實(shí)驗(yàn)室廢棄物，咋處理？-泰思楓（上海）環(huán)?？萍加邢薰?/title> <link rel="stylesheet" type="text/css" href="http://public.mtnets.com/public/css/swiper.min.css"> <script src="http://public.mtnets.com/public/js/jqueryNew.min.js"></script> <script src="http://public.mtnets.com/public/js/swiper.min.js"></script> <link rel="stylesheet" type="text/css" href="/skins/471089/css/style.css"/>  <script language="javascript" type="text/javascript"> var nav= '5'; </script>  <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http://v2790.cn/Article-3130841.html", "title": "實(shí)驗(yàn)室廢棄物，咋處理？", "pubDate": "2022-09-13T09:28:37", "upDate": "2022-09-13T09:28:37" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('https://chat.chem17.com',474563) }</script><script>!window.jQuery && document.write('<script 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id="xzvjf3xd" class="ny_content"> <div id="xzvjf3xd" class="w1200 clear"> <div id="xzvjf3xd" class="ny_bread_nav"><img src="/skins/471089/images/home.png" />當(dāng)前位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 實(shí)驗(yàn)室廢棄物，咋處理？</div> </div> <div id="xzvjf3xd" class="ny_content_bd"> <div id="xzvjf3xd" class="w1200 clear ny_newsdetail"> <h1 class="ny_newsdetail_title">實(shí)驗(yàn)室廢棄物，咋處理？</h1> <div id="xzvjf3xd" class="ny_newsdetail_tips">更新時(shí)間：2022-09-13 點(diǎn)擊次數(shù)：1453</div> <div id="xzvjf3xd" class="ny_newsdetail_con"> <p style="text-align: center; line-height: 2em; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 24px;"><span style="font-family: 黑體, SimHei; font-size: 24px; text-align: center;">實(shí)驗(yàn)室廢棄物，咋處理？</span></span></p><p style="line-height: 2em; margin-bottom: 10px;"><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px;"><br/></span></p><p style="text-align: left; line-height: 2em; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(51, 51, 51); letter-spacing: 0px; font-weight: normal;">食品實(shí)驗(yàn)的過程中產(chǎn)生的廢氣、廢液、廢渣，其成分相對(duì)比較復(fù)雜，污染的范圍也相對(duì)較廣，并且“三廢"產(chǎn)生的時(shí)間不能確定，使實(shí)驗(yàn)中難以集中的對(duì)“三廢"進(jìn)行處理，只能在實(shí)驗(yàn)結(jié)束后統(tǒng)一回收，給化學(xué)實(shí)驗(yàn)污染治理帶來了一定的困難。本篇文章帶你了解處理“三廢"的正確步驟~</span></strong></span></p><p style="line-height: 2em; margin-bottom: 10px;"><img src="https://img65.chem17.com/9/20220913/637986570240658269740.png" title="image.png" alt="image.png" width="733" height="409" style="width: 733px; height: 409px;"/></p><p><br/></p><p style="text-align: center; line-height: 2em; margin-bottom: 10px;"><span style="font-size: 18px; font-family: 黑體, SimHei;">“三廢"處理現(xiàn)狀</span></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 0px; font-size: 18px; font-family: 黑體, SimHei;">很多實(shí)驗(yàn)室的環(huán)保意識(shí)不夠強(qiáng)，僅僅把環(huán)保作為口號(hào)，雖然簽訂了相關(guān)的環(huán)保協(xié)議，但是實(shí)驗(yàn)中產(chǎn)生的廢氣、廢液、廢渣仍然不經(jīng)處理直接排放。