以胰蛋白酶为水解剂对明胶进行水解后,利用鞣制化学中的铁鞣机理使Fe（Ⅲ）络合在水解后所得胶原蛋白分子上,从而制备出了胶原蛋白改性阳离子絮凝剂,并将其用于废弃钻井液的絮凝处理,以CODCr去除率、悬浮物含量为指标,考察了不同络合反应条件对废弃钻井液絮凝效果的影响。利用IR、XRD、荧光光谱等对产物进行检测与表征。实验结果表明此种絮凝剂制备的最佳反应条件为反应时间4h,体系pH值为2.6,m（胶原）∶m（Fe2（SO4）3）=1∶1.4,温度35℃。所制备的絮凝剂用于废弃钻井液的絮凝时,其CODCr去除率为73.1%,悬浮物含量从2115mg/L降至330mg/L。
The gelatin was hydrolyzed by trypsin and the collagen protein solution was obtained.Then Fe（Ⅲ） was combined on it for iron tanning mechanism in tanning chemical.So modified collagen flocculant was prepared and used in the treatment of waste drilling water.The influence of different conditions on the treatment effect was studied by CODCr removal rate and suspended solids content.IR,XRD and fluorescence spectrum were used to characterized the structure of product.The result indicated that the best reaction condition on the preparation of flocculant was： reaction time was 4h,pH was 2.6,the quality ratio of collagen and Fe2（SO4）3 was 1︰1.4,the temperature was 35℃.When the flocculant prepared under this condition was used in the treatment of waste drilling water,CODCr removal rate was 73.1% and suspended solids content decreased from 2115 to 330mg/L.
参考文献
| [1] | 赵雄虎,王风春.废弃钻井液处理研究进展[J].钻井液与完井液,2004(02):43-48. |
| [2] | 张丽平,强西怀.醛酸与胶原的反应机理初探[J].中国皮革,2005(01):31-34. |
| [3] | Amarildo Otavio martins;Edson Luiz da Silva;Eduardo Carasek;mauro C.M.laranjeira;Valfredo T.DeFavere .Sulphoxine immobilized onto chitosan microspheres by spray drying: application for metal ions preconcentration by flow injection analysis[J].Talanta: The International Journal of Pure and Applied Analytical Chemistry,2004(2):397-403. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%