摘要
应用纳米Fe3O4颗粒与Fe2+离子协同处理高浓度印染废水。利用磁性纳米Fe3O4颗粒的超顺磁特性,在外加磁场的作用下将磁颗粒、亚铁盐及有机物形成的混凝体迅速沉降下来,使废水得到有效的处理。实验表明,加入了磁性颗粒的废水其CODCr去除率明显高于只投加亚铁盐的废水,提高率在15%以上。实验同时研究了药剂的投加量、pH值等因素对废水处理效果的影响,并对其作用机理进行了初步探讨。
Fe3O4 Magnetic nano-particles and Fe^2＋ are used to treat the printing and dyeing waste water in this paper. For the high paramagnetism of nano-particles Fe3O4, the flocculation forming from Fe3O4 magnetic nanopanicles, Fe^2＋ and organic compound can sedimentate quickly, so the aim of waste water treatment is achieved. The study shows the reducing rate of CODCr, by using Fe3O4 magnetic particles and Fe^2＋ is about 15% higher than only by Fe^2＋. The experiment also studies the effect of the dosage and pH value on the treatment result and analyzes it theoretically.
出处
《苏州科技学院学报（自然科学版）》
CAS
2007年第1期52-55,共4页
Journal of Suzhou University of Science and Technology （Natural Science Edition）
关键词
印染废水
磁性Fe3O4
颗粒
CODCR去除率
亚铁盐
printing and dyeing waste water
Fe3O4 magnetic particles
the reducing rate of CODCr
Fe^2＋