</span></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 0px; font-size: 18px; font-family: 黑體, SimHei;"></span></p><p style="text-align: center"><img style="max-width: 800px; max-height: 300%; width: 733px; height: 436px;" src="https://img65.chem17.com/9/20220913/637986575575956248322.jpg" title="實(shí)驗(yàn)室廢水廢液處理系統(tǒng)轉(zhuǎn)曲.jpg" alt="實(shí)驗(yàn)室廢水廢液處理系統(tǒng)轉(zhuǎn)曲.jpg" width="733" height="436"/></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 0px; font-size: 18px; font-family: 黑體, SimHei;"></span><br/></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">1</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、廢氣的處理</span></strong></span><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px;"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(0, 128, 255); letter-spacing: 1px;"></span></strong><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;"><br/> </span><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">在食品實(shí)驗(yàn)中產(chǎn)生的廢氣的特點(diǎn)是有毒、有害、強(qiáng)腐蝕性和具有刺鼻的氣味</span></strong></span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">，廢氣的主要成分包括硫氧化物、碳氧化物、氮氧化物以及眾多非金屬氫化物。對(duì)于這些化學(xué)實(shí)驗(yàn)廢氣的處理方法一般是利用通風(fēng)櫥和換氣扇排放到室外環(huán)境中，雖然這種廢氣處理的方式在一定程度上保證了化學(xué)實(shí)驗(yàn)室室內(nèi)的空氣質(zhì)量，也對(duì)化學(xué)實(shí)驗(yàn)操作人員的健康起到保護(hù)的作用，但是對(duì)實(shí)驗(yàn)室周圍的空氣環(huán)境造成了污染，破壞了大氣環(huán)境的質(zhì)量。</span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 0px;"><br/> 所以化學(xué)實(shí)驗(yàn)室應(yīng)該采取適當(dāng)?shù)姆椒▽?duì)實(shí)驗(yàn)廢氣進(jìn)行綠色化處理后再排放。</span><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 0px;">現(xiàn)在常用的處理方法是燃燒法、吸附法和催化法等</span></strong></span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 0px;">，對(duì)實(shí)驗(yàn)中產(chǎn)生的廢氣進(jìn)行凈化后再排放到室外的空氣環(huán)境中，保證實(shí)驗(yàn)區(qū)周圍大氣環(huán)境的質(zhì)量。但是在食品實(shí)驗(yàn)中，廢氣污染的情況依然存在對(duì)參與化學(xué)實(shí)驗(yàn)的師生造成一定的危害。</span></span></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 0px;">2</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 0px;">、廢液的處理</span></strong></span><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(0, 128, 255); letter-spacing: 0px;"></span></strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 0px;"><br/> 在食品實(shí)驗(yàn)中，廢液是最主要的廢棄物，其相較于工業(yè)產(chǎn)生的廢水，雖然數(shù)量較少，但是污染成分的種類繁多，沒有有效的治理裝置，給廢液的治理帶來了極大的難度。</span></span></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="font-size: 18px;"><span style="font-family: 黑體, SimHei;"><span style="font-family: 微軟雅黑, sans-serif; color: rgb(34, 34, 34); letter-spacing: 0px;">很多高校在化學(xué)實(shí)驗(yàn)過程中會(huì)將產(chǎn)生的廢液直接傾倒，特別是對(duì)于普遍認(rèn)為無毒的氯化鈉、碳酸鉀等會(huì)直接排入到下水道。但是我國下水道的污水最終是排放在江河中，</span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(0, 0, 0);"><strong><span style="font-family: 微軟雅黑, sans-serif; letter-spacing: 0px;">長(zhǎng)期這樣的廢液排放方式會(huì)對(duì)當(dāng)?shù)氐乇硭偷叵滤斐蓢?yán)重的污染。</span></strong></span><span style="font-family: 微軟雅黑, sans-serif; color: rgb(34, 34, 34); letter-spacing: 0px;">特別是很多化學(xué)廢液中含有大量的重金屬物質(zhì)，對(duì)當(dāng)?shù)孛癖姷挠盟斐蓸O大的困擾。</span></span><span style="font-family: 微軟雅黑, sans-serif; color: rgb(34, 34, 34); letter-spacing: 0px;"></span></span><span style="font-family: 楷體, 楷體_GB2312, SimKai; font-size: 18px;"><span style="font-size: 12px; font-family: PingFangTC-light, serif; color: rgb(34, 34, 34); letter-spacing: 0px;"><br/> </span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(192, 80, 77);"><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 0px;">3</span></strong><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 0px;">、廢渣的處理</span></strong></span><span style="font-size: 12px; font-family: PingFangTC-light, serif; color: rgb(34, 34, 34); letter-spacing: 0px;"><br/> </span><span style="color: rgb(34, 34, 34); letter-spacing: 0px; font-family: 黑體, SimHei; font-size: 18px;">化學(xué)實(shí)驗(yàn)產(chǎn)生的廢渣組成的成分十分復(fù)雜，并且當(dāng)前沒有對(duì)實(shí)驗(yàn)室廢渣處理的制度條例，所以化學(xué)實(shí)驗(yàn)室任意丟棄實(shí)驗(yàn)廢渣的現(xiàn)象依然普遍存在。