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class="vfdphxf" id="indexb"> <div id="d5rrxb5" class="cplm"><img src="Template/Free001/Images/bacfn.jpg" border="0" align="absmiddle" /> <div id="hp9bh95" class="class_list"> <ul><li id="z59pv5j" class="bigclass "><a href="list_82.html" >廢氣處理工程</a></li> <li id="hvbbthh" class="bigclass "><a href="list_83.html" >廢水處理工程</a></li> </ul> </div> <div id="9zjvv9r" class="clear" style="height:30px;"></div> <img src="Template/Free001/Images/bdhny.jpg" border="0" align="absmiddle" /> </div> <div class="jx5ntjl" id="nrr"><div align="center"></div><div id="jz9pt9l" class="nbj"><h1><span><b></b>行業(yè)資訊</span><em><a href='index.html'>網(wǎng)站首頁(yè)</a> > <a href='list_12.html'>新聞動(dòng)態(tài)</a> > <a href='list_20.html'>行業(yè)資訊</a></em> <div id="ztpzhpv" class="clear"></div></h1> <p><div class="jt5hl95" id="newsview" class=" clearfix"> <div class="tfhb9h5" id="fontsizer"></div> <h2>廣東環(huán)保工程與廢水處理</h2> <div class="pdbnt9p" id="newsview_cs">作者：admin　　來(lái)源：http://www.hljxwh.com/　　更新時(shí)間：2020-04-26　　閱讀數：502 </div> <div class="t9llx55" id="content"><p> 　　工業(yè)廢水是指工業(yè)出產(chǎn)進(jìn)程中發(fā)生的廢水、污水和廢液,其中含有隨水流失的工業(yè)出產(chǎn)用料、中間產(chǎn)品和產(chǎn)品以及出產(chǎn)進(jìn)程中發(fā)生的污染物。隨著(zhù)工業(yè)的迅速發(fā)展,廢水的種類(lèi)和數量迅猛添加,對水體的污染也日趨廣泛和嚴峻,威脅人類(lèi)的健康和安全。因此,關(guān)于保護環(huán)境來(lái)說(shuō),工業(yè)廢水的處理比城市污水的處理更為重要。 </p> <p> <img src="UpLoadFile/image/smallpic/廢水處理工程 (4).jpg" width="300" height="300" alt="廣東環(huán)保工程公司" /> </p> 　　一、工業(yè)廢水分類(lèi)及處理的基本原則<br /> 　　工業(yè)廢水分類(lèi)通常有以下三種:第一種是按工業(yè)廢水中所含首要污染物的化學(xué)性質(zhì)分類(lèi),含無(wú)機污染物為主的為無(wú)機廢水,含有機污染物為主的為有機廢水。例如電鍍廢水和礦物加工進(jìn)程的廢水,是無(wú)機廢水;食物或石油加工進(jìn)程的廢水,是有機廢水。第二種是按工業(yè)企業(yè)的產(chǎn)品和加工對象分類(lèi),如冶金廢水、造紙廢水、煉焦煤氣廢水、金屬酸洗廢水、化學(xué)肥料廢水、紡織印染廢水、染料廢水、制革廢水、農藥廢水、電站廢水等。第三種是按廢水中所含污染物的首要成分分類(lèi),如酸性廢水、堿性廢水、含氰廢水、含鉻廢水、含鎘廢水、含汞廢水、含酚廢水、含醛廢水、含油廢水、含硫廢水、含有機磷廢水和放射性廢水等。前兩種分類(lèi)法不涉及廢水中所含污染物的首要成分,也不能表明廢水的危害性。第三種分類(lèi)法,明確地指出廢水中首要污染物的成分,能表明廢水一定的危害性。<br /> 　　處理的基本原則:<br /> 　　(一)優(yōu)先選用無(wú)毒出產(chǎn)工藝代替或變革落后出產(chǎn)工藝,盡可能在出產(chǎn)進(jìn)程中杜絕或削減有毒有害廢水的發(fā)生。<br /> 　　(二)在運用有毒原料以及發(fā)生有毒中間產(chǎn)品和產(chǎn)品進(jìn)程中,應嚴厲操作、監督,消除滴漏,削減流失,盡可能選用合理流程和設備。<br /> 　　(三)含有劇毒物質(zhì)廢水,如含有一些重金屬、放射性物質(zhì)、高濃度酚、氰廢水應與其它廢水分流,以便處理和回收有用物質(zhì)。<br /> 　　(四)流量較大而污染較輕的廢水,應經(jīng)恰當處理循環(huán)運用,不宜排入下水道,以免添加城市下水道和城市污水處理負荷。<br /> 　　(五)相似城市污水的有機廢水,如食物加工廢水、制糖廢水、造紙廢水,可排入城市污水體系進(jìn)行處理。<br /> 　　(六)一些可以生物降解的有毒廢水,如酚、氰廢水,應先經(jīng)處理后,按答應排放規范排入城市下水道,再進(jìn)一步生化處理。<br /> 　　(七)含有難以生物降解的有毒廢水,應單獨處理,不該排入城市下水道。工業(yè)廢水處理的發(fā)展趨勢是把廢水和污染物作為有用資源回收利用或實(shí)行閉路循環(huán)。<br /> 文章來(lái)源：廣東環(huán)保工程公司<a href="../" target="_blank"> http://www.hljxwh.com/</a><br /></div> <div id="d9pjnjt" class="flickr"></div> <div class="nbf5rxx" id="pageview" class="clear"> <ul> <li><a href="content_1181.html" title="Previous">上一條：化工廢水兩相厭氧二級好氧處理技術(shù)</a></li> <li><a href="content_1179.html" title="Next">下一條：省錢(qián)省電的工業(yè)有機廢氣治理方法</a></li> </ul> </div> </div></p></div> </div><div id="bdrbfrn" class="clear" 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