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style="text-align:left;">指標(biāo)名稱</p><p style="text-align:left;">指標(biāo)</p><p style="text-align:left;">外觀：</p><p style="text-align:left;">乳白至淡黃色不透明球狀顆粒</p><p style="text-align:left;">出廠型式：</p><p style="text-align:left;">氯型</p><p style="text-align:left;">含水量：</p><p style="text-align:left;">50.00-60.00</p><p style="text-align:left;">質(zhì)量全交換容量 mmol/g ：</p><p style="text-align:left;">≥3.8</p><p style="text-align:left;">體積全交換容量 mmol/ml ：</p><p style="text-align:left;">≥1.2</p><p style="text-align:left;">濕視密度 g/ml ：</p><p style="text-align:left;">0.65-0.73</p><p style="text-align:left;">濕真密度 g/ml ：</p><p style="text-align:left;">1.060-1.100</p><p style="text-align:left;">范圍粒度：</p><p style="text-align:left;">(0.315-1.25mm)≥95</p><p style="text-align:left;">下限粒度：</p><p style="text-align:left;">(<0.315mm)≤1</p><p style="text-align:left;">有效粒徑 mm ：</p><p style="text-align:left;">0.400-0.700</p><p style="text-align:left;">均一系數(shù) ：</p><p style="text-align:left;">≤1.60</p><p style="text-align:left;">磨后圓球率：</p><p style="text-align:left;">≥90</p><p style="text-align:left;">使用時(shí)參考指標(biāo)：</p><p style="text-align:left;">指標(biāo)名稱</p><p style="text-align:left;">指標(biāo)</p><p style="text-align:left;">pH范圍</p><p style="text-align:left;">1-14</p><p style="text-align:left;">高使用溫度°C</p><p style="text-align:left;">80</p><p style="text-align:left;">轉(zhuǎn)型膨脹率(Na+-H+)</p><p style="text-align:left;">≤20</p><p style="text-align:left;">工作交換容量 mmol/L</p><p style="text-align:left;">≥400</p><p style="text-align:left;">運(yùn)行流速 m/h</p><p style="text-align:left;">15-30</p><p>d201大孔強(qiáng)堿性陰離子交換樹脂的再生與步驟在制取試劑水的過程中，水中的陽、陰離子分別與陽、陰離子交換樹脂上的H+或OH-進(jìn)行交換，當(dāng)離子交換樹脂上的H+或OH-被交換完后。離子交換樹脂就不再具有繼續(xù)交換水中陽、陰離子的能力，這稱為離子交換樹脂的“失效"。向已“失效"的離子交換樹脂通入化學(xué)試劑，使樹脂重新恢復(fù)交換水中陽、陰離子的能力，這個(gè)過程稱為再生。所通人的化學(xué)試劑被稱為再生劑。離子交換樹脂的再生，其實(shí)質(zhì)就是離子交換制水過程的逆過程。</p><p><br/></p><p></p><p>離子交換樹脂</p><p><span><strong><span>　　</span>陽離子交換柱的再生</strong></span></p><p>　　1、反洗</p><p>　　將自來水從交換柱底部通入，從頂部排出，對(duì)柱內(nèi)樹脂進(jìn)行反洗。反洗有三個(gè)目的：一是松動(dòng)壓實(shí)的樹脂層，以利于樹脂與再生劑充分接觸；二是洗去樹脂層中的碎粒和其他雜質(zhì)；三是排除樹脂層中的氣泡。反洗水的大小，以柱內(nèi)樹脂達(dá)到懸浮狀態(tài)(松動(dòng)35-50)又不跑出正常顆粒樹脂為限，洗至排水清晰，時(shí)間一般為15-20min。</p><p>　　2、進(jìn)再生液</p><p>　　將再生酸溶液從交換柱頂部通人，再生廢液從底部排出，控制HCl用量為樹脂量的4-5倍，HCl濃度2-4(優(yōu)級(jí)純)，注酸流速控制在5～7min，注酸時(shí)間不少于30min。</p><p></p><p>離子交換樹脂</p><p>　　3、正洗</p><p>　　將自來水從交換柱頂部通入，廢水從底部排出，控制正洗流速為10m/h，對(duì)柱內(nèi)樹脂進(jìn)行正洗。待正洗出水硬度<5iaxnol/L，酸度<2～3mmol/L時(shí)即可停止再生。</p><p><span><strong><span>　　</span>陰離子交換柱的再生</strong></span></p><p>　　1、反洗</p><p>　　將陽離子交換柱出水從陰交換柱底部通入，從頂部排出，對(duì)柱內(nèi)樹脂進(jìn)行反洗，反洗水的大小，以柱內(nèi)樹脂達(dá)到懸浮狀態(tài)(松動(dòng)40～60)又不跑出正常顆粒樹脂為限，洗至排水清晰，時(shí)間一般為10-20min。</p><p></p><p>離子交換樹脂</p><p>　　2、進(jìn)再生液</p><p>　　將再生堿溶液從交換柱頂部通入，再生廢液從底部排出，控制NaOH用量為樹脂量的4～5倍，NaOH濃度2-3(優(yōu)級(jí)純)，注堿流速在5～7m/h，注堿時(shí)間30～50min。</p><p>　　3、正洗</p><p>　　將陽交換柱出水從交換柱頂部通入，廢水從底部排出，控制正洗流速為10m/h，對(duì)柱內(nèi)離子交換樹脂進(jìn)行正洗。待正洗水中堿度低于2～3mmol/L、HSiOf小于100μg/L時(shí)，即可停止正洗。</p> 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