</span></span></p><p style="text-align: justify; background: white; line-height: 2em; margin-bottom: 10px;"><span style="font-size: 18px; font-family: 黑體, SimHei;"><span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 0px;">例如，在實(shí)驗(yàn)過程中產(chǎn)生的廢玻璃、廢紙屑直接倒入垃圾桶，然后這些實(shí)驗(yàn)廢渣最終進(jìn)入城市垃圾體系，直接影響到城市居民的生活。盡管有些化學(xué)實(shí)驗(yàn)室對(duì)產(chǎn)生的化學(xué)實(shí)驗(yàn)廢渣采取固化、定點(diǎn)深埋等方式。但是</span><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; letter-spacing: 0px;">化學(xué)實(shí)驗(yàn)廢渣中含有重金屬物質(zhì)，進(jìn)入土壤后通過多種途徑進(jìn)入人類的食物鏈中，對(duì)人體的神經(jīng)系統(tǒng)、消化系統(tǒng)等造成嚴(yán)重的破壞。</span></strong></span></span></p><p><br/></p><p style="text-align: center; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 24px;">實(shí)驗(yàn)室廢棄物，咋處理？</span></p><p><br/></p><p><br/></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">實(shí)驗(yàn)室在日常分析測(cè)試后必然會(huì)產(chǎn)生廢棄物，其中不乏劇毒物質(zhì)、致癌物等等，那么，如何正確處理這些廢棄物呢？</span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">一、廢棄物收集的一般辦法</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(192, 80, 77);"><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 1px;">1</span></strong><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 1px;">、分類收集法：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">按廢棄物的類別性質(zhì)和狀態(tài)不同，分門別類收集。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-size: 18px; font-family: 黑體, SimHei; color: rgb(192, 80, 77);"><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 1px;">2</span></strong><strong><span style="font-family: 黑體, SimHei; font-size: 18px; letter-spacing: 1px;">、按量收集法：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">根據(jù)實(shí)驗(yàn)過程中排出的廢棄物的量的多少或濃度高低予以收集。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">3</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、相似歸類收集法：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">性質(zhì)或處理方式、方法等相似的廢棄物應(yīng)收集在一起。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">4</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、單獨(dú)收集法：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">危險(xiǎn)廢棄物應(yīng)予以單獨(dú)收集處理。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px;"><span style="font-size: 18px; font-family: 黑體, SimHei;"><strong><span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 1px;">二、處理廢棄物的一般原則</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">在證明廢棄物已相當(dāng)稀少而又安全時(shí)，可以排放到大氣或排水溝中；盡量濃縮廢液，使其體積變小，放在安全處隔離儲(chǔ)存；利用蒸餾、過濾、吸附等方法，將危險(xiǎn)物分離，而只棄去安全部分；無論液體或固體，凡能安全燃燒的則燃燒，但數(shù)量不宜太大，燃燒時(shí)切勿殘留有害氣體或燒余物，如不能焚燒時(shí)，要選擇安全場(chǎng)所填埋，不適合裸露在地面上。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">一般有毒氣體可通過通風(fēng)櫥或通風(fēng)管道，經(jīng)空氣稀釋后排除，大量的有毒氣體必須通過與氧充分燃燒或吸附處理后才能排放。</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">廢液應(yīng)根據(jù)其化學(xué)特性選擇合適的容器和存放地點(diǎn)，通過密閉容器存放，不可混合貯存，標(biāo)明廢物種類，貯存時(shí)間，定期處理。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">三、無機(jī)廢棄物的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">1</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、鎘廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">用消石灰將鎘離子轉(zhuǎn)化成難溶于水的</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">Cd(OH)2</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">沉淀。