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id="jlrjvtnppp" class="news_detail"> <h1 class="title">工業(yè)廢水治理技巧有哪些？</h1> <div id="jlrjvtnppp" class="info_title clearfix"> <h3 class="title_bar"> 發(fā)布日期：<span>2020-05-22 16:47</span> 來源：<span>http://www.28fashion.com</span> 點擊：<span><script src="http://www.28fashion.com/data/include/newshits.php?id=707"></script></span> </h3> <div id="jlrjvtnppp" class="share">  <div id="jlrjvtnppp" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div id="jlrjvtnppp" class="content"><p><a href="http://www.28fashion.com/product/cpfl100/" target="_self"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">工業(yè)廢水治理</span></a><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">技巧有哪些？</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">工業(yè)廢水（industrial wastewater ）包括生產(chǎn)廢水、生產(chǎn)污水及冷卻水，是指工業(yè)生產(chǎn)過程中產(chǎn)生的廢水和廢液，其中含有隨水流失的工業(yè)生產(chǎn)用料、中間產(chǎn)物、副產(chǎn)品以及生產(chǎn)過程中產(chǎn)生的污染物。工業(yè)廢水種類繁多，成分復(fù)雜。例如電解鹽工業(yè)廢水中含有汞，重金屬冶煉工業(yè)廢水含鉛、鎘等各種金屬，電鍍工業(yè)廢水中含氰化物和鉻等各種重金屬，石油煉制工業(yè)廢水中含酚，農(nóng)藥制造工業(yè)廢水中含各種農(nóng)藥等。由于工業(yè)廢水中常含有多種有毒物質(zhì)，污染環(huán)境對人類健康有很大危害，因此要開發(fā)綜合利用，化害為利，并根據(jù)廢水中污染物成分和濃度，采取相應(yīng)的凈化措施進行處置后，才可排放。</span><br/></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　常見的工業(yè)廢水的處理方法：</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　1、重金屬廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　對重金屬廢水的處理，通?？煞譃閮深悾阂皇鞘箯U水中呈溶解狀態(tài)的重金屬轉(zhuǎn)變成不溶的金屬化合物或元素，經(jīng)沉淀和上浮從廢水中去除，可用中和沉淀法、硫化物沉淀法、上浮分離法、電解沉淀法、隔膜電解法等；二是將廢水中的重金屬在不改變其化學(xué)形態(tài)的條件下進行濃縮和分離，可用反滲透法、電滲析法、蒸發(fā)法和離子交換法等。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　2、含氰廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　含氰廢水的處理方法有堿性氯化法、電解法、加壓水解法、生物化學(xué)法、生物鐵法、臭氧處理法、空氣吹脫法等。其中堿性氯化法應(yīng)用較廣，是在堿性條件下，采用次氯酸鈉、漂白粉、液氯等氯系氧化劑將氰化物破壞的方法。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　3、含酚廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　通常將質(zhì)量濃度高于1000mg/L的含酚廢水稱為高濃度含酚廢水，須回收酚后再進行處理；質(zhì)量濃度低于1000mg/L的含酚廢水稱為低濃度含酚廢水，可將酚濃縮回收后循環(huán)使用，回收酚的方法有溶劑萃取法、蒸汽吹脫法、吸附法、封閉循環(huán)法等。含酚質(zhì)量濃度在300mg/L以下的廢水可用生物氧化、化學(xué)氧化、物理化學(xué)氧化等方法進行處理后排放或回收。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　4、造紙工業(yè)廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　造紙工業(yè)廢水通常應(yīng)用浮選法回收白水中纖維性固體物質(zhì)，應(yīng)用燃燒法回收黑水中的鈉鹽，應(yīng)用中和法調(diào)節(jié)廢水pH值，應(yīng)用混凝沉淀去除廢水中懸浮固體，應(yīng)用化學(xué)沉淀法可脫色，好氧活性污泥處理法、真菌處理法一般也可得到較好效果。此外，還有采用反滲透、超過濾、電滲析等處理方法也有所應(yīng)用。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　5、印染工業(yè)廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　印染廢水可按水質(zhì)特點分別回收利用，如漂白煮煉廢水和染色印花廢水的分流，減少排放量。