文档介绍：聚硅酸氯化铝絮凝剂的研制及性能研究
摘要:聚硅酸氯化铝(PASC)是一种新型的无机高分子絮凝剂。其研究思路是,带负电的聚硅酸具有较高的相对分子质量,对水体中的胶体颗粒具有很强的吸附能力;而铝盐在水中可以水解形成系列带正电的荷的水解羟基铝离子,具有较强的电中和能力。将二者复合成一种产品,可使其成为同时具有电中和作用及吸附架桥能力的无机高分子混凝剂。
关键词:聚硅酸氯化铝(PASC) COD 絮凝剂印染废水;
Determined its best preparation senate element is: SiO2%=%, AL/Si =, pH= 4-5, the temperature, the stirs time and the intensity respectively is: 70oC, 60min, 1000r/min. To printing and dye the treatment of the waste water, the experimental result indicates , the most suitable operation parameter is: Throw it with measuring 255mg/l, PH =8. 100r/Min stirs 5min. Best COD except rate is %, the best turbidity except rate is %. Compares the polymerization aluminum chloride (PAC) COD removeing rate is %, best turbidity removeing rate is %, its ulation effect fairly good, the cost is lower than PAC. Has the certain significance to the actual water treatment
Study on the Preparation and ulating Performance Polysilicic-Aluminum Chloride
Students: Zou Wei yangtz university of chemistry and environmental project institute,
counselor: Dai Jie, chemistry of university of the Changjiang River and environmental project institute.
Abstact: Polysilicic-Aluminum chloride (PASC) is a new type macromolecule of ulants, Its research mentality is, belt negative electricity gathers the silicic acid to have the higher relativemolecular mass, has the very strong adsorptive capacity to in thewater body colloid pellet; But the aluminum salt may the hydrolisis form series belt positive electricity Holland in the water the hydrolisis hydroxy-aluminium ion, has in a stronger electricity and the ability. Duplicate synthesizes one kind of product the two, may cause it to e simultaneously has the electricity neutralization and the adsorption bridging ability anic high polymer ulating agent. This experiment applies the sodium silicate, the aluminum chloride makes under the certain condition gathers the silicic acid aluminum chloride (PASC). And to its stab