摘要
以水玻璃、废盐酸为原料，制备聚硅酸，研究表明：在硅酸钠浓度为4％～8％，pH小于4的条件下，室温熟化5h左右，可制得稳定的聚硅酸。将聚硅酸与聚合硫酸氯化铁在一定条件下复合，制备聚硅酸聚合硫酸氯化铁复合型絮凝剂，研究表明：在氯根与硫酸根物质的量比为1：1，且铁与硅物质的量比为2：1时，制得的复合型絮凝剂对造纸废水具有最佳处理效果。本研究以废弃物为原料，合成新型絮凝剂，来处理造纸废水，旨在倡导循环经济。
By using the sodium silicate and waste hydrochloric acid as raw materials, polysilicic acid is prepared. The study shows that, under the conditions of the concentration of sodium silicic acid being 4 % - 8 %, the pH〈 4, and the reaction time being about 5 hour, the stable polysilidc add is made. The polysilidc acid is compounded with polyferric chloride sulphate under certain renditions, then the polysilicie acid-polyferric chloride sulphate flocculence is prepared. The study shows that： when the Cl^-/SO4^2 - molar rate is 1 ： 1, the Fe/Si molar rate is 2： 1, the flocculence has the best effect on paper-making waste water treatment. This research takes the trash as raw material, compounds a new flocculating admixture, then utilizes it to process the paper-making waste water for the purpose of initiating the circulation economy.
出处
《长江科学院院报》
CSCD
北大核心
2009年第6期48-50,55,共4页
Journal of Changjiang River Scientific Research Institute
基金
浙江省教育厅科研项目(20071220)
关键词
聚硅酸
硫酸氯化铁
复合型絮凝剂
造纸废水
polysilicic add
sulphate chlorinated-iron
oompound floccuating agent
paper making waste water
