材料导报
材料導報
재료도보
MATERIALS REVIEW
2015年
16期
79-81,84
,共4页
秦芳%喻杏元%蒋钦凤%付硕%陈金毅
秦芳%喻杏元%蔣欽鳳%付碩%陳金毅
진방%유행원%장흠봉%부석%진금의
水滑石%腐殖酸%吸附
水滑石%腐殖痠%吸附
수활석%부식산%흡부
hydrotalcite%humic acid%adsorption
采用共沉淀法制备了 Mg/Al 水滑石,并在不同温度下煅烧。探究了煅烧温度、材料投加量、pH 值、腐殖酸初始浓度对水滑石去除腐殖酸的影响。结果表明,当金属物质的量比为3的 Mg/Al 水滑石投加量为0.5 g/L, pH 值为8.5,温度为25℃时,水滑石对10 mg/L 的腐殖酸的去除率能达到96.64%,此时,水滑石的饱和吸附量为19.33 mg/g。Mg/Al 水滑石经3次再生后,对腐殖酸的去除率仍然高达95%以上,表明 Mg/Al 水滑石的可重用性好。
採用共沉澱法製備瞭 Mg/Al 水滑石,併在不同溫度下煅燒。探究瞭煅燒溫度、材料投加量、pH 值、腐殖痠初始濃度對水滑石去除腐殖痠的影響。結果錶明,噹金屬物質的量比為3的 Mg/Al 水滑石投加量為0.5 g/L, pH 值為8.5,溫度為25℃時,水滑石對10 mg/L 的腐殖痠的去除率能達到96.64%,此時,水滑石的飽和吸附量為19.33 mg/g。Mg/Al 水滑石經3次再生後,對腐殖痠的去除率仍然高達95%以上,錶明 Mg/Al 水滑石的可重用性好。
채용공침정법제비료 Mg/Al 수활석,병재불동온도하단소。탐구료단소온도、재료투가량、pH 치、부식산초시농도대수활석거제부식산적영향。결과표명,당금속물질적량비위3적 Mg/Al 수활석투가량위0.5 g/L, pH 치위8.5,온도위25℃시,수활석대10 mg/L 적부식산적거제솔능체도96.64%,차시,수활석적포화흡부량위19.33 mg/g。Mg/Al 수활석경3차재생후,대부식산적거제솔잉연고체95%이상,표명 Mg/Al 수활석적가중용성호。
Different Mg/Al ratio hydrotalcite were prepared by co-precipitation.Effect of calcination tempera-ture,adsorbent dosage,pH,the initial concentration of humic acid were studied.The results show that when Mg/Al hydrotalcite(Mg/Al ratio=3)dosage was 0.5 g/L,the concentration of humic acid was 10 mg/L,temperature was 25℃,pH was 8.5,the humic acid removal rate reached 96.64%,while the saturated adsorption capacity of hydrotalcite was 1 9.33 mg/g.Mg/Al hydrotalcite has good reusability through the study on regeneration performance.After three regeneration cycles of hydrotalcite,the regeneration rate can reach more than 95%.
