应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
9期
1584-1587
,共4页
聚丙烯酰胺凝胶%二乙烯三胺接枝凝胶%载锆凝胶%除氟
聚丙烯酰胺凝膠%二乙烯三胺接枝凝膠%載鋯凝膠%除氟
취병희선알응효%이을희삼알접지응효%재고응효%제불
polyacrylamide gel%DETA grafted gel%the loading-zirconium gel%defluorination
以凝胶为材料，利用锆和氟可以形成配合物，通过接枝二乙烯三胺、载锆，得到载锆凝胶。载锆凝胶在15℃，pH 约为6，振荡速度为120次/ min，吸附时间为180 min 时，可以固液比为0.003 g/ mL 除去10 mg/ L 的氟溶液中90.48%的氟离子，使其符合国家饮水标准。载锆凝胶适于处理偏酸性的含氟水。Na +、K +、Mg2+、Ca2+、NO -3、Cl -对载锆凝胶除氟基本无影响，H2 PO -4、SO2-4影响适中，CO2-3影响严重。载锆凝胶吸附氟可用 Langmuir 等温吸附模型描述。15℃下，根据 Langmuir 模型计算得到的最大吸附量为10.31 mg/ g。
以凝膠為材料，利用鋯和氟可以形成配閤物，通過接枝二乙烯三胺、載鋯，得到載鋯凝膠。載鋯凝膠在15℃，pH 約為6，振盪速度為120次/ min，吸附時間為180 min 時，可以固液比為0.003 g/ mL 除去10 mg/ L 的氟溶液中90.48%的氟離子，使其符閤國傢飲水標準。載鋯凝膠適于處理偏痠性的含氟水。Na +、K +、Mg2+、Ca2+、NO -3、Cl -對載鋯凝膠除氟基本無影響，H2 PO -4、SO2-4影響適中，CO2-3影響嚴重。載鋯凝膠吸附氟可用 Langmuir 等溫吸附模型描述。15℃下，根據 Langmuir 模型計算得到的最大吸附量為10.31 mg/ g。
이응효위재료，이용고화불가이형성배합물，통과접지이을희삼알、재고，득도재고응효。재고응효재15℃，pH 약위6，진탕속도위120차/ min，흡부시간위180 min 시，가이고액비위0.003 g/ mL 제거10 mg/ L 적불용액중90.48%적불리자，사기부합국가음수표준。재고응효괄우처리편산성적함불수。Na +、K +、Mg2+、Ca2+、NO -3、Cl -대재고응효제불기본무영향，H2 PO -4、SO2-4영향괄중，CO2-3영향엄중。재고응효흡부불가용 Langmuir 등온흡부모형묘술。15℃하，근거 Langmuir 모형계산득도적최대흡부량위10.31 mg/ g。
According to the fact that zirconium and fluoride could form a complex,based on gel material, through grafting diethylenetriamine,followed by loading zirconium,the loading-zirconium gel was gained. At 15 ℃,pH 6,shaking rate of 120 times/ min,adsorption time for 180 min,solid-liquid ratio of 0. 003 g/ mL, using the loading-zirconium gel,fluorine ions under the concentration of 10 mg / L were removed to 90. 48% ,which made it reached national standard of drinking water. The loading-zirconium gel was suit-able for dealing with weakly acidic water containing fluorine. Na + ,K + ,Mg2 + ,Ca2 + ,NO -3 ,Cl - almost had no effect on defluorination,and the effect of H2 PO -4 and SO2 -4 was moderate,while CO2 -3 affected the ad-sorption for fluoride badly. The adsorption for fluoride by the loading-zirconium gel could be described by Langmuir isotherm model. At 15 ℃ ,according to Langmuir isotherm model,the calculated maximum ad-sorption capacity was 10. 31 mg / g.