</span></strong></span><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color:red letter-spacing: 1px;"></span></strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">即在鎘廢液中加入消石灰，調(diào)節(jié)pH值至10.6-11.2，充分?jǐn)嚢韬蠓胖?，分離沉淀，檢測(cè)濾液中無鎘離子時(shí)，將其中和后即可排放。</span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">2</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、含六價(jià)鉻廢棄物的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">主要采用鐵氧吸附法，</span></strong></span><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color:red letter-spacing: 1px;"></span></strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">即利用六價(jià)鉻氧化性采用鐵氧吸附法，將其還原為三價(jià)鉻，再向此溶液中加入消石灰，調(diào)節(jié)pH為8-9，加熱到80度左右，放置一夜，溶液由黃色變?yōu)榫G色，排放廢液。</span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">3</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、含鉛廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">原理：用</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">Ca(OH)2</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">把二價(jià)鉛轉(zhuǎn)為難溶的氫氧化鉛，</span></strong></span><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color:red letter-spacing: 1px;"></span></strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">然后采用鋁鹽脫鉛法處理，即在廢液中加入消石灰，調(diào)節(jié)pH至11，使廢液中鉛生成氫氧化鉛沉淀，然后加入硫酸鋁，將pH降至7-8，即生成氫氧化鋁和氫氧化鉛共沉淀，放置，使其充分澄清后，檢測(cè)濾液中不含鉛，分離沉淀，排放廢液。</span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">4</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、含砷廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px; font-size: 18px;">原理：利用氫氧化物的沉淀吸附作用，彩鎂鹽脫砷法，在含砷廢液中加入鎂鹽，調(diào)節(jié)pH為9.5-10.5，生成氫氧化鎂沉淀，利用新生的氫氧化鎂和砷化合物的吸附作用，攪拌，放置一夜，分離沉淀，排放廢液。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">5</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、含汞廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px; font-size: 18px;">原理：用硫化鈉將汞轉(zhuǎn)變?yōu)殡y溶于水的硫化汞，然后使其與硫化亞鐵共沉淀而分離除去，即在含汞廢液中加入與汞離子濃度1：1當(dāng)量的硫化鈉，然后加入硫酸亞鐵，使其生成硫化亞鐵，將汞離子沉淀，分離沉淀，排放廢液。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: rgb(192, 80, 77);"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; letter-spacing: 1px;">6</span></strong><strong><span style="font-family: 黑體, SimHei; letter-spacing: 1px;">、有害</span></strong></span><strong><span style="font-family: 黑體, SimHei; font-size: 18px;">廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;">其衍生物都是劇毒，因此處理時(shí)必須在通風(fēng)櫥內(nèi)進(jìn)行。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px; font-size: 18px;">原理：利用漂白粉或次氯酸鈉的氧化性將氰根離子轉(zhuǎn)化為無害的氣體。即先用堿溶液將溶液PH值調(diào)到大于11后，加入次氯酸鈉或漂白粉，充分?jǐn)嚢瑁?/span>分解為二氧化碳和氮?dú)?，放?4h后排放。</p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">7</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、酸堿廢液的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px; font-size: 18px;">將廢酸集中回收，或用來處理廢堿，或?qū)U酸先用耐酸玻璃纖維過濾，濾液加堿中和，調(diào)pH至6-8后即可排放，少量濾渣埋于地下。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">四、有機(jī)廢棄物的處理</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">1</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、含甲醇、乙醇、醋酸類的可溶性溶劑處理：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">由于這些溶劑能被細(xì)菌分解，可以用大量的水稀釋后排放。