無害化處理則可分為物理處理法、化學(xué)處理法和生物處理法。物理處理法有沉淀法和吸附法等，化學(xué)處理法有中和法、混凝法和氧化法等，生物處理法有活性污泥、生物轉(zhuǎn)盤、生物轉(zhuǎn)筒和生物接觸氧化法等。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　6、化學(xué)工業(yè)廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　化學(xué)工業(yè)廢水一般分為三個級別處理。一級處理主要分離水中的懸浮固體物、膠體物、浮油或重油等，可采用自然沉淀、上浮等方法；二級處理主要是去除可用生物降解的有機溶解物和部分膠體物，通常采用生物法處理；三級處理主要是去除廢水中難以生物降解的有機污染物和溶解性無機污染物，常用方法有活性炭吸附法和臭氧氧化法等。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　7、食品工業(yè)廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　食品工業(yè)廢水一般宜采用生物處理法，如對出水水質(zhì)要求很高或因廢水中有機物含量很高，可采用兩級曝氣池或兩級生物濾池，或多級生物轉(zhuǎn)盤，或聯(lián)合使用兩種生物處理裝置，也可采用厭氧—需氧串聯(lián)的生物處理系統(tǒng)。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　8、冶金廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　冶金廢水處理的一般采用氧化還原法處理，即把溶解于廢水中的有毒有害物質(zhì)，經(jīng)過氧化還原反應(yīng)，轉(zhuǎn)化為無毒無害的新物質(zhì)。在氧化還原反應(yīng)中，有毒遇害物質(zhì)有作為還原劑時，需要外加空氣、臭氧、氯氣、次氯酸鈉等氧化劑；當有毒有害物質(zhì)作為氧化劑時，需要外加硫酸亞鐵、氯化亞鐵、鋅粉等還原劑。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　9、選礦廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　針對廢水中的污染物，可以分別采用不同的處理方法。懸浮物主要采用預(yù)沉淀、混凝/沉淀法；酸堿性廢水采用相互中和法；重金屬離子可采用共沉淀技術(shù)、吸附技術(shù)、離子交換法等；化學(xué)耗氧物可采用混凝/沉淀、生物降解、高級氧化、吸附法等。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　10、酸堿廢水的處理</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">　　高濃度酸堿廢水應(yīng)優(yōu)先考慮回收利用，根據(jù)水質(zhì)、水量和不同工藝要求，進行廠區(qū)或地區(qū)性調(diào)度，盡量重復(fù)使用；低濃度的酸堿廢水，應(yīng)進行中和處理，如酸、堿廢水相互中和或利用廢堿（渣）中和酸性廢水，利用廢酸中和堿性廢水等。</span></p><p style="text-align: center;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"><img src="/data/upload/image/20170511/1494493938791174.jpg" alt="工業(yè)廢水治理" width="334" height="220" border="0" vspace="0" title="工業(yè)廢水治理" style="width: 334px; height: 220px;"/></span></p></div> <h3 class="tag">相關(guān)標簽：<a href="http://www.28fashion.com/tag/%E9%87%8D%E5%BA%86%E5%BA%9F%E6%B0%B4%E6%B2%BB%E7%90%86">重慶廢水治理</a> </h3> <div id="jlrjvtnppp" class="page">上一篇：<a href="http://www.28fashion.com/news/706.html">幾種常見的如何治理污水的方法</a><br />下一篇：<span><a href="http://www.28fashion.com/news/708.html">廢氣凈化系統(tǒng)是由哪些部分組成的？</a></span></div> </div> <div id="jlrjvtnppp" class="relateproduct relate"><h4>最近瀏覽：</h4> <div id="jlrjvtnppp" class="content"> <ul id="relate_n" class="news_list clearfix"> </ul> </div> </div>  <div id="jlrjvtnppp" class="relate_list"> <div id="jlrjvtnppp" class="relateproduct relate"><h4>相關(guān)產(chǎn)品：</h4> <div id="jlrjvtnppp" class="content"> <ul id="relate_p" class="product_list clearfix"> <li> <a 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