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市政污水除氮脫磷為何要外加碳源 </span> </div> </div></div><div class="ap-content-container"> <style> </style> <div class="uk-container category-list"> <div class="uk-grid" uk-grid> <div class="uk-width-expand@m"> <div class="el-item uk-card"> <div class> <h1 class="uk-margin uk-h3" data-title="市政污水除氮脫磷為何要外加碳源">市政污水除氮脫磷為何要外加碳源</h1> <div class="uk-article-meta"> <a href="/news001" rel="category"> 行業資訊 </a> / 2022-09-26 14:21:37 </div> <div class="anchor-wrap"> <div class="anchor-wrap-inner"> <span class="anchor-title max-line-1">市政污水除氮脫磷為何要外加碳源</span> <ul></ul> </div> </div> <div class="detail-content uk-margin-small-top"><p> 在脫氮除磷系統中, 碳源大致上消耗于釋磷、反硝化和異養菌正常代謝等方面。其中釋磷和反硝化的反應速率與進水<a href="http://www.arch-times.com" rel="noopener noreferrer" target="_blank">碳源</a>中的易降解部分, 尤其是揮發性有機脂肪酸( VFA) 的數量關系很大。城市污水中所含的易降解 COD 的數量是十分有限的,所以在城市污水生物脫氮除磷系統的釋磷和反硝化之間,大多處理系統都存在著因碳源不足而引發的脫氮除磷效果不佳的問題。</p><p>解決對策：</p><p>1) 工藝外部采取措施, 增加進水中易降解 COD 的數量, 例如取消初沉池, 污泥消化液回流, 將初沉池改為酸化池等都有一定作用；</p><p>2) 工藝內部考慮,合理地為反硝化和釋磷分配碳源, 常規脫氮除磷工藝總是優先照顧釋磷的需要, 把厭氧區放在工藝的前部, 缺氧區置后；</p><p> 有效的方法，就是外加碳源，選擇性價比高的碳源，噸水成本非常低，不需要復雜的工藝調整，簡單靈活。我國目前對于市政污水的氮磷指標提出了較嚴格的要求，所以除磷脫氮的問題既要結合現有工藝原位調整也可以借助簡單可行的輔助手段來解決。</p></div> <div class="uk-visible@m" data-item="share" data-sites="weibo,wechat,qq,qzone,douban" data-title="分享頁面" data-description="分享頁面"></div> </div> </div> </div> <div class="uk-width-auto@m"> <div class="sidebar"> <div class="author-wrapper border-1 uk-background-default"> <div class="new-list"> <div class="uk-panel"> <h3 class="uk-h4">最新動態</h3> <ul> <li class="uk-clearfix"> <a title="益世恒環?？萍颊\招各地代理商，加盟商" href="/article-detail/BnA7508b"> 益世恒環?？萍颊\招各地代理商，加盟商 </a> <span class="element element-text">2023-02-14 14:23:34</span> </li> <li class="uk-clearfix"> <a title="怎樣判斷污水是否碳源不足" href="/article-detail/NZy52qPB"> 怎樣判斷污水是否碳源不足 </a> <span class="element element-text">2022-10-09 14:12:25</span> </li> <li class="uk-clearfix"> <a title="為什么水產養殖中要外加碳源？" href="/article-detail/Nw3Z4l8N"> 為什么水產養殖中要外加碳源？ </a> <span class="element 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