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<span>石英砂酸洗廢水處理注意事項(xiàng)</span></p> </div>   <div id="53hfvpr" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">石英砂酸洗廢水處理注意事項(xiàng)</h1> <div id="53hfvpr" class="NyNewsdetail_tips">更新時間：2024-07-11 點(diǎn)擊次數(shù)：861</div> <div id="53hfvpr" class="NyNewsdetail_con" id="c_detail_wrap"> <div>　　酸洗是高純石英砂礦提純不可少的一步，尤其是光伏玻璃用高純石英砂原料。利用石英不溶于酸，其它雜質(zhì)礦物能被酸液溶解的特點(diǎn)，實(shí)現(xiàn)對石英的選礦提純，常用的酸有氫氟酸、硫酸、鹽酸、草酸、硝酸等，各種酸的配酸濃度根據(jù)石英砂中雜質(zhì)種類及含量而定；氫氟酸、硫酸、鹽酸、草酸、硝酸等，都是常用的酸洗酸。這些酸的選擇和配酸濃度的確定，主要依據(jù)石英砂中雜質(zhì)的種類及含量。不同的雜質(zhì)礦物對酸的敏感性和反應(yīng)速率不同，因此需要選擇合適的酸和配酸濃度。洗廢液中殘留有大量的H+、F-、SO4-、Cl-、C2O42-、NO3-等離子，如果不經(jīng)處理直接外排，則易造成環(huán)境、土壤和地下水污染，以及地下管道腐蝕等嚴(yán)重后果，尤其是氟污染和氟離子腐蝕。因此，要對石英砂酸洗后的廢水進(jìn)行嚴(yán)格處理，達(dá)到國家排放標(biāo)準(zhǔn)方可排放。比如：根據(jù)我國現(xiàn)行的污水排出標(biāo)準(zhǔn)GB8978-1996規(guī)定：排放水中的F-的質(zhì)量濃度不超過10mg/L。<br /> </div><div>　　然而，在酸洗廢水處理的一系列過程中，殘留酸液對處理設(shè)施的腐蝕非常嚴(yán)重，常規(guī)的環(huán)氧、乙烯基等重防腐涂料已無法滿足防護(hù)要求，往往半年不到就被破壞的一塌糊涂。因此，通過構(gòu)建水池涂刷防腐涂層進(jìn)行酸洗廢水收集處理的工藝嚴(yán)重影響酸洗石英砂雜質(zhì)的去除率，水池開裂或防腐涂層扛不住氫離子及各種酸根離子的腐蝕，酸洗廢水處理不當(dāng)，會對環(huán)境、土壤等造成嚴(yán)重的影響。</div><div align="center"><img src="https://img48.hbzhan.com/9/20240711/638562858915598520459.jpg" alt="40噸錐底酸洗罐2 (12)江西案例.jpg" width="750" height="750" align="" border="0" /></div><div>　　需要進(jìn)行處理的洗砂廢水主要包括酸洗沉淀物、脫酸廢水、洗罐廢水、水洗后脫水廢水、石英砂儲存庫滲濾廢水等。因此，酸洗廢水應(yīng)當(dāng)用容器收集并及時處理。<br /> </div> </div> <div id="53hfvpr" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-1284194.html">10噸錐底圓桶養(yǎng)殖桶攪拌桶發(fā)酵桶好清洗敞口大桶</a></li> <li>下一篇：<a href="/Article-1284053.html">石英砂礦提純酸洗酸液儲存罐</a></li> </ul> </div> </div>   <div id="53hfvpr" class="foot_box"> <div id="53hfvpr" class="footCon"> <div id="53hfvpr" class="foot_t w1300"> <div id="53hfvpr" class="foot_lv"> <div id="53hfvpr" class="foot_logo"><img src="/skins/600058/images/foot_logo.png" /></div> <div 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