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">2</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、氯仿和四氯化碳廢液：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: rgb(34, 34, 34); letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">水浴蒸餾，收集餾出液，密閉保存，回用。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(192, 80, 77);"><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">3</span></strong><strong><span style="font-size: 18px; font-family: 黑體, SimHei; letter-spacing: 1px;">、烴類及其含氧衍生物的處理：</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;">是用<span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-family: 黑體, SimHei; letter-spacing: 1px;">活性碳吸附</span></strong></span><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">。目前，有機(jī)污染物</span></span><span style="font-family: 黑體, SimHei; font-size: 18px;">的處理方法是生物降解法、活性污泥法等。</span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><strong><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">五、廢棄物處理時(shí)的注意事項(xiàng)</span></strong></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">1、隨著廢液的組成不同，在處理過程中，往往伴隨著有毒氣體以及發(fā)熱、爆炸等危險(xiǎn)，因此，</span><span style="font-family: 黑體, SimHei; font-size: 18px; color: rgb(0, 0, 0);"><strong><span style="font-family: 黑體, SimHei; letter-spacing: 1px;">處理前必須充分了解廢液的性質(zhì)，然后分別加入少量所需添加的藥品，必須邊觀察邊操作。</span></strong></span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-size: 18px; font-family: 黑體, SimHei;"><span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 1px;">2</span><span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 1px;">、</span> <span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 1px;">含有絡(luò)離子、螯合物之類的物質(zhì)，只加入一種消除藥品，有時(shí)不能處理*</span> <span style="font-size: 18px; color: rgb(34, 34, 34); letter-spacing: 1px;">，因此，要采取適當(dāng)措施，以防止一部分還未處理的有害物質(zhì)排出。</span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">3、</span> <span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">對(duì)于為了分解氰根而加入的次氯酸鈉，以致產(chǎn)生游離余氯，以及用硫化物沉淀處理廢液而產(chǎn)生水溶性硫化物的情況，其處理后的廢水往往有害，因此，必須進(jìn)行再處理。</span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="font-family: 黑體, SimHei; font-size: 18px;"><span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">4、</span> <span style="font-family: 黑體, SimHei; color: rgb(34, 34, 34); letter-spacing: 1px;">對(duì)于用量較大的有機(jī)溶劑，原則上要回收利用，而將其殘?jiān)右蕴幚怼?/span></span></p><p style="text-align: justify; background: white; margin-bottom: 10px; line-height: 2em;"><span style="color: black; letter-spacing: 1px; font-family: 黑體, SimHei; font-size: 18px;">實(shí)驗(yàn)室廢棄物處理不好，不僅會(huì)影響個(gè)人的身體健康，更會(huì)對(duì)環(huán)境產(chǎn)生影響！</span></p> </div> <div id="xzvjf3xd" class="ny_PrevNext"> <ul> <li>上一篇：<a href="/Article-3123855.html">實(shí)驗(yàn)室裝修設(shè)計(jì)需要注意哪些要點(diǎn) 這篇詳細(xì)告訴你</a></li> <li>下一篇：<a href="/Article-3134837.html">什么是無管道凈氣型通風(fēng)柜</a></li> </ul> </div> </div> </div> </div>   <div id="xzvjf3xd" class="h_foot"> <div id="xzvjf3xd" class="pz_down"> <div id="xzvjf3xd" class="w1200 clear"> <div id="xzvjf3xd" class="footT"> <div id="xzvjf3xd" class="footAddr"> <div id="xzvjf3xd" class="footTit">泰思楓（上海）環(huán)?？萍加邢薰?/div> <div id="xzvjf3xd" 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