現了連續進(jìn)水(沉淀期、排水期仍連續進(jìn)水)，間歇排水。設置生物選擇器的主要目的是使系統選擇出絮凝性細菌，其容積約占整個(gè)池子的10%。生物選擇器的工藝過(guò)程遵循活性污泥的基質(zhì)積累——再生理論，使活性污泥在選擇器中經(jīng)歷一個(gè)高負荷的吸附階段(基質(zhì)積累)，隨后在主反應區經(jīng)歷一個(gè)較低負荷的基質(zhì)降解階段，以完成整個(gè)基質(zhì)降解的全過(guò)程和污泥再生。</p><p>CASS法具有以下優(yōu)點(diǎn):</p><p> （1）建設費用低； </p><p> （2）運轉費用??； </p><p> （3）有機物去除率高，出水水質(zhì)好，通過(guò)過(guò)濾和消毒后，就可以作為中水回用； </p><p> （4）管理簡(jiǎn)單，運行可靠，不易發(fā)生污泥膨脹；污泥產(chǎn)量低，性質(zhì)穩定。 </p><p>CASS法有以下缺點(diǎn)：</p><p> （1）冬季或低溫會(huì )對運行有影響； </p><p> （2）構造復雜。 </p><p>3.A/O法處理工藝</p><p> A/O工藝是由缺氧池和好氧池串聯(lián)而成廢水處理設備，作用是去除有機物的同時(shí)得到良好的脫氮效果。A/O又稱(chēng)前置反硝化，最顯著(zhù)的工藝特征是將脫氮池設置在除碳過(guò)程的前面，先將廢水引入缺氧池，回流污泥中的反硝化菌利用原污水中的有機物作為碳源，將回流混合液中的大量硝態(tài)氮還原成氮氣，從而達到脫氮的目的。然后進(jìn)入后續的好氧池，O段后設沉淀池，部分沉淀污泥回流A段，以保證A段有足夠的硝酸鹽。 </p><p> 采用該方法優(yōu)點(diǎn)是處理效率高，流程簡(jiǎn)單，投資省，操作費用低，缺氧反硝化過(guò)程對污染物具有較高的降解效率容積負荷高，缺氧/好氧工藝的耐負荷沖擊能力強。但由于沒(méi)有獨立的污泥回流系統，從而不能培養出具有獨特功能的污泥，難降解物質(zhì)的降解率較低；若要提高脫氮效率，必須加大內循環(huán)比，因而加大了運行費用。另外，內循環(huán)液來(lái)自曝氣池，含有一定的DO，使A段難以保持理想的缺氧狀態(tài)，影響反硝化效果，脫氮率很難達到90%。 </p><p><br/></p> </div> </div> <div id="ayghdrmc" class="tab_c"> <div id="ayghdrmc" class="text"> <p><span style="color: rgb(34, 34, 34); font-family: Arial, Verdana, sans-serif; font-size: 12px; text-wrap: wrap; background-color: rgb(255, 255, 255);">生活污水處理設備是在傳統的城市污水處理工藝的基礎上發(fā)展起來(lái)的。常規城市污水處理工藝主要有：SBR法污水處理工藝、CASS法污水處理工藝、A/O法、曝氣生物濾池、MBR法、生物接觸氧化法等污水處理工藝。</span></p> </div> </div> </div> </div> </div> </div> </div> </div> <div id="ayghdrmc" class="iProduct" style="background-color:#f0f0f0;padding: 30px 0 50px;margin:0;"> <div id="ayghdrmc" class="wrap fix row pr"> <div id="ayghdrmc" class="iProduct_CON"> <div id="ayghdrmc" class="iProduct_tit tc smidd-12 wow fadeInUp first delay0" style="margin-top: 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